Bitcoin price Above/below·closes in 18h

Bitcoin price on Sep 21, 2026?

YES means $79,500 or above

24h volume
7,913
7,913 lifetime
Open interest
5,768
Spread
2 × 2,699 at the touch
24h range
76¢ – 93¢
50 recent trades
Chance of YES
89%

A YES contract costs 90¢ and pays $1 if it happens.

NO
11%

costs 11¢

YES bid / ask
89¢ / 90¢
NO bid / ask
10¢ / 11¢
24h low 76¢24h high 93¢
Recent buying55% YES · 45% 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.

Yes ask (no bid)SizeYes
  • ask10097¢
  • ask10096¢
  • ask10095¢
  • ask43394¢
  • ask26693¢
  • ask8,94392¢
  • ask2,94891¢
  • ask2,69990¢
spreadmid 90¢
  • bid289¢
  • bid3,36588¢
  • bid2,17987¢
  • bid7,75286¢
  • bid10085¢
  • bid10084¢
  • bid20083¢
  • bid10082¢
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 79499.99 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
79499.99
ticker
KXBTCD-26SEP2117-T79499.99
Trade it on kalshi.com

Other outcomes in this event

Outcomes in this event settle independently.

Recent trades

Over the last 50 trades, 55% of contracts were bought on the YES side.

WhenYESContractsSide
6m ago89¢10bought no
1h ago87¢9.4bought yes
1h ago86¢37bought yes
1h ago85¢10bought yes
1h ago83¢10bought yes
1h ago83¢15bought yes
1h ago83¢5bought yes
1h ago82¢9.07bought no
1h ago82¢14bought no
1h ago87¢20bought no
1h ago87¢67bought no
1h ago87¢14bought no
2h ago88¢34bought no
2h ago88¢10bought no
2h ago90¢33bought no

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.