TOTAL VOLUME:

$134.1b

24H VOL:

$113,466,932

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,423,222,590

402,751

Markets across

30,217

events

MATCHED EVENTS:

2,632

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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BTC price range on Sep 18, 2026 at 5pm EDT?
kalshi

BTC price range on Sep 18, 2026 at 5pm EDT?

Volume:
$195,989

$81,000 to 81,499.99

 - Kalshi

$81,000 to 81,499.99 - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 18, 2026

Closed: Sep 18, 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

$81,000 to 81,499.99

View
100%
98%
Yes 100¢No 0¢
100¢
N/A
$29,544
N/A
N/A
$18,855
Settled
Yes
kalshi

$80,500 to 80,999.99

View
0%
3%
Yes 0¢No 100¢
100¢
N/A
$18,599
N/A
N/A
$6,427
Settled
No
kalshi

$81,500 to 81,999.99

View
0%
Yes 0¢No 100¢
100¢
N/A
$16,633
N/A
N/A
$8,921
Settled
No
kalshi

$77,500 to 77,999.99

View
0%
7%
Yes 0¢No 100¢
100¢
N/A
$16,050
N/A
N/A
$8,237
Settled
No
kalshi

$77,000 to 77,499.99

View
0%
15%
Yes 0¢No 100¢
100¢
N/A
$16,049
N/A
N/A
$6,211
Settled
No
kalshi

$76,500 to 76,999.99

View
0%
16%
Yes 0¢No 100¢
100¢
N/A
$13,050
N/A
N/A
$5,624
Settled
No
kalshi

$78,500 to 78,999.99

View
0%
5%
Yes 0¢No 100¢
100¢
N/A
$13,025
N/A
N/A
$9,302
Settled
No
kalshi

$76,000 to 76,499.99

View
0%
17%
Yes 0¢No 100¢
100¢
N/A
$8,811
N/A
N/A
$3,826
Settled
No
kalshi

$80,000 to 80,499.99

View
0%
1%
Yes 0¢No 100¢
100¢
N/A
$8,234
N/A
N/A
$4,660
Settled
No
kalshi

$78,000 to 78,499.99

View
0%
5%
Yes 0¢No 100¢
100¢
N/A
$8,159
N/A
N/A
$3,900
Settled
No
kalshi

$79,000 to 79,499.99

View
0%
3%
Yes 0¢No 100¢
100¢
N/A
$6,301
N/A
N/A
$3,163
Settled
No
kalshi

$82,000 to 82,499.99

View
0%
Yes 0¢No 100¢
100¢
N/A
$6,203
N/A
N/A
$3,919
Settled
No
kalshi

$75,000 to 75,499.99

View
0%
4%
Yes 0¢No 100¢
100¢
N/A
$6,130
N/A
N/A
$1,877
Settled
No
kalshi

$79,500 to 79,999.99

View
0%
2%
Yes 0¢No 100¢
100¢
N/A
$5,472
N/A
N/A
$4,167
Settled
No
kalshi

$75,500 to 75,999.99

View
0%
12%
Yes 0¢No 100¢
100¢
N/A
$5,027
N/A
N/A
$3,255
Settled
No
kalshi

$74,500 to 74,999.99

View
0%
3%
Yes 0¢No 100¢
100¢
N/A
$3,939
N/A
N/A
$2,295
Settled
No
kalshi

$74,000 to 74,499.99

View
0%
6%
Yes 0¢No 100¢
100¢
N/A
$3,443
N/A
N/A
$1,228
Settled
No
kalshi

$82,500 to 82,999.99

View
0%
Yes 0¢No 100¢
100¢
N/A
$1,821
N/A
N/A
$1,400
Settled
No
kalshi

$73,000 to 73,499.99

View
0%
7%
Yes 0¢No 100¢
100¢
N/A
$1,769
N/A
N/A
$1,769
Settled
No
kalshi

$72,500 to 72,999.99

View
0%
4%
Yes 0¢No 100¢
100¢
N/A
$1,364
N/A
N/A
$1,362
Settled
No
kalshi

$73,500 to 73,999.99

View
0%
4%
Yes 0¢No 100¢
100¢
N/A
$989
N/A
N/A
$275
Settled
No
kalshi

$89,000 or above

View
0%
3%
Yes 0¢No 100¢
100¢
N/A
$982
N/A
N/A
$982
Settled
No
kalshi

$83,000 to 83,499.99

View
0%
Yes 0¢No 100¢
100¢
N/A
$944
N/A
N/A
$560
Settled
No
kalshi

$83,500 to 83,999.99

View
0%
Yes 0¢No 100¢
100¢
N/A
$781
N/A
N/A
$436
Settled
No
kalshi

$87,000 to 87,499.99

View
0%
2%
Yes 0¢No 100¢
100¢
N/A
$721
N/A
N/A
$721
Settled
No
Total markets: 25 of 50

Description

This event determines the price range of Bitcoin on a specific date and time by evaluating its average value against predefined brackets. The outcome depends solely on where the calculated average falls within these ranges at the exact moment of evaluation.

Kalshi

The event resolves based on the simple average of the sixty seconds of CF Benchmarks' Bitcoin Real-Time Index (BRTI) immediately before 5 PM EDT on September 18, 2026. Each market corresponds to a specific price range, and the market that matches the calculated average resolves to 'Yes,' with all others resolving to 'No.' The official price is derived from averaging 60 BRTI prices collected in the final minute before expiration. Participants should note that this index may differ from consumer-facing sources like Google or Coinbase, and the average must be strictly within the defined range for resolution.