Bitcoin price Above/below·closes in 16h

Bitcoin price on Sep 21, 2026?

YES means $81,750 or above

24h volume
27.5k
31.2k lifetime
Open interest
12.3k
+12.3k over 24h
Spread
533 × 2,691 at the touch
24h range
22¢ – 57¢
50 recent trades
Chance of YES
37%

A YES contract costs 39¢ and pays $1 if it happens.

NO
63%

costs 63¢

YES bid / ask
37¢ / 39¢
NO bid / ask
61¢ / 63¢
24h low 22¢24h high 57¢
Recent buying39% YES · 61% 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.

20¢30¢40¢50¢60¢volSep 20, 8:46 PMSep 21, 4:38 AM

Order book

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

Yes ask (no bid)SizeYes
  • ask34645¢
  • ask30044¢
  • ask30043¢
  • ask30042¢
  • ask1,20041¢
  • ask9,09440¢
  • ask2,69139¢
  • ask2,84138¢
spreadmid 38¢
  • bid2,61237¢
  • bid4,65636¢
  • bid2,89935¢
  • bid5,30434¢
  • bid30033¢
  • bid30032¢
  • bid30031¢
  • bid30030¢
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 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, 39% of contracts were bought on the YES side.

WhenYESContractsSide
2m ago37¢377bought no
2m ago37¢2bought no
2m ago37¢875bought no
2m ago37¢400bought no
2m ago37¢2,000bought no
21m ago38¢2bought no
21m ago37¢230bought no
33m ago39¢121bought yes
34m ago39¢5bought yes
34m ago40¢45bought yes
53m ago42¢46bought yes
1h ago43¢111bought yes
1h ago43¢46bought no
1h ago39¢9bought no
1h ago41¢37bought 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.