Disclaimer
Last updated: July 1, 2026 (first draft — pending legal review)
Second Opinion is an analytics tool that produces independent probability estimates. It does not place trades and it is not financial or betting advice.
Estimates only — not advice
Second Opinion produces independent, simulation-backed probability estimates for prediction-market questions. These estimates are for informational and analytical purposes only. They are not financial, investment, legal, tax, or betting advice, and they are not a recommendation to buy, sell, or hold any position on any venue. Prediction markets are speculative and you can lose money. Our estimates may be wrong, and past calibration does not guarantee future accuracy. Always do your own research and consider consulting a licensed professional before making any financial decision. You are solely responsible for your own decisions.
Geographic & regulatory · Read-only analysis, no trading
Second Opinion is an analytics product. We do not place trades, hold funds, or facilitate order placement on any venue. We provide independent estimates over publicly available market data.
Geographic & regulatory · Polymarket
Polymarket is an on-chain prediction market. On-chain trading on Polymarket is blocked for U.S. persons. Second Opinion uses Polymarket's public data for READ-ONLY analysis only — we do not enable, route, or facilitate any Polymarket trading. Displaying Polymarket data is not an invitation to trade there.
Geographic & regulatory · Kalshi
Kalshi is a prediction-market exchange regulated in the United States by the Commodity Futures Trading Commission (CFTC). Trading on Kalshi is subject to Kalshi's own eligibility rules, terms, and jurisdiction restrictions. Any trading you do occurs directly with Kalshi, not through Second Opinion.
Geographic & regulatory · Your responsibility
You are responsible for determining whether using prediction markets is legal in your jurisdiction and for complying with the rules of any venue you choose to use.
Data retention · Account data
Retained for as long as your account is active. After you close your account, we delete or anonymize account data within 90 days, except where a longer period is required by law.
Data retention · Usage and simulation history
Simulation requests and results tied to your account are retained for up to 24 months to power your history and our calibration record, then deleted or anonymized.
Data retention · Technical logs
Security and diagnostic logs are retained for up to 90 days, then rotated out.
Data retention · Aggregated / anonymized data
Aggregated or anonymized data that can no longer identify you — including our public Brier-score calibration track record — may be retained indefinitely.