88% — Will OpenAI's valuation hit __ by December 31?: ↑$2.0T
Leader: ↑$900B at 88% · Polymarket 88% · 15 contracts · $5K volume · medium confidence
Updated 2026-06-15 10:43:57 UTC

Tracks the leading outcome in a winner-take-all prediction market set with 15 outcomes.

Why this matters:
This market estimates an 88% probability that OpenAI's valuation will exceed $900 billion by year-end 2026. The high confidence reflects recent funding rounds and AI industry momentum, though the outcome depends heavily on OpenAI's reported financial metrics, user adoption figures, and broader venture capital conditions over the next six months. Uncertainty around whether the company pursues additional funding, achieves specific revenue milestones, or faces regulatory headwinds could shift the probability materially. The most immediate catalyst will likely be OpenAI's next reported financial results or any announced funding event, which would provide concrete valuation data to resolve market estimates.

Key factors:
- OpenAI's actual reported revenue and profitability metrics for H1 2026, which directly inform investor valuations in subsequent funding rounds
- Market appetite for AI infrastructure investment and venture capital deployment levels through December 2026, which determines available capital for late-stage rounds
- Regulatory developments affecting large AI labs, including any U.S. or international restrictions that could impact perceived company value
- Competitive pressures from other AI labs (Anthropic, Google DeepMind, etc.) and whether OpenAI maintains pricing power and market share assumptions
- Timeline and terms of any announced funding round by OpenAI before year-end, which would establish formal valuation milestones

Contracts:
- Will OpenAI's valuation hit __ by December 31?: ↑$900B — 88¢ Polymarket $323 (weight 6%)
- Will OpenAI's valuation hit __ by December 31?: ↑$1.0T — 82¢ Polymarket $1K (weight 21%)
- Will OpenAI's valuation hit __ by December 31?: ↑$1.25T — 64¢ Polymarket $98 (weight 2%)
- Will OpenAI's valuation hit __ by December 31?: ↓$800B — 63¢ Polymarket $47 (weight 1%)
- Will OpenAI's valuation hit __ by December 31?: ↑$1.5T — 56¢ Polymarket $60 (weight 1%)
- Will OpenAI's valuation hit __ by December 31?: ↓$750B — 53¢ Polymarket $0 (weight 0%)
- Will OpenAI's valuation hit __ by December 31?: ↑$1.75T — 41¢ Polymarket $250 (weight 5%)
- Will OpenAI's valuation hit __ by December 31?: ↓$700B — 38¢ Polymarket $6 (weight 0%)
- ... and 7 more

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## Methodology

SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours.

## SF Signal

- SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration.
- No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only.

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*Last verified: 2026-06-15T10:20:44.942Z*

By SimpleFunctions — https://simplefunctions.dev/

Cite as: "88% per prediction markets (SimpleFunctions, June 2026)"
Canonical: https://simplefunctions.dev/answer/openais-valuation-hit-december-31
Full data: https://simplefunctions.dev/api/public/query?q=Will%20OpenAI's%20valuation%20hit%20__%20by%20December%2031%3F%3A%20%E2%86%91%242.0T
Provider: SimpleFunctions — https://simplefunctions.dev