Bitcoin price Above/below·closes in 17h

Bitcoin price on Sep 21, 2026?

YES means $81,750 or above

24h volume
27.1k
27.1k lifetime
Open interest
14.5k
Spread
2 × 3,419 at the touch
24h range
22¢ – 57¢
50 recent trades
Chance of YES
42%

A YES contract costs 40¢ and pays $1 if it happens.

NO
58%

costs 61¢

YES bid / ask
39¢ / 40¢
NO bid / ask
60¢ / 61¢
24h low 22¢24h high 57¢
Recent buying81% YES · 19% NO
What Galdor thinks

An independent read of this market

1Reads the rules literallySettlement source, close time, and the edge cases that flip an outcome.
2Checks the tape and the webOrder book, flow, price history, then targeted searches with sources.
3Gives a straight answerA probability with a band, and one of four calls: YES, NO, wait, or stay out.

Generated by an AI analyst from live exchange data and public web sources. Research and analytics, not investment advice. Markets can move after this was written.

Price history

YES price per candle with the bid/ask band, volume underneath. Times in UTC.

Not enough history to chart.

Order book

Resting orders, both sides shown as YES prices. Bars are size.

Order book unavailable.

How this market resolves

Verbatim from Kalshi. Read this before the price.

If the simple average of the sixty seconds of CF Benchmarks' Bitcoin Real-Time Index (BRTI) before 5 PM EDT is above 81749.99 at 5 PM EDT on Sep 21, 2026, then the market resolves to Yes.

Not all cryptocurrency price data is the same. While checking a source like Google or Coinbase may help guide your decision, the price used to determine this market is based on CF Benchmarks' corresponding Real Time Index (RTI). At the last minute before expiration, 60 RTI prices are collected. The official and final value is the average of these prices.

Settlement sources
opened
Sep 20 · 8:00 PM UTC
closes
Sep 21 · 9:00 PM UTC · may close early
settles by
Sep 21 · 9:05 PM UTC
floor
81749.99
ticker
KXBTCD-26SEP2117-T81749.99
Trade it on kalshi.com

Other outcomes in this event

Outcomes in this event settle independently.

Recent trades

Over the last 50 trades, 81% of contracts were bought on the YES side.

WhenYESContractsSide
7m ago42¢46bought yes
14m ago43¢111bought yes
20m ago43¢46bought no
24m ago39¢9bought no
30m ago41¢37bought yes
34m ago40¢11bought yes
52m ago39¢25bought yes
53m ago38¢12bought yes
53m ago37¢1.53bought no
55m ago40¢96bought yes
60m ago36¢10bought no
60m ago36¢18bought no
60m ago36¢2bought no
1h ago38¢2.52bought yes
1h ago36¢263bought yes

Prices are YES cost in cents and approximate the market’s implied probability. Data is read live from the Kalshi Trade API on every page load. galdor.xyz places no orders and holds no positions. Research and analytics, not investment advice.