TOTAL VOLUME:

$134.2b

24H VOL:

$126,324,530

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,434,646,834

406,019

Markets across

30,401

events

MATCHED EVENTS:

2,689

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

BETA
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All
Crypto
BTC price range on Sep 21, 2026 at 5pm EDT?
kalshi

BTC price range on Sep 21, 2026 at 5pm EDT?

Volume:
$122,626

$86,750 to 86,999.99

 - Kalshi

$86,750 to 86,999.99 - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 21, 2026

Closed: Sep 21, 5:00 PM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

$86,750 to 86,999.99

View
100%
Yes 100¢No 0¢
100¢
N/A
$19,016
N/A
N/A
$9,982
Settled
Yes
kalshi

$86,500 to 86,749.99

0%
Yes 0¢No 100¢
100¢
N/A
$18,833
N/A
N/A
$4,686
Settled
No
kalshi

$87,000 to 87,249.99

0%
Yes 0¢No 100¢
100¢
N/A
$11,297
N/A
N/A
$4,880
Settled
No
kalshi

$86,000 to 86,249.99

0%
Yes 0¢No 100¢
100¢
N/A
$9,710
N/A
N/A
$2,536
Settled
No
kalshi

$85,750 to 85,999.99

0%
Yes 0¢No 100¢
100¢
N/A
$9,349
N/A
N/A
$4,220
Settled
No
kalshi

$86,250 to 86,499.99

0%
Yes 0¢No 100¢
100¢
N/A
$8,670
N/A
N/A
$4,125
Settled
No
kalshi

$85,000 to 85,249.99

0%
Yes 0¢No 100¢
100¢
N/A
$6,208
N/A
N/A
$3,799
Settled
No
kalshi

$87,250 to 87,499.99

0%
Yes 0¢No 100¢
100¢
N/A
$4,742
N/A
N/A
$1,912
Settled
No
kalshi

$81,000 to 81,249.99

0%
9%
Yes 0¢No 100¢
100¢
N/A
$3,981
N/A
N/A
$1,793
Settled
No
kalshi

$81,250 to 81,499.99

0%
Yes 0¢No 100¢
100¢
N/A
$3,352
N/A
N/A
$3,090
Settled
No
kalshi

$85,250 to 85,499.99

0%
Yes 0¢No 100¢
100¢
N/A
$3,156
N/A
N/A
$2,258
Settled
No
kalshi

$81,500 to 81,749.99

0%
Yes 0¢No 100¢
100¢
N/A
$3,155
N/A
N/A
$3,136
Settled
No
kalshi

$84,000 to 84,249.99

0%
Yes 0¢No 100¢
100¢
N/A
$2,591
N/A
N/A
$2,386
Settled
No
kalshi

$84,500 to 84,749.99

0%
Yes 0¢No 100¢
100¢
N/A
$2,473
N/A
N/A
$1,550
Settled
No
kalshi

$84,250 to 84,499.99

0%
Yes 0¢No 100¢
100¢
N/A
$2,199
N/A
N/A
$2,184
Settled
No
kalshi

$84,750 to 84,999.99

0%
Yes 0¢No 100¢
100¢
N/A
$2,145
N/A
N/A
$1,788
Settled
No
kalshi

$85,500 to 85,749.99

0%
Yes 0¢No 100¢
100¢
N/A
$1,473
N/A
N/A
$1,231
Settled
No
kalshi

$89,750 or above

0%
Yes 0¢No 100¢
100¢
N/A
$1,204
N/A
N/A
$864
Settled
No
kalshi

$82,000 to 82,249.99

0%
Yes 0¢No 100¢
100¢
N/A
$1,155
N/A
N/A
$796
Settled
No
kalshi

$81,750 to 81,999.99

0%
Yes 0¢No 100¢
100¢
N/A
$1,038
N/A
N/A
$500
Settled
No
kalshi

$87,500 to 87,749.99

0%
Yes 0¢No 100¢
100¢
N/A
$1,033
N/A
N/A
$1,029
Settled
No
kalshi

$83,500 to 83,749.99

0%
Yes 0¢No 100¢
100¢
N/A
$863
N/A
N/A
$863
Settled
No
kalshi

$80,500 to 80,749.99

0%
Yes 0¢No 100¢
100¢
N/A
$669
N/A
N/A
$416
Settled
No
kalshi

$82,750 to 82,999.99

0%
Yes 0¢No 100¢
100¢
N/A
$624
N/A
N/A
$624
Settled
No
kalshi

$87,750 to 87,999.99

0%
Yes 0¢No 100¢
100¢
N/A
$446
N/A
N/A
$240
Settled
No
Total markets: 25 of 80

Description

This event tracks Bitcoin's price performance at a specific future timestamp, using a standardized benchmark index to determine the outcome. The resolution depends on where the price falls within predefined ranges at the exact moment of evaluation.

Kalshi

All markets resolve based on the simple average of the sixty seconds of CF Benchmarks' Bitcoin Real-Time Index (BRTI) immediately before 5 PM EDT on September 21, 2026. Each market corresponds to a specific price range, and the market resolves to 'Yes' if the calculated average falls within that range. The official price is derived from averaging 60 RTI prices collected in the final minute before expiration. Participants should note that while public sources like Google or Coinbase may offer guidance, they do not determine the outcome—only the CF Benchmarks BRTI is authoritative for resolution purposes.