TOTAL VOLUME:

$154.2b

24H VOL:

$203,036,808

24H TRANSACTIONS:

2,984,028,936

OPEN INTEREST:

$1,857,846,526

408,774

Markets across

40,345

events

MATCHED EVENTS:

4,373

PLATFORM COVERAGE:

5

Polymarket:

37%

VS.

Kalshi:

63%

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TSA passenger screenings on Oct 21, 2026
kalshi

How many passengers will TSA screen?

Volume:
$39,893

At least 2,200,000 passengers

 - Kalshi

At least 2,200,000 passengers - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Oct 22, 2026

Closed: Oct 22, 6:59 AM EST

kalshi

Kalshi

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

At least 2,200,000 passengers

View
100%
Yes 100¢No 0¢
—
N/A
$1,860
N/A
N/A
$223
Settled
Yes
kalshi

At least 2,300,000 passengers

100%
50%
Yes 100¢No 0¢
—
N/A
$127
N/A
N/A
$124
Settled
Yes
kalshi

At least 2,400,000 passengers

0%
35%
Yes 0¢No 100¢
—
N/A
$24,749
N/A
N/A
$514
Settled
No
kalshi

At least 3,000,000 passengers

0%
Yes 0¢No 100¢
—
N/A
$12,228
N/A
N/A
$453
Settled
No
kalshi

At least 2,500,000 passengers

0%
26%
Yes 0¢No 100¢
—
N/A
$711
N/A
N/A
$268
Settled
No
kalshi

At least 2,700,000 passengers

0%
Yes 0¢No 100¢
—
N/A
$190
N/A
N/A
$188
Settled
No
kalshi

At least 2,600,000 passengers

0%
5%
Yes 0¢No 100¢
—
N/A
$21
N/A
N/A
$21
Settled
No
kalshi

At least 2,900,000 passengers

0%
Yes 0¢No 100¢
—
N/A
$7
N/A
N/A
$7
Settled
No
kalshi

At least 1,800,000 passengers

N/A
N/A
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

At least 1,900,000 passengers

N/A
N/A
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

At least 2,000,000 passengers

N/A
N/A
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

At least 2,100,000 passengers

N/A
N/A
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

At least 2,800,000 passengers

N/A
N/A
—
N/A
N/A
N/A
N/A
N/A
Settled
No
kalshi

At least 3,100,000 passengers

N/A
N/A
—
N/A
N/A
N/A
N/A
N/A
Settled
No
kalshi

At least 3,200,000 passengers

N/A
N/A
—
N/A
N/A
N/A
N/A
N/A
Settled
No
Total markets: 15

Description

These markets track the volume of passengers processed through Transportation Security Administration checkpoints on a specific future date. The outcome depends on comparing the officially reported passenger count against various thresholds. Each market corresponds to a different threshold, with higher thresholds representing more stringent conditions for a positive resolution.

Kalshi

All markets resolve based on the first published nationwide TSA passenger screening count for October 21, 2026, as reported on the TSA’s Passenger Volumes page. The exact count is used without rounding, and only the initial published figure counts—later corrections or revisions are disregarded. If data publication is delayed, resolution is postponed until the figure becomes available, subject to contract expiration or other contingencies. Each market has a unique threshold: resolution occurs if the reported count meets or exceeds that threshold. Thresholds range incrementally from 1,800,000 passengers up to 3,200,000 passengers across the various markets.

Frequently asked questions

On Kalshi, the dashboard for the TSA passenger screening market tracks the current odds, price history, and 24-hour trading volume. You’ll find a visual representation of how traders are pricing the likelihood of different passenger screening levels on October 21, 2026. Currently, the total volume for this market is $39,893, with $39,893 traded in the last 24 hours. This allows participants to gauge market sentiment and identify potential trading opportunities within this specific event.

Comparing prediction market odds to analyst forecasts reveals how collective intelligence differs from expert opinion. Often, this market demonstrates a unique perspective, potentially incorporating a wider range of factors than traditional analyses. While analysts may focus on macroeconomic indicators or historical trends, the market reflects real-time assessments of numerous variables, including unforeseen events. Discrepancies between the two can highlight overlooked risks or opportunities, offering a more nuanced understanding of the potential outcomes for TSA passenger screenings.

On Kalshi, this market is priced through a continuous double auction, where traders buy and sell contracts representing different potential outcomes for the number of passengers screened by the TSA on October 21, 2026. The price of each contract reflects the market’s probability assessment of that outcome. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate, the prices adjust, providing a dynamic and real-time estimate of the event’s likelihood. This mechanism allows for efficient price discovery based on the aggregated knowledge of all participants.

This market resolves around Oct 29, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The final number of passengers screened by the TSA on October 21, 2026, as officially reported by the Transportation Security Administration, will determine the outcome. This data will be sourced from publicly available information, ensuring transparency and objectivity in the resolution process. Traders will then be able to claim their winnings based on their positions in this market.

Several signals or events could significantly move this market. Major shifts in travel patterns due to economic conditions, geopolitical events, or public health concerns would likely impact passenger volumes. Changes in TSA policies, security threats, or large-scale events attracting significant travel to specific locations could also cause fluctuations. Unexpected weather events or disruptions to air travel infrastructure represent additional catalysts. Monitoring these factors will be crucial for understanding potential shifts in the market’s pricing and assessing trading opportunities.