Bitcoin price Above/below·closes in 17h

Bitcoin price on Sep 21, 2026?

YES means $81,250 or above

24h volume
43.8k
43.8k lifetime
Open interest
11.2k
+10.8k over 7d
Spread
2,838 × 912 at the touch
24h range
38¢ – 69¢
50 recent trades
Chance of YES
52%

A YES contract costs 51¢ and pays $1 if it happens.

NO
48%

costs 50¢

YES bid / ask
50¢ / 51¢
NO bid / ask
49¢ / 50¢
24h low 38¢24h high 69¢
Recent buying42% YES · 58% 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¢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
  • ask30058¢
  • ask30057¢
  • ask78056¢
  • ask78055¢
  • ask4,24554¢
  • ask7,39453¢
  • ask3,52852¢
  • ask91251¢
spreadmid 51¢
  • bid2,83850¢
  • bid4,34249¢
  • bid4,44048¢
  • bid5,30047¢
  • bid30046¢
  • bid30045¢
  • bid30044¢
  • bid30043¢
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 81249.99 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
81249.99
ticker
KXBTCD-26SEP2117-T81249.99
Trade it on kalshi.com

This event

Outcomes in this event settle independently.

This is the only market in its event.

Recent trades

Over the last 50 trades, 42% of contracts were bought on the YES side.

WhenYESContractsSide
1m ago52¢39bought yes
1m ago52¢10bought yes
1m ago52¢386bought yes
4m ago50¢8.81bought no
6m ago53¢9.13bought yes
7m ago54¢5bought yes
7m ago52¢11bought no
7m ago54¢50bought yes
8m ago55¢87bought yes
9m ago55¢7.05bought yes
9m ago56¢3.17bought yes
9m ago56¢17bought yes
10m ago56¢11bought yes
10m ago56¢10bought yes
10m ago56¢41bought 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.