Bitcoin price Above/below·closes in 17h

Bitcoin price on Sep 21, 2026?

YES means $81,000 or above

24h volume
21.3k
22.4k lifetime
Open interest
9,589
+8,122 over 7d
Spread
2,684 × 2,862 at the touch
24h range
43¢ – 73¢
50 recent trades
Chance of YES
58%

A YES contract costs 59¢ and pays $1 if it happens.

NO
42%

costs 42¢

YES bid / ask
58¢ / 59¢
NO bid / ask
41¢ / 42¢
24h low 43¢24h high 73¢
Recent buying33% YES · 67% 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.

40¢50¢60¢70¢volSep 20, 9:00 PMSep 21, 4:00 AM

Order book

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

Yes ask (no bid)SizeYes
  • ask30066¢
  • ask30065¢
  • ask30064¢
  • ask30063¢
  • ask68062¢
  • ask8,45661¢
  • ask3,65460¢
  • ask2,87259¢
spreadmid 59¢
  • bid2,68458¢
  • bid3,38957¢
  • bid9,47556¢
  • bid66855¢
  • bid27554¢
  • bid30053¢
  • bid30052¢
  • bid30051¢
Yes bid (no ask)SizeYes

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 80999.99 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
80999.99
ticker
KXBTCD-26SEP2117-T80999.99
Trade it on kalshi.com

Other outcomes in this event

Outcomes in this event settle independently.

Recent trades

Over the last 50 trades, 33% of contracts were bought on the YES side.

WhenYESContractsSide
27s ago58¢40bought no
5m ago60¢8.1bought yes
7m ago61¢61bought no
8m ago63¢0.01bought yes
8m ago63¢194bought yes
8m ago63¢59bought yes
9m ago63¢6.18bought yes
9m ago61¢184bought no
9m ago61¢547bought no
10m ago61¢16bought no
10m ago61¢200bought no
10m ago61¢378bought no
20m ago63¢89bought yes
21m ago63¢13bought no
31m ago64¢151bought 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.