Total Active Markets

Count of all non-resolved markets currently tracked across Polymarket, Kalshi, and Limitless.

127,377

Total Volume

Lifetime trading volume across all platforms. Polymarket and Kalshi report volume directly; Limitless volume is cumulative USDC traded.

$5,730,792,477

24h Volume

24-hour trading volume. Polymarket and Kalshi report this directly. Limitless does not break out 24h volume separately, so it is not included.

$561,247,558

Total Open Interest

Polymarket: sum of pool liquidity. Kalshi: open interest (contracts outstanding). Limitless: uses total volume as a proxy — no separate OI metric is available.

$3,243,297,991

Polymarket$2.87BOIOpen interest: sum of pool liquidity across all active markets, reported by the Polymarket API.

Kalshi$354.88MOIOpen interest: total contracts outstanding across all active markets, reported by the Kalshi API.

Limitless$23.03MOIOpen interest: estimated from total volume traded (USDC). Limitless does not report a separate OI metric.

Total Active Markets

Count of all non-resolved markets currently tracked across Polymarket, Kalshi, and Limitless.

127,377

Total Volume

Lifetime trading volume across all platforms. Polymarket and Kalshi report volume directly; Limitless volume is cumulative USDC traded.

$5,730,792,477

24h Volume

24-hour trading volume. Polymarket and Kalshi report this directly. Limitless does not break out 24h volume separately, so it is not included.

$561,247,558

Total Open Interest

Polymarket: sum of pool liquidity. Kalshi: open interest (contracts outstanding). Limitless: uses total volume as a proxy — no separate OI metric is available.

$3,243,297,991

Polymarket$2.87BOIOpen interest: sum of pool liquidity across all active markets, reported by the Polymarket API.

Kalshi$354.88MOIOpen interest: total contracts outstanding across all active markets, reported by the Kalshi API.

Limitless$23.03MOIOpen interest: estimated from total volume traded (USDC). Limitless does not report a separate OI metric.

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Number of TSA Passengers March 18?

Updated Today

Resolved

Winner: 2.2M-2.4Mon Mar 18, 2026

Volume:$51

View on Polymarket

Winner

2.2M-2.4M

$558 vol

100%

View on Polymarket

Frequently Asked Questions

What are the current odds for Number of TSA Passengers March 18??

As of March 18, 2026, the Polymarket odds for Number of TSA Passengers March 18? are: 2.2M-2.4M: 49%. These probabilities are derived from real-money trading and update in real time.

Where can I bet on Number of TSA Passengers March 18??

Number of TSA Passengers March 18? is currently available on Polymarket. Check PredictMarketCap for cross-platform availability as new markets are added regularly.

How are Number of TSA Passengers March 18? prediction market odds calculated?

Prediction market odds reflect the aggregate opinion of traders who risk real money on outcomes. The price of a share (e.g., 65¢) represents the market's implied probability (65%). Prices move as traders buy and sell based on new information, polls, and analysis.