Will the price of XRP be above $1.40 on September 24?
Crossbook compares what two exchanges, Polymarket and Kalshi, charge for the same event, and publishes a permanent scored record of its own forecasts under published rules.
Tracked on one venue, with Crossbook's own call on the record.
Bid/ask midpoint · retrieved 2026-09-24T13:50:27.016Z. Venue quote-update time is unavailable. Readings can be asynchronous.
99.4%bid 99.1% / ask 99.7%24h volume $2K · liquidity $22Kas of 24 Sept, 13:50 UTC · not refreshed recentlyView on PolymarketCrossbook forecast
Logged 20 Sept 2026, 12:44 UTC · Brier 0.6084
- Spot is 1.3179, so resolution requires a close above 1.40 — a ~6.2% rally within 4 days, a meaningful but far from impossible move for a large-cap altcoin.
- Using XRP's typical daily volatility of ~3-4%, four-day volatility is ~6-8%, putting the strike roughly 0.8-1.0 standard deviations above spot, which under a lognormal-with-fat-tails view implies a YES probability near 0.18-0.25.
- The resolution is a single 1-minute candle close at noon ET on Binance, not a sustained level, so only the price path endpoint matters; no scheduled catalyst before Sept 24 was identified, so drift is likely noise-dominated rather than event-driven.
- Time decay is unfavorable to YES: with only 4 days left and price below the strike, the market needs an actual rally rather than merely holding current levels.
What would change it: A sharp XRP rally over the next 1-3 days (e.g., driven by broad crypto market strength or XRP-specific news) pushing spot toward or above 1.40 would move this estimate toward 0.5 or higher.
Settlement source-16.0 probability points from the market at generation · med confidence · Polymarket
Base rate: From general knowledge of crypto binary markets and lognormal price behavior, point-in-time binaries struck ~6% above spot with ~4 days to expiry resolve YES roughly 15-25% of the time; no retrieved fact carries a rate for this class.
Settlement
Every answer this call has been given, oldest first. Nothing is edited: a correction is a new entry beside the one it replaces.
YESsettled 25 Sept 2026, 21:26 UTC · recorded 25 Sept 2026, 21:26 UTC · entered by handsettlement
What this call was reading
- Binance spot XRP/USDT displayed a price of 1.3179 USDT on September 18, 2026. as of 2026-09-18 · binance.com · within 14 days of this call
- The referenced instrument is the Binance spot XRP/USDT trading pair. as of 2026-09-18 · binance.com · within 14 days of this call
Context
Polymarket prices this at 99.4%. No verified equivalent is currently listed on the other venue, so there is no cross venue comparison on this page.
Volume over the last 24 hours is thin, at about $2,408 on the busier venue.
This market has settled. The page is kept as a record of what the market said while the question was open, and of what Crossbook called.
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Crossbook publishes every forecast it makes, timestamped before the answer is known and scored against the market afterwards. See the public record and the rules it is held to.
This call is line t-0205 of the public append-only ledger, committed when it was published. It appears on the record alongside every other call, resolved and open.