PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedData quality warningStale data
Data as of Nov 13, 2026, 10:55 AM UTC · policy pm-quality-4
Selected book midpoint
1.00 to 2.99 · —
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Stored reference
1.00 to 2.99 81.7%Leader of 5 outcomesVig-adjusted: raw venue quotes summed above 100% and were normalized.
1.00 to 2.99 81.7%Market quality
57 / 100
Medium quality24h Volume
$754.1
Liquidity
$8.6K
Medium liquidityOpen interest
$10.9K
Bid / Ask
— / —
1.00 to 2.99Spread
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Comments
0
7d Change
-10.5 pts
Market data
Updated 1 hour ago
LaggingSep 22, 26, 7:15 PM UTCDec 2, 26, 4:59 AM UTC
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Minimum order (shares):
- 5
- Tick size:
- 0.1 percentage points
- Fees:
- Yes
Top holders
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Market depth · 1.00 to 2.99
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Related questions for context, not a comparison of equivalent contracts.
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KalshiRules
This market will resolve according to the lowest gage height (river level), in feet, recorded at the Mississippi River at St. Louis, MO streamgage (USGS site 07010000) between market creation and November 30, 2026, as published by the United States Geological Survey (USGS) for parameter code 00065 under statistic code 30800.
- Exactly one outcome in this market will resolve to "Yes".
- The lowest daily reading in the window decides this market; the level does not need to be sustained.
- If USGS does not publish a reading for one or more days, this market will resolve according to the lowest reading among the days that are published.
- Values will be used exactly as published by USGS, without rounding.
- USGS reports gage height at this gage to 2 decimal places.