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Will Oscar Health maintain a quota share reinsurance ceding ratio of at least 50% for plan year 2027?

Resolves January 31, 2027(312d)
IG: 0.48

Current Prediction

63%
Likely Yes
Model Agreement94%
Predictions9 runs
Last UpdatedMarch 22, 2026

Why This Question Matters

The 55% quota share ratio is critical to Oscar's capital efficiency — reducing capital requirements from ~$110M to ~$50M per $1B premiums. If reinsurers tighten terms or reduce the ceding ratio for 2027, Oscar's capital requirements could nearly double. This market tests whether the capital position flagged as STRETCHED by the Stress Scanner faces additional pressure from the reinsurance market.

FUNDING_FRAGILITYCAPITAL_DEPLOYMENT

Prediction Distribution

0%25%50%75%100%
opus
sonnet
haiku
Range: 58%68%Aggregate: 63%
Individual Predictions(9 runs)
opusRun 1
65%

Reinsurance relationships tend to be sticky — reinsurers don't typically slash ceding ratios dramatically year-over-year. Oscar's rapid premium growth ($11.7B to $19B) makes it a larger and more strategically important account for reinsurers. The reinsurance industry has ample capacity currently. While Oscar's unprofitable FY2025 may cause reinsurers to increase pricing, reducing the ceding ratio below 50% would be an extreme step. More likely: maintained ratio with higher pricing. The 50% threshold provides buffer below the current 55%.

Reinsurance relationships are stickyOscar is a large and growing account50% threshold provides 5pp buffer
opusRun 2
62%

The reinsurance market for ACA health insurance is different from catastrophe reinsurance — it's more like a financial arrangement to manage capital requirements. Reinsurers are compensated through premium ceding with expected returns. Oscar's FY2025 loss was driven by risk adjustment, not excessive medical claims — reinsurers' direct exposure is to the retained portion of medical claims, not risk adjustment payable. This distinction may actually protect the ceding ratio. However, if Oscar's loss patterns suggest systemic mispricing, reinsurers may tighten terms. Above 60%.

Risk adjustment losses don't directly hit reinsurersACA quota share is financial arrangement for capital managementLoss patterns may signal mispricing concern
opusRun 3
58%

The question is about 2027 plan year terms, which are typically negotiated in mid-late 2026. If Oscar's 2026 results are tracking toward profitability by mid-year, reinsurers would have less reason to tighten. If 2026 is tracking toward another loss year, reinsurers may demand better terms. The 50% threshold is lower than the current 55%, providing buffer. However, reinsurers may choose to reduce exposure to the ACA market broadly if the subsidy cliff creates instability. Around 58%.

2027 terms depend on 2026 mid-year performance50% threshold below current 55%Broad ACA market instability may concern reinsurers
sonnetRun 1
68%

Reinsurance ceding ratios are negotiated relationships, not market-cleared prices. Oscar maintains relationships with a 'top-tier bank syndicate' for credit and presumably similar quality reinsurers. These relationships have institutional momentum. The 55% ratio has been in place for multiple years. Cutting below 50% would be unusual without a fundamental credit event. Oscar's capital raise of $885M in 2025 demonstrates capital market confidence. Lean YES at nearly 70%.

Institutional relationship momentum55% ratio established over multiple yearsCapital market confidence demonstrated
sonnetRun 2
60%

The primary risk to reinsurance terms is Oscar's track record — if 2026 also underperforms, reinsurers may fundamentally reassess Oscar as a counterparty. However, the question is about the 50% threshold, not maintaining the full 55%. Reinsurers might reduce from 55% to 52% (still resolves YES) while increasing pricing. The more likely negative scenario is pricing increases rather than ceding ratio reductions. Around 60%.

More likely pricing increase than ratio reduction50% threshold below current 55%Two consecutive loss years would be concerning
sonnetRun 3
63%

Quota share reinsurance in ACA is a standard capital management tool. Multiple carriers use similar arrangements. The reinsurance market has adequate capacity and Oscar's growing premium base makes it an attractive account. Even with FY2025 losses, the expected FY2026 profitability guidance would reassure reinsurers. The 50% threshold provides reasonable buffer. Lean YES.

Standard capital management toolOscar is attractive account due to premium growthFY2026 guidance reassures reinsurers
haikuRun 1
66%

Reinsurance relationships are sticky. 50% threshold is below current 55%. Reinsurers more likely to adjust pricing than ceding ratio. Lean YES.

Sticky relationshipsBuffer from current ratioPricing adjustment more likely
haikuRun 2
62%

Oscar is a large and growing reinsurance account. The 50% threshold provides buffer. Reinsurance market has capacity. FY2025 loss is concerning but not unusual for ACA carriers in a reset year. Lean YES at about 62%.

Large growing accountAdequate reinsurance market capacityIndustry-wide context mitigates Oscar-specific concern
haikuRun 3
64%

The base rate for major reinsurance ceding ratio cuts year-over-year is low. The 50% threshold with current 55% provides meaningful buffer. Most likely outcome: similar ratio with modest pricing adjustment. Lean YES.

Low base rate for major ratio cuts5pp bufferModest pricing adjustment is most likely

Resolution Criteria

Resolves YES if Oscar Health's 2027 plan year reinsurance arrangements maintain a quota share ceding ratio of 50% or above, as disclosed in earnings calls, 10-K filings, or investor presentations. Resolves NO if the ceding ratio falls below 50% or if management discloses materially tightened reinsurance terms.

Resolution Source

Oscar Health FY2026 10-K filing, Q4 2026 or Q1 2027 earnings call

Source Trigger

Reinsurance terms for 2027 — The 55% quota share ratio is critical element of capital efficiency. If reinsurers tighten terms or increase pricing, Oscar's capital requirements could increase materially.

stress-scannerFUNDING_FRAGILITYMEDIUM
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