Shanghai May 25 Low: Market Locks In 22°C

Some markets trade uncertainty. This one trades meteorology. The lowest temperature in Shanghai on May 25 has a near-certain outcome priced in: traders are sitting at 98.9% confidence that the overnight low will be exactly 22°C. That is not a bet on the future. That is a market reflecting what weather station data has already shown.

The market question asks which temperature bracket captures Shanghai’s lowest reading on May 25. The 22°C outcome is priced at $0.99. All alternative outcomes, from 16°C or below up to 26°C or higher, share the remaining $0.01. Total volume is $9,873, with $8,596 traded in the last 24 hours. The contract resolves at 12:00 UTC on May 25, 2026.

How the Shanghai Temperature Contract Works

This contract resolves to whichever temperature bracket matches Shanghai’s verified lowest temperature reading on May 25. The 22°C bracket pays out if the official overnight minimum lands at exactly 22°C. Any other reading, whether 21°C, 23°C, or outside those bands entirely, pays out to holders of the corresponding bracket.

• 22°C is priced at $0.99, implying a 98.9% probability of resolution in this bracket.
• 21°C, 20°C, 19°C, 18°C, 17°C, 16°C or below, 23°C, 24°C, 25°C, and 26°C or higher each carry minimal implied probability at current pricing.

Any bracket other than 22°C pays out only if the verified minimum temperature falls outside the favored range. Late May in Shanghai typically sits in a narrow thermal band, with overnight lows clustered between 18°C and 24°C depending on frontal systems. A meaningful departure from 22°C on this specific date would require a cold front intrusion or an unexpected warm surge, neither of which current meteorological data supports. The data doesn’t care about the politics of prediction markets. It is already recording temperatures.

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Market Momentum and Conviction Signals

The trend score sits at 67.26. With 1-hour and 24-hour price changes not recorded as separate moves, the signal reads as stable conviction, not momentum-driven repricing. The $8,596 in 24-hour volume against a total of $9,873 tells the real story: the overwhelming majority of trading in this contract happened in the final day, as weather data for May 25 became available and traders locked in the outcome.

Total liquidity is $9,677. Volume is below $1M, which means this order book is thin. A single large trade could shift the price on any bracket. But at 98.9%, the 22°C bracket has absorbed the available capital with clear directional intent. The market is pricing certainty, not science, here. Here’s what the measurements are telling us: Shanghai’s overnight low on this date is already reflected in the price.

• The trend score of 67.26 combined with near-zero price movement signals a market that has settled, not one that is actively debating.
• The $8,596 in 24-hour volume shows late-stage convergence as weather data confirmed the overnight reading.
• Thin liquidity below $1M means any remaining price movement on alternative brackets could be sharp and sudden.
• Open interest is $0, confirming this contract is in final resolution territory with no pending exposure.
• The 22°C bracket’s $0.99 price reflects a market that has effectively closed on the outcome before formal resolution.

Lines Analysis: Shanghai Temperature on May Twenty-Fifth

Shanghai’s late May climate is well-documented. The city sits in a humid subtropical zone where overnight minimums in the third week of May typically range from 18°C to 24°C. A reading of 22°C on May 25 is entirely consistent with historical patterns for this period, absent a significant synoptic weather event. Traders who pushed 98.9% into this bracket are not speculating. They are recording a number that weather monitoring infrastructure has already produced.

The alternative brackets, particularly 21°C and 23°C, remain the only realistic challengers. A one-degree variance in temperature measurement or bracket classification is the only plausible risk to the 22°C outcome. An unexpected cold front or a sudden warm air mass from the south could push the low outside the 22°C bracket entirely, but current meteorological conditions for the Shanghai region do not support that scenario. The market is pricing uncertainty, not science, and right now the science is settled.

• Any official weather data release contradicting 22°C would immediately reprice the alternative brackets sharply higher.
• A rounding or measurement methodology question from the resolution source could introduce a final-hour pricing adjustment.
• The 23°C bracket is the next most likely alternative if temperatures ran slightly warmer than forecast overnight.
• The 21°C bracket would gain traction if a late-arriving frontal boundary pushed the overnight low slightly cooler.
• Resolution at 12:00 on May 25 means any final repricing window is extremely narrow from the time of this writing.

Total volume of $9,873 is thin by prediction market standards. The data strongly favors the 22°C bracket. No competing bracket has attracted meaningful capital. The contract is resolved in everything but formal confirmation.

LINES VERDICT

EFFECTIVELY RESOLVED

The 22°C bracket has absorbed nearly all available capital at 98.9% confidence. Weather data for Shanghai on May 25 is already in the books, and the market has priced it accordingly.

What the market says: At 98.9% implied probability, this contract is a near-certainty for 22°C. Thin volume below $1M means a sharp move on any alternative bracket remains technically possible in the final hours before the 12:00 resolution on May 25.

Key unknown: The single factor that would reprice this contract is any official measurement or resolution determination placing Shanghai’s overnight low outside the 22°C bracket, whether through a late weather data revision or a rounding classification decision by the resolution source.