The Prediction Markets

Lowest Great Salt Lake elevation in 2026?

Closes
Jan 2, 2027, in 2 months
Traded
$45K
Venues
Polymarket
Prices updated
1 min ago
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What the markets expect

4,189.3 or 4,189.4 ft 84.6%

Next is Below 4,189.3 ft at 11.9%. Only Polymarket lists this market, so there is no second price to compare.

4,189.3 or 4,189.4 ft 84.6%Below 4,189.3 ft 11.9%4,189.5 or 4,189.6 ft 3.1%4,189.7 ft or more 0.4%

Odds by venue

Fair chance strips out each venue’s built-in margin (its prices add up to more than 100%), then blends the venues by how much has traded there, so the outcomes add up to 100%. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.

Prices come from our regular polls of each venue, the oldest 1 min ago. Ages are as of when this page was built.

  • Polymarket
4,189.3 or 4,189.4 ft
84.6%
Polymarket 83.5%(84.6% fair)polled, 1 min agoBest Yes 85¢ on Polymarket, $100 pays $118 (1.18x)
Polymarket
Contract
4,189.3 or 4,189.4 ft
Last price
83.5%
Fair, margin removed
84.6%
As of
Polled 1 min ago
Buy Yes
85¢
Sell Yes
82¢
$100 on Yes pays
$118 (1.18x)
Volume
$14K
Trade this on Polymarket
Below 4,189.3 ft
11.9%
Polymarket 11.8%polled, 1 min agoBest Yes 15.6¢ on Polymarket, $100 pays $641 (6.41x)
Polymarket
Contract
Below 4,189.3 ft
Last price
11.8%
As of
Polled 1 min ago
Buy Yes
15.6¢
Sell Yes
8¢
$100 on Yes pays
$641 (6.41x)
Volume
$15K
Trade this on Polymarket
4,189.5 or 4,189.6 ft
3.1%
Polymarket 3.1%polled, 1 min agoBest Yes 6¢ on Polymarket, $100 pays $1,667 (16.7x)
Polymarket
Contract
4,189.5 or 4,189.6 ft
Last price
3.1%
As of
Polled 1 min ago
Buy Yes
6¢
Sell Yes
0.2¢
$100 on Yes pays
$1,667 (16.7x)
Volume
$13K
Trade this on Polymarket
4,189.7 ft or more
0.4%
Polymarket 0.4%polled, 1 min agoBest Yes 0.7¢ on Polymarket, $100 pays $14,286 (143x)
Polymarket
Contract
4,189.7 ft or more
Last price
0.4%
As of
Polled 1 min ago
Buy Yes
0.7¢
Sell Yes
—
$100 on Yes pays
$14,286 (143x)
Volume
$4K
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle, source: waterservices.usgs.gov

How the odds have moved

The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.

  • 4,189.3 or 4,189.4 ft
  • Below 4,189.3 ft
  • 4,189.5 or 4,189.6 ft

Order books

Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.

Top of book

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Best bid
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Spread
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Best ask
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Depth · top 8 levels

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Recent trades

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What your stake buys

Enter a stake to see where it buys the most after fees, using each venue’s live order book.

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Buy

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Cover all 4 outcomes across venues

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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (other / general rate). Fee calculator. Estimates only, not advice.

About this market

Live prediction market odds for "Lowest Great Salt Lake elevation in 2026?". 4,189.3 or 4,189.4 ft leads at 84.6%. Next is Below 4,189.3 ft at 11.9%. $45K has traded across 4 outcomes on Polymarket. The market is expected to resolve by Jan 2, 2027.

This market will resolve according to the lowest daily mean lake elevation, in feet above the National Geodetic Vertical Datum of 1929, recorded at the Great Salt Lake at Saltair Boat Harbor, UT gage (USGS site 10010000) between January 1 and December 31, 2026, as published by the United States Geological Survey (USGS) for parameter code 62614. Exactly one outcome in this market will resolve to "Yes". The lowest daily reading in the year decides this market, including readings already recorded earlier in 2026; 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. USGS reports lake elevation at this gage to 1 decimal place, and values will be used exactly as published, without rounding. Should USGS publish a value carrying more decimal places, it will first be rounded half up to 1 decimal place, so that 4,189.45 ft becomes 4,189.5 ft. The ranges cover consecutive one-decimal values and leave none out, so every reading falls in exactly one range: a lowest reading of exactly 4,189.3 ft resolves the range beginning at 4,189.3 ft to "Yes" and every other range to "No". This market will resolve on the values published at the time of resolution, whether flagged provisional ("P") or approved ("A"); revisions published afterward will not be considered, except where the correction provision below applies. If any data remains unpublished or unfinalized, this market will remain open for up to 2 calendar days (ET) after December 31, 2026; it will then resolve based on the finalized data published up to that point. In case of obvious data integrity issues (i.e., erroneous data), the market may remain open until the end of the third calendar day (ET) after such data is first released to allow for corrections; this applies only to clerical or similar errors, not to USGS differing from other sources. If the source is unavailable, this market may be extended to January 15, 2027, 11:59 PM ET. If no data for the window is available by then, this market will resolve to "Below 4,189.3 ft". The primary resolution source for this market will be the USGS Daily Values service for site 10010000; however, a consensus of credible reporting may also be used. The service is available here: https://waterservices.usgs.gov/nwis/dv/?sites=10010000&parameterCd=62614&startDT=2026-01-01&endDT=2026-12-31&format=rdb

Questions

What does the consensus price mean?

It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.

How is the payout worked out?

A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.

Why do the venues show different prices?

Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.

Is a price gap an arbitrage?

Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.

How fresh are these prices?

Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.

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