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Bitcoin price Above/below·closes in 17h

Bitcoin price on Sep 21, 2026?

YES means $84,000 or above

24h volume
5,977
6,806 lifetime
Open interest
6,177
+5,417 over 7d
Spread
2¢
3,184 × 2,471 at the touch
24h range
4¢ – 12¢
50 recent trades
Chance of YES
6%

A YES contract costs 6¢ and pays $1 if it happens.

NO
94%

costs 96¢

YES bid / ask
4¢ / 6¢
NO bid / ask
94¢ / 96¢
24h low 4¢24h high 12¢
Recent buying70% YES · 30% 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
0¢5¢10¢15¢volSep 20, 11:00 PMSep 21, 4:00 AM

Order book

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

Yes ask (no bid)SizeYes
  • ask90557¢
  • ask57547¢
  • ask1,04245¢
  • ask1,74444¢
  • ask1,00010¢
  • ask2,5148¢
  • ask7,2377¢
  • ask2,4716¢
spread2¢mid 5¢
  • bid3,1834¢
  • bid8,3203¢
  • bid3,5032¢
  • bid5511¢
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 83999.99 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
83999.99
ticker
KXBTCD-26SEP2117-T83999.99
Trade it on kalshi.com

Other outcomes in this event

Outcomes in this event settle independently.

Recent trades

Over the last 50 trades, 70% of contracts were bought on the YES side.

WhenYESContractsSide
2m ago6¢400bought yes
2m ago6¢424bought yes
4m ago5¢3.26bought no
4m ago6¢2bought no
59m ago6¢18bought no
1h ago6¢180bought no
1h ago6¢200bought no
1h ago6¢200bought no
1h ago6¢200bought no
2h ago6¢200bought no
2h ago7¢95bought no
2h ago8¢210bought yes
2h ago8¢587bought yes
3h ago7¢175bought no
3h ago7¢93bought 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.