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Oscar Health, Inc
(NYSE:OSCR) 

OSCR stock logo

Oscar Health, Inc. provides health insurance products and services to individuals, families, and businesses in the United States. The company was formerly known as Mulberry Health Inc. and changed its name to Oscar Health, Inc. in January 2021. Oscar Health, Inc. was founded in 2012 and is headquart...

Founded: 2012
Founder: Joshua Kushner, Mario Schlosser, Kevin Nazemi 
CEO: Mario Schlosser  
Sector: Healthcare
Industry: Healthcare Plans

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At a glance:
  • Membership Growth and Retention Remain Key Drivers: Oscar’s revenue trajectory is closely tied to member growth, retention, and mix across ACA marketplace plans, with enrollment season dynamics and churn impacting near-term results.
  • Medical Loss Ratio (MLR) and Utilization Trends Are Central to Profitability: Profitability depends heavily on managing claims costs and utilization, including how accurately premiums price risk and how medical cost trends evolve versus expectations.
  • Adjusted EBITDA and Path to Sustainable Profitability in Focus: Investors typically track operating leverage, administrative cost discipline, and whether Oscar can sustain positive adjusted EBITDA while navigating competitive pricing conditions.
  • Regulatory and ACA Policy Sensitivity: Results can be materially affected by ACA-related policy changes, risk adjustment, reinsurance dynamics, and state/federal regulatory actions that influence premiums and member risk pools.
  • Balance Sheet Strength and Capital Requirements: Insurance operations require maintaining regulatory capital; cash position, statutory capital levels, and any financing needs are important for assessing flexibility and resilience.
Bull Thesis:
  • Improving Profitability Metrics and Path to Positive Adjusted EBITDA: Oscar Health has demonstrated significant improvements in its Medical Loss Ratio (MLR) and operating expenses in recent quarters. The company has articulated a clear path towards achieving positive adjusted EBITDA, driven by better risk selection, pricing discipline, and operational efficiencies, particularly within its core insurance business.
  • Differentiated Technology Platform and Member Engagement: Oscar's technology-first approach, leveraging AI and data analytics, allows for a more personalized and engaging member experience. This differentiation can lead to higher member satisfaction, better health outcomes, and potentially lower long-term healthcare costs compared to traditional insurers, fostering stronger retention and brand loyalty.
  • Strategic Partnerships and Validation of +Oscar Platform: The company's ability to forge strategic partnerships, such as the recent collaboration with Cigna + Evernorth, validates the strength and scalability of its +Oscar technology platform. These partnerships not only provide new revenue streams but also demonstrate the potential for Oscar's tech stack to power other healthcare entities, expanding its market opportunity beyond direct insurance sales.
  • Strong User Growth and Market Expansion: Oscar continues to expand its footprint into new markets and grow its member base across its various insurance plans (Individual & Family, Small Group, C+O). This consistent growth indicates a demand for its innovative health insurance offerings and its ability to attract and retain members in competitive environments.
Bear Thesis:
  • Persistent Unprofitability and Negative Free Cash Flow: Despite improvements in MLR, Oscar Health continues to report significant net losses and negative free cash flow. The company's ability to achieve sustainable profitability and generate positive cash flow remains a key concern for investors, potentially requiring further capital raises in the future.
  • Intense Competition from Established Players: The health insurance market is highly competitive, dominated by large, well-capitalized incumbents (e.g., UnitedHealth Group, Anthem, Aetna) with significant scale, brand recognition, and negotiating power. Oscar faces an uphill battle to gain substantial market share and achieve economies of scale comparable to these established players.
  • Regulatory and Healthcare Policy Uncertainty: The healthcare industry is heavily regulated, and changes in government policy (e.g., Affordable Care Act subsidies, risk adjustment mechanisms, state-level regulations) can significantly impact Oscar's business model, revenue, and profitability, creating an unpredictable operating environment.
  • Execution Risk in Scaling a Complex Business: Successfully scaling a technology-driven health insurance company involves significant execution risk. Managing rapid growth, maintaining technological innovation, controlling costs, navigating complex regulatory landscapes, and building effective provider networks simultaneously presents substantial operational challenges that could hinder the path to profitability.
Main Competitors:
  • UnitedHealth Group ($UNH) (UnitedHealthcare (Health Insurance), Optum (Health Services)), As the largest health insurer, UNH competes across all of Oscar's markets (individual, small group, Medicare Advantage) by leveraging immense scale, vast provider networks, established brand trust, and significant investments in digital health tools and integrated care services through Optum. They offer comprehensive plans and competitive pricing that Oscar, as a smaller player, struggles to match in breadth and depth.
  • Elevance Health ($ELV) (Blue Cross Blue Shield plans (e.g., Anthem), Carelon (Health Services)), Operating under various Blue Cross Blue Shield brands, Elevance Health competes directly with Oscar in individual, small group, and Medicare Advantage markets. They leverage strong regional brand recognition, extensive provider relationships, and growing digital platforms and care management programs to attract and retain members, often benefiting from long-standing community ties and employer relationships.
  • Humana Inc. ($HUM) (Medicare Advantage plans, CenterWell (Health Services)), Humana is a dominant force in the Medicare Advantage market, a key growth area for Oscar. They compete by offering a wide array of plans tailored for seniors, leveraging deep experience with this population, extensive provider networks, and integrated care services through CenterWell. Their established brand and specialized offerings for seniors provide a significant competitive advantage.
  • Alignment Healthcare ($ALHC) (Alignment Health Plan (Medicare Advantage)), Alignment Healthcare represents a direct tech-enabled competitor in the Medicare Advantage space. They compete with Oscar by offering data-driven, value-based MA plans focused on proactive care management, personalized member engagement, and strong provider partnerships, aiming to improve health outcomes and reduce costs through a high-touch, coordinated care model.
Moat:
Oscar Health's initial competitive advantage stemmed from its technology-first, consumer-centric approach, aiming to simplify healthcare navigation and integrate virtual care. However, this moat is increasingly challenged. Traditional giants like UnitedHealth Group and Elevance Health are rapidly investing in digital transformation, virtual care, and AI, leveraging their immense scale, vast provider networks, and established brand trust to offer comprehensive and competitive plans. Niche tech-enabled players like Alignment Healthcare also compete effectively in specific segments like Medicare Advantage with focused, data-driven models. Oscar faces significant hurdles in achieving profitability and scaling its operations against these well-resourced competitors, whose existing infrastructure and market penetration often allow for more competitive pricing and broader service offerings. Oscar's ongoing challenge is to translate its innovative user experience and proprietary technology into sustainable market share and financial performance amidst intense competition and a capital-intensive regulatory environment.
Income Statements:
Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 
                         
      revenue
                         
      premium
    4,580,862,000 2,746,660,000 2,923,968,000 2,803,444,000 2,995,821,000 2,345,204,000 2,368,257,000 2,164,116,000 2,093,682,000             
      investment income
    60,614,000 49,610,000 53,215,000 54,004,000 46,112,000 42,420,000 50,326,000 49,994,000 42,989,000             
      other revenues
    5,718,000 8,965,000 8,801,000 6,497,000                  
      total revenue
    4,647,194,000 2,805,235,000 2,985,984,000 2,863,945,000 3,046,263,000 2,392,436,000 2,423,482,000 2,219,341,000 2,142,305,000 1,431,658,000 1,439,991,000 1,521,535,000 1,469,685,000 995,127,000 978,427,000 1,017,319,000 972,765,000 496,067,000 443,979,000 529,281,000 369,388,000 
      yoy
    52.55% 17.25% 23.21% 29.04% 42.20% 67.11% 68.30% 45.86% 45.77% 43.87% 47.17% 49.56% 51.08% 100.60% 120.38% 92.21% 163.35%     
      qoq
    65.66% -6.05% 4.26% -5.98% 27.33% -1.28% 9.20% 3.60% 49.64% -0.58% -5.36% 3.53% 47.69% 1.71% -3.82% 4.58% 96.10% 11.73% -16.12% 43.29%  
      operating expenses
                         
      medical
    3,229,857,000 2,620,071,000 2,586,330,000 2,552,973,000 2,259,651,000 2,065,114,000 2,003,979,000 1,708,722,000 1,554,774,000             
      selling, general, and administrative
    706,234,000 511,031,000 521,592,000 534,485,000 482,759,000 465,820,000 460,377,000 435,206,000 394,162,000             
      depreciation and amortization
    7,018,000 7,880,000 7,312,000 6,970,000 6,730,000 9,233,000 7,500,000 7,601,000 7,811,000             
      total operating expenses
    3,943,109,000 3,138,982,000 3,115,234,000 3,094,428,000 2,749,140,000 2,540,167,000 2,471,856,000 2,151,529,000 1,956,747,000 1,577,135,000 1,498,235,000 1,528,064,000 1,495,050,000 1,217,606,000 1,170,799,000 1,123,806,000 1,041,294,000 692,822,000 656,923,000 601,532,000 431,919,000 
      earnings from operations
    704,085,000 -333,747,000 -129,250,000 -230,483,000 297,123,000 -147,731,000 -48,374,000 67,812,000 185,558,000             
      interest expense
    5,383,000 -1,097,000 6,857,000 5,847,000 5,994,000 6,026,000 5,815,000 5,991,000 5,902,000 6,217,000 6,130,000 6,120,000 6,136,000 6,135,000 6,126,000 6,141,000 4,221,000 397,000 398,000 228,000 3,697,000 
      other expenses
    -71,000 20,031,000 3,184,000 -2,794,000 2,918,000 -68,000 -1,877,000 872,000 1,178,000 -1,050,000 414,000 1,612,000 6,106,000 -1,339,000 -3,336,000 -793,000 3,053,000     
      earnings before income taxes
    698,773,000 -352,681,000 -139,291,000 -233,536,000 288,211,000 -153,689,000 -52,312,000 60,949,000 178,478,000             
      income tax expense
    19,750,000 -247,000 -1,807,000 -5,045,000 12,705,000 -404,000 2,076,000 4,637,000 996,000 -806,000 915,000 1,164,000 2,021,000 -715,000 -1,615,000       
      net income
    679,023,000 -352,434,000 -137,484,000 -228,491,000 275,506,000 -153,285,000 -54,388,000 56,312,000 177,482,000 -149,838,000 -65,703,000 -15,425,000 -39,628,000 -226,560,000 -193,547,000 -112,125,000 -77,320,000 -198,242,000 -212,745,000 -73,068,000 -87,371,000 
      yoy
    146.46% 129.92% 152.78% -505.76% 55.23% 2.30% -17.22% -465.07% -547.87% -33.86% -66.05% -86.24% -48.75% 14.28% -9.02% 53.45% -11.50%     
      qoq
    -292.67% 156.35% -39.83% -182.94% -279.73% 181.84% -196.58% -68.27% -218.45% 128.05% 325.95% -61.08% -82.51% 17.06% 72.62% 45.01% -61.00% -6.82% 191.16% -16.37%  
      net income margin %
    14.61% -12.56% -4.60% -7.98% 9.04% -6.41% -2.24% 2.54% 8.28% -10.47% -4.56% -1.01% -2.70% -22.77% -19.78% -11.02% -7.95% -39.96% -47.92% -13.81% -23.65% 
      less: net income attributable to noncontrolling interests
    27,000 177,000 -34,000 -130,000 235,000 262,000 208,000 105,000 114,000 192,000 -305,000 103,000 144,000 -514,000 -634,000 39,000      
      net income attributable to oscar health, inc.
    678,996,000 -352,611,000 -137,450,000 -228,361,000 275,271,000 -153,547,000 -54,596,000 56,207,000 177,368,000             
      earnings per share
                         
      basic
    2.28 -1.34 -0.53 -0.89 1.1 -0.64 -0.22 0.24 0.77             
      diluted
    2.07 -1.34 -0.53 -0.89 0.92 -0.55 -0.22 0.2 0.62             
      weighted-average common shares outstanding
                         
      basic
    298,184 262,388 259,273 255,531 251,279 240,386 243,106 238,672 231,443             
      diluted
    329,751 262,388 259,273 255,531 305,938 265,853 243,106 303,965 293,796             
      services and other
        4,330,000 4,812,000 4,899,000 5,231,000 5,634,000             
      premiums before ceded reinsurance
             1,391,193,000 1,394,985,000 1,484,538,000 1,426,262,000 1,332,931,000 1,318,048,000 1,368,477,000 1,315,064,000 705,502,000 673,460,000 723,927,000 610,099,000 
      reinsurance premiums ceded
             -798,000 -2,903,000 -9,572,000 2,364,000 -365,474,000 -364,384,000 -373,882,000 -359,663,000 -212,921,000 -231,717,000 -195,768,000 -241,562,000 
      premiums earned
             1,390,395,000 1,392,082,000 1,474,966,000 1,428,626,000 967,457,000 953,664,000 994,595,000 955,401,000 492,581,000 441,743,000 528,159,000 368,537,000 
      administrative services revenue
             3,830,000 3,871,000 3,856,000 3,885,000 2,681,000 19,421,000 20,452,000 18,493,000     
      investment income and other revenue
             37,433,000 44,038,000 42,713,000 37,174,000 24,989,000 5,342,000 2,272,000 -1,129,000 3,486,000 2,236,000 1,122,000 851,000 
      claims incurred
             1,205,239,000 1,163,194,000 1,181,999,000 1,091,592,000 884,904,000 852,689,000 808,639,000 734,566,000 482,492,000 453,576,000 419,879,000 268,048,000 
      other insurance costs
             206,379,000 192,863,000 197,784,000 227,431,000 195,859,000 174,978,000 170,200,000 165,402,000 124,434,000 111,302,000 94,790,000  
      general and administrative expenses
             85,610,000 75,503,000 76,453,000 102,150,000 75,808,000 78,557,000 80,754,000 74,664,000 89,838,000 61,267,000 50,911,000 63,062,000 
      federal and state assessments
             74,311,000 69,876,000 72,647,000 73,891,000 71,788,000 71,114,000 68,749,000 69,867,000 36,244,000 35,453,000 36,873,000 30,515,000 
      premium deficiency reserve release
             -1,008,500 -3,201,000 -819,000 -14,000 -10,753,000 -6,539,000 -4,536,000 -3,205,000 -40,186,000 -4,675,000 -921,000 -9,543,000 
      income from operations
             -145,477,000 -58,244,000 -6,529,000 -25,365,000 -222,479,000 -192,372,000 -106,487,000 -68,529,000 -196,755,000 -212,944,000 -72,251,000 -62,531,000 
      yoy
             -34.61% -69.72% -93.87% -62.99% 13.07% -9.66% 47.38% 9.59%     
      qoq
             149.77% 792.08% -74.26% -88.60% 15.65% 80.65% 55.39% -65.17% -7.60% 194.73% 15.54%  
      operating margin %
    0% 0% 0% 0% 0% 0% 0% 0% 0% -10.16% -4.04% -0.43% -1.73% -22.36% -19.66% -10.47% -7.04% -39.66% -47.96% -13.65% -16.93% 
      income before income taxes
             -150,644,000 -64,788,000 -14,261,000 -37,607,000 -227,275,000 -195,162,000 -111,835,000 -75,803,000 -198,353,000 -213,342,000 -72,479,000 -86,406,000 
      net loss attributable to oscar health, inc.
             -150,030,000 -65,398,000 -15,528,000 -39,772,000 -226,046,000 -192,913,000 -112,164,000 -75,152,000     
      earnings per share
                         
      net income per share
             -0.67 -0.29 -0.07 -0.18 -1.05 -0.91 -0.53 -0.36 -0.99 -1.02 -0.35 -0.98 
      weighted-average common shares outstanding, basic and diluted
             221,655,493 223,098,974 219,400,458 216,912,866 212,474,615 212,822,733 211,311,494 210,547,696 178,967,056 208,159,343 207,478,268 88,865,726 
      loss on extinguishment of debt
                        20,178,000 
      income tax provision
                   290,000 1,517,000 -111,000 -597,000 589,000 965,000 
      less: net loss attributable to noncontrolling interests
                    -2,168,000     
      health insurance industry fee
                         
      other insurance cost
                        79,837,000 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 
                           
        assets
                           
        current assets:
                           
        cash and cash equivalents
      4,805,139,000 2,774,151,000 2,148,865,000 2,598,942,000 2,236,555,000 1,527,186,000 1,206,145,000 2,268,154,000 2,230,799,000 1,870,315,000 1,399,791,000 2,322,069,000 2,109,571,000 1,558,595,000 2,112,930,000 2,362,632,000 2,068,632,000 1,103,995,000 1,076,699,000 1,671,540,000 2,321,287,000 
        short-term investments
      1,994,644,000 1,216,461,000 887,591,000 938,102,000 751,489,000 624,461,000 503,784,000 363,639,000 616,134,000 689,833,000 1,044,445,000 1,255,705,000 1,324,544,000 1,397,287,000 718,228,000 909,006,000 810,002,000 587,086,000 586,954,000 614,979,000 389,016,000 
        accounts receivable
      587,023,000                     
        receivables from cms
      222,195,000                     
        reinsurance recoverable
      142,487,000 99,750,000 159,391,000 192,698,000 187,546,000 291,537,000 273,317,000 241,284,000 242,935,000 241,194,000 277,803,000 353,883,000 452,235,000 892,887,000 824,478,000 740,204,000 585,688,000     
        other current assets
      25,817,000 24,331,000 28,588,000 30,464,000 23,018,000 21,320,000 20,661,000 15,514,000 8,983,000 6,564,000 8,358,000 7,561,000 10,712,000 6,450,000 15,811,000 19,541,000      
        total current assets
      7,777,305,000 4,613,404,000 3,762,515,000 4,313,222,000 3,774,500,000 2,845,174,000 2,368,054,000 3,359,093,000 3,503,792,000 3,061,100,000 2,991,622,000 4,192,632,000 4,131,219,000 4,121,555,000 3,931,174,000 4,260,150,000 3,674,819,000 2,305,926,000 2,241,161,000 2,816,033,000 3,179,360,000 
        property, equipment, and capitalized software
      94,194,000 88,350,000 83,421,000 77,669,000 71,998,000 66,793,000 66,631,000 63,953,000 61,406,000 61,930,000 62,022,000 63,053,000 64,083,000 59,888,000 56,492,000 50,934,000 48,607,000 46,611,000 43,376,000 40,874,000 38,993,000 
        long-term investments
      1,266,775,000 1,470,987,000 1,751,376,000 1,845,884,000 1,872,677,000 1,815,254,000 1,933,892,000 1,465,974,000 736,624,000 365,309,000 179,633,000 189,638,000 165,239,000 222,919,000 196,454,000 314,836,000 502,149,000 844,476,000 838,273,000 803,289,000 329,597,000 
        restricted deposits
      28,631,000 32,951,000 27,918,000 31,086,000 31,010,000 30,878,000 30,069,000 29,856,000 29,814,000 29,870,000 27,335,000 27,292,000 27,287,000 27,483,000 27,459,000 27,179,000 27,198,000 28,085,000 27,757,000 26,455,000 26,449,000 
        other assets
      122,741,000 119,719,000 120,647,000 116,266,000 93,584,000 82,397,000 84,369,000 87,273,000 87,217,000 83,271,000 88,899,000 92,330,000 95,202,000 94,756,000 97,130,000 98,068,000 97,153,000 95,957,000 18,828,000 19,368,000 19,472,000 
        total assets
      9,289,646,000 6,325,411,000 5,745,877,000 6,384,127,000 5,843,769,000 4,840,496,000 4,483,015,000 5,006,149,000 4,418,853,000 3,601,480,000 3,349,511,000 4,564,945,000 4,483,030,000 4,526,601,000 4,308,709,000 4,751,167,000 4,350,521,000 3,321,650,000 3,169,880,000 3,706,486,000 3,594,356,000 
        liabilities and stockholders' equity
                           
        current liabilities:
                           
        benefits payable
      1,734,051,000 1,455,385,000 1,564,395,000 1,551,632,000 1,465,578,000 1,356,730,000 1,356,726,000 1,252,228,000 1,248,347,000 965,986,000 910,449,000 855,711,000 954,076,000 937,727,000 995,760,000 880,527,000 761,329,000 513,582,000 497,324,000 407,322,000 358,066,000 
        payables to cms
      4,723,244,000                     
        accounts payable and other liabilities
      505,943,000 649,720,000 556,729,000 583,871,000 634,007,000 432,428,000 395,481,000 347,523,000 303,245,000 273,367,000 260,137,000 261,519,000 299,461,000  252,358,000 226,274,000 220,516,000     
        unearned premiums
      172,004,000 166,203,000 77,117,000 69,489,000 70,897,000 74,389,000 66,129,000 59,970,000 65,541,000 65,918,000 71,601,000 73,072,000 73,349,000 78,998,000 75,134,000 72,691,000 74,700,000 75,044,000 56,175,000 63,882,000 71,946,000 
        reinsurance payable
      5,112,000 3,579,000 7,276,000 13,380,000 23,643,000 41,346,000 51,117,000 60,094,000 61,938,000 61,024,000 67,314,000 67,635,000 40,458,000 427,649,000 435,632,000 430,919,000 392,235,000 205,231,000 221,311,000 248,142,000 260,055,000 
        total current liabilities
      7,140,354,000 4,862,587,000 3,976,822,000 4,865,559,000 4,148,576,000 3,463,234,000 2,954,777,000 3,501,741,000 3,019,425,000 2,429,012,000 2,060,876,000 3,244,317,000 3,181,698,000 3,263,922,000 2,852,544,000 3,130,248,000 2,640,880,000 1,852,289,000 1,616,668,000 1,972,655,000 1,808,119,000 
        long-term debt
      430,876,000 430,095,000 686,294,000 299,944,000 299,749,000 299,555,000 299,361,000 299,166,000 298,972,000 298,777,000 298,583,000 298,388,000 298,194,000 297,999,000 297,805,000 297,610,000 297,416,000     
        other liabilities
      51,368,000 51,994,000 55,765,000 57,274,000 59,329,000 61,282,000 63,537,000 64,674,000 66,169,000 67,574,000 68,618,000 70,275,000 71,376,000 72,280,000 73,791,000 74,906,000 77,058,000 76,839,000    
        total liabilities
      7,622,598,000 5,344,676,000 4,718,881,000 5,222,777,000 4,507,654,000 3,824,071,000 3,317,675,000 3,865,581,000 3,384,566,000 2,795,363,000 2,428,077,000 3,612,980,000 3,551,268,000 3,634,201,000 3,224,140,000 3,502,764,000 3,015,354,000 1,929,128,000 1,616,668,000 1,972,655,000 1,808,119,000 
        commitments and contingencies
                           
        stockholders' equity
                           
        class a common stock
      3,000 3,000 2,000 2,000 2,000  2,000 2,000 2,000             
        class b common stock
                           
        treasury stock
      -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 -2,923,000 
        additional paid-in capital
      4,277,292,000 4,256,972,000 3,952,445,000 3,951,980,000 3,902,373,000 3,869,617,000 3,837,369,000 3,786,885,000 3,736,885,000 3,682,294,000 3,653,535,000 3,620,766,000 3,582,761,000 3,509,007,000 3,479,392,000 3,450,409,000 3,422,033,000 3,393,533,000 3,356,406,000 3,324,337,000 3,303,031,000 
        accumulated deficit
      -2,615,438,000 -3,294,434,000 -2,941,823,000 -2,804,373,000 -2,576,012,000 -2,851,283,000 -2,697,736,000 -2,643,140,000 -2,699,347,000 -2,876,715,000 -2,726,685,000 -2,661,287,000 -2,645,759,000 -2,605,987,000 -2,379,941,000 -2,187,028,000 -2,074,864,000 -1,999,712,000 -1,800,290,000 -1,587,545,000 -1,514,477,000 
        accumulated other comprehensive income
      5,000,000 18,030,000 16,386,000 13,720,000 9,601,000 -1,827,000 26,051,000 -2,625,000 -2,594,000 1,309,000 -4,453,000 -6,856,000 -4,479,000  -14,491,000 -15,221,000 -12,206,000 -3,671,000 17,000 -40,000 604,000 
        total oscar health, inc. stockholders' equity
      1,663,934,000  1,024,087,000 1,158,406,000 1,333,041,000  1,162,763,000 1,138,199,000 1,032,023,000  919,476,000 949,702,000 929,602,000  1,082,039,000 1,245,239,000 1,332,042,000     
        noncontrolling interests
      3,114,000 3,087,000 2,909,000 2,944,000 3,074,000 2,839,000 2,577,000 2,369,000 2,264,000 2,150,000 1,958,000 2,263,000 2,160,000 2,016,000 2,530,000 3,164,000 3,125,000 5,293,000    
        total stockholders' equity
      1,667,048,000  1,026,996,000 1,161,350,000 1,336,115,000  1,165,340,000 1,140,568,000 1,034,287,000  921,434,000 951,965,000 931,762,000  1,084,569,000 1,248,403,000      
        total liabilities and stockholders' equity
      9,289,646,000 6,325,411,000 5,745,877,000 6,384,127,000 5,843,769,000 4,840,496,000 4,483,015,000 5,006,149,000 4,418,853,000 3,601,480,000 3,349,511,000 4,564,945,000 4,483,030,000 4,526,601,000 4,308,709,000 4,751,167,000 4,350,521,000     
        premiums and accounts receivable
       442,645,000 445,499,000 465,399,000 488,766,000 315,891,000 300,635,000 398,366,000 342,904,000 201,269,000 207,098,000 193,079,000 186,035,000  215,471,000 174,249,000 157,298,000     
        risk adjustment transfer receivable
       56,066,000 92,581,000 87,617,000 87,126,000 64,779,000 63,512,000 72,136,000 62,037,000 51,925,000 54,127,000 60,335,000 48,122,000 49,861,000 44,256,000 54,518,000 50,615,000 40,659,000 43,099,000 39,917,000 37,765,000 
        risk adjustment transfer payable
       2,587,700,000 1,771,305,000 2,647,187,000 1,954,451,000 1,558,341,000 1,083,880,000 1,779,039,000 1,336,022,000 1,056,941,000 751,196,000 1,982,999,000 1,810,155,000 1,517,493,000 1,078,694,000 1,498,332,000 1,166,059,000 794,398,000 613,230,000 1,043,863,000 922,069,000 
        total oscar health, inc. stockholders’ equity
       977,648,000    1,013,586,000    803,967,000    890,384,000    1,387,229,000    
        total stockholders’ equity
       980,735,000    1,016,425,000    806,117,000    892,400,000   1,335,167,000 1,392,522,000 1,553,212,000 1,733,831,000 1,786,237,000 
        premium deficiency reserve
            1,444,000 2,887,000 4,332,000 5,776,000 179,000 3,381,000 4,199,000 4,214,000 14,966,000 21,505,000 26,041,000 29,246,000 69,432,000 74,107,000 75,029,000 
        class a common stock, 0.00001 par value per share...
           2,000                
        class b common stock, 0.00001 par value per share...
                           
        assets:
                           
        class a common stock, 0.00001 par value...
               2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 
        class b common stock, 0.00001 par value...
                           
        preferred stock, 0.00001 par value...
                           
        premium and other receivables
                   216,475,000    138,414,000 117,534,000 85,629,000 75,851,000 
        accounts payable and accrued liabilities
                   297,841,000    234,788,000 159,196,000 135,339,000 120,954,000 
        accumulated other comprehensive loss
                   -9,715,000        
        accrued investment income
                      2,584,000 3,782,000 3,086,000 3,794,000 1,445,000 
        net deferred tax asset
                      595,000 595,000 485,000 467,000 485,000 
        balances due from reinsurance programs
                       431,990,000 413,789,000 400,174,000 353,996,000 
        liabilities, convertible preferred stock and stockholders' equity
                           
        warrant liabilities
                           
        convertible preferred stock, 0.00001 par value...
                           
        series a common stock, 0.00001 par value...
                           
        total liabilities, convertible preferred stock and stockholders' equity
                       3,321,650,000 3,169,880,000 3,706,486,000 3,594,356,000 
                           
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 
                            
          cash flows from operating activities:
                            
          net income
        -352,434,000 -137,484,000 -228,491,000 275,506,000 -153,285,000 -54,388,000 56,312,000 177,482,000             
          adjustments to reconcile net income to net cash from operating activities:
                            
          deferred taxes
        2,624,000   36,000 -2,270,000 -119,000 130,000 -79,000 -37,000 69,000 209,000 -183,000 -171,000 2,000   -109,000 -18,000 18,000 8,000 
          net realized loss on sale of financial instruments
            -25,000    61,000 -34,000 43,000         
          depreciation and amortization expense
        7,880,000 7,312,000 6,970,000 6,730,000 9,233,000 7,500,000 7,601,000 7,811,000 7,742,000 9,191,000 8,822,000 4,939,000 3,735,000 4,058,000 3,691,000 3,799,000 3,970,000 3,645,000 3,587,000 3,403,000 
          amortization of debt issuance costs
        856,000 385,000 195,000 194,000 195,000 194,000 195,000 194,000 195,000 194,000 195,000 194,000 194,000 195,000 195,000 129,000 329,000 
          stock-based compensation expense
        18,085,000 20,485,000 24,109,000 24,975,000 25,855,000 29,311,000 28,713,000 25,945,000 26,142,000 28,768,000 33,279,000 71,494,000 29,088,000 28,560,000 26,991,000 27,690,000 28,268,000 20,640,000 18,273,000 19,115,000 
          net accretion of investments
        -6,727,000 -7,399,000 -7,994,000 -7,673,000  -6,737,000 -5,993,000 -6,226,000             
          non-cash inducement payment for convertible note conversion
                            
          change in provision for credit losses
        -54,000 -70,000 -15,300,000 -8,650,000 1,200,000 -300,000 -200,000 -1,000,000             
          changes in assets and liabilities:
                            
          decrease in:
                            
          premiums and accounts receivable
        2,908,000     98,031,000 -55,263,000 -140,635,000 -22,783,000 -14,018,000 -7,044,000 30,440,000  -41,222,000 -16,951,000 -18,884,000     
          risk adjustment transfer receivable
        36,516,000 -4,964,000 -491,000 -22,347,000 -1,267,000 8,624,000 -10,099,000 -10,112,000 2,202,000 6,209,000 -12,214,000 1,740,000 -5,605,000 10,262,000 -3,903,000 -9,956,000 2,439,000 -3,182,000 -2,151,000 -6,608,000 
          reinsurance recoverable
        59,641,000 33,307,000 -5,151,000 103,990,000 -18,220,000 -32,034,000 1,652,000 -1,741,000 36,609,000 76,080,000 98,352,000 440,652,000 -68,409,000 -84,274,000 -154,516,000 -153,698,000     
          other assets
        2,643,000 -3,247,000 -13,247,000 -13,265,000 3,580,000 -2,126,000 -6,716,000 -6,285,000 7,453,000 2,560,000 5,820,000 -4,526,000 11,916,000 4,667,000 -16,083,000 -743,000 -4,169,000 538,000 588,000 -6,336,000 
          increase in:
                            
          benefits payable
        -109,010,000 12,763,000 86,054,000 108,848,000 4,000 104,498,000 3,881,000 282,361,000 55,536,000 54,738,000 -98,365,000 16,349,000 -58,032,000 115,233,000 119,198,000 247,747,000 16,257,000 90,002,000 49,256,000 46,152,000 
          unearned premiums
        89,087,000 7,627,000 -1,408,000 -3,492,000 8,261,000 6,158,000 -5,571,000 -376,000 -5,684,000 -1,471,000 -277,000 -5,648,000 3,863,000 2,443,000 -2,009,000 -344,000 18,869,000 -7,707,000 -8,064,000 42,000 
          premium deficiency reserve
            -1,444,000 -1,444,000 -1,444,000 -1,444,000 5,597,000 -3,203,000 -818,000 -14,000 -10,753,000 -6,539,000 -4,536,000 -3,205,000 -40,186,000 -4,675,000 -922,000 -9,542,000 
          accounts payable and other liabilities
        93,890,000 -30,010,000 -58,019,000 199,627,000 34,689,000 46,825,000 42,781,000 28,473,000 12,186,000 -3,036,000 -39,044,000 714,000 43,969,000 24,967,000 3,608,000 -14,733,000     
          reinsurance payable
        -3,696,000 -6,105,000 -10,263,000 -17,703,000 -9,771,000 -8,977,000 -1,844,000 914,000 -6,291,000 -320,000 27,176,000 -387,191,000 -7,983,000 4,714,000 38,683,000 187,004,000 -16,079,000 -26,832,000 -11,913,000 -83,258,000 
          risk adjustment transfer payable
        816,395,000 -875,882,000 692,736,000 396,110,000 474,462,000 -695,159,000 443,016,000 279,081,000 305,745,000 -1,231,804,000 172,845,000 292,662,000 438,799,000 -419,638,000 332,273,000 371,661,000 181,168,000 -430,633,000 121,794,000 205,699,000 
          net cash from operating activities
        671,903,000 -964,658,000 509,067,000 878,542,000 346,820,000 -500,141,000 497,151,000 634,363,000 296,868,000 -1,149,266,000 165,524,000 414,715,000 151,394,000 -548,361,000 214,467,000 562,849,000 34,479,000 -589,252,000 55,337,000 317,691,000 
          capital expenditures
        -9,062,000 -9,007,000 -9,277,000 -9,026,000 -6,819,000 -7,566,000 -7,562,000 -5,950,000 -6,102,000 -6,479,000 -5,617,000 -7,379,000 -7,130,000 -9,617,000 -6,018,000 -6,247,000 -7,206,000 -6,148,000 -5,948,000 -6,583,000 
          free cash flows
        662,841,000 -973,665,000 499,790,000 869,516,000 340,001,000 -507,707,000 489,589,000 628,413,000 290,766,000 -1,155,745,000 159,907,000 407,336,000 144,264,000 -557,978,000 208,449,000 556,602,000 27,273,000 -595,400,000 49,389,000 311,108,000 
          cash flows from investing activities:
                            
          purchase of investments
        -233,245,000 -172,835,000 -270,969,000 -336,869,000 -110,461,000 -660,056,000 -806,300,000 -556,693,000 -214,799,000 -84,495,000 -335,038,000 -202,650,000 -849,528,000 -31,074,000 -145,335,000 -166,769,000 -284,168,000 -327,583,000   
          sale of investments
        118,470,000 15,761,000 4,062,000    5,201,000 7,496,000 4,108,000 15,052,000 167,000 117,049,000 74,026,000 169,374,000 202,047,000 134,590,000 203,642,000 83,798,000 
          maturity and paydowns of investments
        192,551,000 210,754,000 111,513,000 155,906,000                 
          purchase of property, equipment and capitalized software
        -9,062,000 -9,007,000 -9,277,000 -9,026,000 -6,819,000 -7,566,000 -7,562,000 -5,950,000 -6,102,000 -6,479,000 -5,617,000 -7,379,000 -7,130,000 -9,617,000 -6,018,000 -6,247,000 -7,206,000 -6,148,000 -5,948,000 -6,583,000 
          change in restricted deposits
        1,050,000 2,699,000   -13,000 2,491,000 825,000 626,000 -2,377,000 622,000   -432,000 525,000 412,000 611,000 3,050,000    
          net cash from investing activities
        -48,706,000 150,081,000 -168,207,000 -174,228,000 -31,448,000 -577,770,000 -477,627,000 -300,589,000 172,477,000 225,303,000 43,898,000 135,509,000 -706,680,000 298,773,000 78,577,000 102,811,000 -19,837,000 -12,364,000 -708,034,000 -34,280,000 
          cash flows from financing activities:
                            
          proceeds from long-term debt
                   305,000,000     
          payments of debt issuance costs
        -225,000            -7,035,000     
          inducement payment for convertible note conversion
                            
          purchase of capped calls related to convertible notes
                            
          tax payments related to net settlement of share-based awards
        -1,746,000 -1,434,000 -855,000                 
          proceeds from exercise of stock options
        12,841,000 12,897,000 23,567,000 5,728,000 3,817,000 18,560,000 18,702,000 27,309,000 1,070,000 300,000 2,551,000 35,000 5,000 370,000 364,000 560,000 5,743,000 11,201,000 2,988,000 29,652,000 
          proceeds from joint venture contribution
                -1,000 2,020,000 471,000 522,000 53,000 1,021,000 250,000     
          net cash from financing activities
        8,171,000 364,034,000 22,133,000 4,873,000 3,817,000 18,560,000 18,702,000 27,309,000 1,069,000 2,320,000 2,551,000 506,000 527,000 423,000 1,385,000 298,775,000 12,973,000 11,201,000 2,988,000 1,211,550,000 
          increase in cash, cash equivalents and restricted cash equivalents
        631,368,000 -450,543,000 362,993,000 709,187,000   38,226,000 361,083,000 470,414,000 -921,643,000 211,973,000 550,730,000 -554,759,000 -249,165,000 294,429,000 964,435,000 27,615,000 -590,415,000 -649,709,000 1,494,961,000 
          cash, cash equivalents, restricted cash and cash equivalents—beginning of period
        1,551,118,000 1,891,971,000 1,580,497,000 1,125,557,000 843,105,000 
          cash, cash equivalents, restricted cash and cash equivalents—end of period
        631,368,000 -450,543,000 362,993,000 2,260,305,000 319,189,000 -1,059,351,000 38,226,000 2,253,054,000 470,414,000 -921,643,000 211,973,000 2,131,227,000 -554,759,000 -249,165,000 294,429,000 2,089,992,000 27,615,000 -590,415,000 -649,709,000 2,338,066,000 
          cash and cash equivalents
        625,286,000 -450,077,000 362,387,000 2,236,555,000 321,041,000 -1,062,009,000 37,355,000 2,230,799,000 470,524,000 -922,278,000 212,498,000 2,109,571,000 -554,335,000 -249,702,000 294,000,000 2,068,632,000 27,296,000 -594,841,000 -649,747,000 2,321,287,000 
          restricted cash and cash equivalents included in restricted deposits
        6,082,000 -466,000 606,000 23,750,000 -1,852,000 2,658,000 871,000 22,255,000 -110,000 635,000 -525,000 21,656,000 -424,000 537,000 429,000 21,360,000 319,000 4,426,000 38,000 16,779,000 
          total cash, cash equivalents and restricted cash and cash equivalents
        631,368,000 -450,543,000 362,993,000 2,260,305,000 319,189,000 -1,059,351,000 38,226,000 2,253,054,000 470,414,000 -921,643,000 211,973,000 2,131,227,000 -554,759,000 -249,165,000 294,429,000 2,089,992,000 27,615,000 -590,415,000 -649,709,000 2,338,066,000 
          supplemental disclosures:
                            
          interest payments
        1,268,000 155,000 11,206,000 154,000 11,211,000 11,211,000 151,000 11,118,000             
          income tax payments
        19,000 2,019,000   38,000 552,000               
          non-cash investing and financing activities:
                            
          conversion of convertible notes into common stock
                            
          net realized gain on sale of financial instruments
         -1,171,000 -12,000 -119,000          761,000 -74,000 582,000 59,000 -20,000 -135,000 -113,000 
          purchase of capped calls related to convertible senior subordinated notes
                            
          premium and other receivables
          39,415,000 -164,225,000             -14,742,000 -31,904,000 -9,778,000 -10,529,000 
          investment amortization, net of accretion
                  -7,953,000 -7,322,000 -1,658,000 997,000 1,219,000 1,922,000 2,541,000 2,461,000 1,955,000 1,074,000 
          maturity of investments
            81,783,000 66,173,000 335,410,000 261,428,000 390,554,000 308,159,000 380,967,000 330,486,000 150,243,000 221,890,000 155,492,000 105,842,000 66,440,000 183,152,000 46,903,000 134,199,000 
          decrease in cash, cash equivalents and restricted cash equivalents
                            
          net loss
                -149,838,000 -65,703,000 -15,425,000 -39,628,000 -226,560,000 -193,547,000 -112,125,000 -77,320,000 -198,242,000 -212,745,000 -73,068,000 -87,371,000 
          adjustments to reconcile net loss to net cash from operating activities:
                            
          loss on fair value of warrant liabilities
                        12,856,000 
          net amortization of investments
                -6,518,000            
          debt extinguishment loss
                        20,178,000 
          provision for credit losses
                            
          debt prepayment
                        -153,173,000 
          debt extinguishment costs
                        -12,994,000 
          proceeds from ipo, net of underwriting discounts
                        1,348,321,000 
          offering costs from ipo
                        -9,447,000 
          proceeds from exercise of warrants and call options
                        9,191,000 
          proceeds from partial sale of subsidiary to noncontrolling interest
                            
          convertible preferred stock and call option issuances
                            
          accrued investment income
                       1,198,000 -696,000 708,000 -2,349,000 417,000 
          balances due from reinsurance programs
                        -18,201,000 -13,615,000 -46,178,000 225,397,000 
          accounts payable and accrued liabilities
                        73,332,000 24,085,000 14,424,000 -13,222,000 
          other
                            
          stock repurchased
                            
          purchase of fixed maturity securities
                           -245,694,000