SimpleFunctions

Global temperature increase by between 1.20ºC and 1.24ºC in May 2026

1.20–1.24ºC is priced at 1¢ on Polymarket. Current book: 1¢ bid, 1¢ ask, 0¢ spread. This outcome ranks #4 of 6 inside May 2026 Temperature Increase (ºC).

Price history

1¢ current

+1¢
0¢5¢
May 25, 2026May 26, 2026

Contract brief

This market will resolve according to the value reported by the Global Land-Ocean Temperature Index for May 2026 when it is released. An anomaly within a named bracket for May 2026 is necessary and sufficient to resolve this market immediately once the data becomes available, regardless of whether the figure for May 2026 is later revised. The primary resolution source for this market will be the figure found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column "May" in the row "2026" (https://data.giss.nasa.gov/gistemp/tabledata_v4/GLB.Ts+dSST.txt). If NASA’s “Global Temperature Index” is rendered permanently unavailable, other information from NASA may be used. If no information for May 2026 is provided by NASA by July 1, 2026, 11:59 PM ET, this market will resolve to the lowest range bracket.

Outcome

1.20–1.24ºC

Rank

#4 of 6

Leader

1.10–1.14ºC 73¢

Range

0¢-73¢

Family volume

$125K

Identifier

0x5a3f3af5...443d

May 26, 2026, 10:58 PM UTC · 0m ago

Implied probability

1¢
Latest venue quote
May 26, 2026, 10:58 PM UTC · 0m ago

Bid

Ask

Spread

24h volume

$1K

Family rank

#4 of 6

6 outcomes · May 2026 Temperature Increase (ºC)

Closes

Jun 10, 2026

Family volume

$125K

Orderbook snapshot

1 / 1¢

Polymarket
0¢ spread
BidSize
100¢405
100¢66
0¢6.7K
0¢1.0K
AskSize
2¢20
2¢60
2¢45
100¢184
100¢100
100¢25
100¢395
100¢286

Contract terms

What resolves this market.

YES condition

This market will resolve according to the value reported by the Global Land-Ocean Temperature Index for May 2026 when it is released. An anomaly within a named bracket for May 2026 is necessary and sufficient to resolve this market immediately once the data becomes available, regardless of whether the figure for May 2026 is later revised. The primary resolution source for this market will be the figure found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column "May" in the row "2026" (https://data.giss.nasa.gov/gistemp/tabledata_v4/GLB.Ts+dSST.txt). If NASA’s “Global Temperature Index” is rendered permanently unavailable, other information from NASA may be used. If no information for May 2026 is provided by NASA by July 1, 2026, 11:59 PM ET, this market will resolve to the lowest range bracket.

Venue

Polymarket

Closes

Jun 10, 2026

Identifier

0x5a3f3af5…443d

SF Signal
Regime
neutral

Indicators

Yield, cliff risk, volatility, and regime.

Regime

neutral

Score

0.5

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How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.