Bitcoin range·closes in 17h

Bitcoin price range on Sep 21, 2026?

YES means $81,250 to 81,499.99

24h volume
3,071
3,071 lifetime
Open interest
2,913
+2,913 over 24h
Spread
2,177 × 919 at the touch
24h range
7¢ – 10¢
43 recent trades
Chance of YES
9%

A YES contract costs 10¢ and pays $1 if it happens.

NO
91%

costs 92¢

YES bid / ask
/ 10¢
NO bid / ask
90¢ / 92¢
24h low 24h high 10¢
Recent buying87% YES · 13% 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.

0¢5¢10¢15¢volSep 20, 9:29 PMSep 21, 4:12 AM

Order book

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

Yes ask (no bid)SizeYes
  • ask5056¢
  • ask5040¢
  • ask1027¢
  • ask2117¢
  • ask1,78013¢
  • ask89012¢
  • ask6,87011¢
  • ask91910¢
spreadmid
  • bid2,177
  • bid1,760
  • bid5,000
  • bid300
  • bid250
  • bid333
  • bid250
  • bid7,877
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 between 81250-81499.99 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
81250
cap
81499.99
ticker
KXBTC-26SEP2117-B81375
Trade it on kalshi.com

Other outcomes in this event

Mutually exclusive: YES prices should add to about $1.00 (they add to 110¢).

Recent trades

Over the last 43 trades, 87% of contracts were bought on the YES side.

WhenYESContractsSide
7m ago15bought yes
8m ago1bought yes
14m ago3.21bought yes
19m ago1bought yes
23m ago41bought yes
23m ago2bought yes
23m ago100bought yes
23m ago2bought yes
23m ago100bought yes
23m ago10¢143bought yes
55m ago10bought yes
2h ago10bought yes
2h ago67bought yes
2h ago21bought yes
2h ago109bought 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.