Bitcoin price Above/below·closes in 18h

Bitcoin price on Sep 21, 2026?

YES means $82,000 or above

24h volume
28.4k
28.4k lifetime
Open interest
10.6k
Spread
2,570 × 2,376 at the touch
24h range
18¢ – 50¢
50 recent trades
Chance of YES
35%

A YES contract costs 32¢ and pays $1 if it happens.

NO
65%

costs 69¢

YES bid / ask
31¢ / 32¢
NO bid / ask
68¢ / 69¢
24h low 18¢24h high 50¢
Recent buying60% YES · 40% 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
  • ask30039¢
  • ask30038¢
  • ask30037¢
  • ask30036¢
  • ask3,50135¢
  • ask8,95534¢
  • ask3,27933¢
  • ask10032¢
spreadmid 31¢
  • bid2,59031¢
  • bid3,50030¢
  • bid3,77329¢
  • bid5,30028¢
  • bid30027¢
  • bid30026¢
  • bid40025¢
  • bid30024¢
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 81999.99 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
81999.99
ticker
KXBTCD-26SEP2117-T81999.99
Trade it on kalshi.com

Other outcomes in this event

Outcomes in this event settle independently.

Recent trades

Over the last 50 trades, 60% of contracts were bought on the YES side.

WhenYESContractsSide
11m ago35¢61bought yes
15m ago33¢690bought yes
16m ago32¢10bought yes
16m ago32¢100bought yes
18m ago33¢100bought yes
19m ago33¢100bought yes
24m ago30¢11bought no
24m ago30¢14bought no
24m ago31¢58bought yes
43m ago32¢5bought yes
44m ago35¢240bought no
46m ago35¢10bought no
50m ago35¢6bought no
53m ago35¢10bought yes
53m ago35¢9.11bought 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.