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Bitcoin price Above/below·closes in 18h

Bitcoin price on Sep 21, 2026?

YES means $83,000 or above

24h volume
6,356
6,456 lifetime
Open interest
5,280
Spread
1¢
202 × 3,195 at the touch
24h range
–
50 recent trades
Chance of YES
14%

A YES contract costs 14¢ and pays $1 if it happens.

NO
86%

costs 87¢

YES bid / ask
13¢ / 14¢
NO bid / ask
86¢ / 87¢
Recent buying71% YES · 29% 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.

24h7d30d90d
Not enough history to chart.

Order book

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

Yes ask (no bid)SizeYes
  • ask30021¢
  • ask30020¢
  • ask30019¢
  • ask30018¢
  • ask5,30017¢
  • ask2,35616¢
  • ask2,48215¢
  • ask3,19514¢
spread1¢mid 14¢
  • bid2,21213¢
  • bid3,41012¢
  • bid7,47911¢
  • bid50010¢
  • bid1,3009¢
  • bid3008¢
  • bid4007¢
  • bid3006¢
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 82999.99 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
82999.99
ticker
KXBTCD-26SEP2117-T82999.99
Trade it on kalshi.com

Other outcomes in this event

Outcomes in this event settle independently.

Recent trades

Over the last 50 trades, 71% of contracts were bought on the YES side.

WhenYESContractsSide
38s ago14¢10bought yes
38s ago14¢90bought yes
1h ago15¢10bought no
1h ago15¢25bought yes
1h ago12¢10bought no
1h ago12¢10bought no
1h ago12¢10bought no
1h ago12¢10bought no
1h ago12¢10bought no
1h ago12¢10bought no
1h ago12¢10bought no
1h ago12¢10bought no
1h ago12¢10bought no
1h ago12¢10bought no
2h ago18¢5bought 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.