~0.85 probability the CME CF Bitcoin Reference Rate settles below $90,000 on December 31 2026. BTC at ~$64k requires a +40% rally to breach the threshold. We calibrate at 0.85 — acknowledging crypto's documented +40%-in-a-quarter tail — not 0.92.
CME CF Bitcoin Reference Rate ~$64,198 on Jun 18 2026 (down 16.8% MoM / 38.8% YoY per TradingEconomics). Threshold $90,000 requires a +40% rally in ~6.5 months. Historical BTC has printed +40% in a single quarter — we calibrate at 0.85, not 0.92.
We lock a binary claim: the CME CF Bitcoin Reference Rate (BRR) daily 4pm London settlement on December 31 2026 is below $90,000. Confidence 0.85. The remaining 0.15 covers a +40%-plus BTC rally in the second half of 2026.
BTC closed ~$64,198 on June 18 2026 (CME CF BRR), down ~16.8% month-on-month. Reaching $90,000 requires a sustained +40% rally across ~6.5 months — a move that is not historically impossible for BTC but requires alignment of macro, ETF flow, and sentiment factors absent from the current bear tone. We set confidence at 0.85 rather than 0.92 specifically to respect crypto's documented ability to print +40% in a quarter; the tail deserves more than 8%. Resolves against the CME CF BRR daily publication on December 31 2026 (4pm London fix — BRR publishes daily including public holidays).
RAOSCAFF locks P-29 on 2026-06-21. Non-partisan, non-directional framing: the 85% reflects the current price level relative to the threshold, calibrated for crypto volatility.
CME CF BRR publishes daily including Dec 31 holidays — no date-slippage risk on resolution.