SimpleFunctions

Global temperature increase by more than 1.29ºC in May 2026

>1.29ºC is priced at 0¢ midpoint on Polymarket. Current book: 0¢ bid, 0¢ ask, 0¢ spread. This outcome ranks #5 of 6 inside May 2026 Temperature Increase (ºC).

Price history

0¢ current

1¢
0¢5¢
May 25, 2026May 25, 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

>1.29ºC

Rank

#5 of 6

Leader

1.10–1.14ºC 74¢

Range

0¢-74¢

Family volume

$125K

Identifier

0x55616309...3cb8

May 26, 2026, 11:52 PM UTC · 0m ago

Implied probability

0¢
Bid/ask midpoint
May 26, 2026, 11:52 PM UTC · 0m ago

Bid

Ask

Spread

24h volume

$419

Family rank

#5 of 6

6 outcomes · May 2026 Temperature Increase (ºC)

Closes

Jun 10, 2026

Family volume

$125K

Orderbook snapshot

0 / 0¢

Polymarket
0¢ spread
BidSize
0¢5.7K
AskSize
0¢623
2¢135
2¢124
100¢101
100¢101
100¢331
100¢177
100¢210

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

0x55616309…3cb8

SF Signal
Regime
neutral

Indicators

Yield, cliff risk, volatility, and regime.

Regime

neutral

Score

0.5

Related readings

Matched from SimpleFunctions blog, opinions, technical guides, concepts, and learn pages.

Browse library
Opinionessay

Prediction market liquidity: why depth matters more than volume for serious traders

Why orderbook depth matters more than volume for prediction market traders. Real Kalshi examples, liquidity scoring framework, and how to avoid slippage.

Opinionanalysis

Information Finance Has Arrived: A Material Map of Prediction Markets in Q2 2026

Combined Kalshi + Polymarket volume hit $66B in just four months of 2026 — already greater than the entire 2025 industry total. Bernstein projects $1T by 2030. Two venues hold 95% of US share. The distribution layer fragmented across nine retail surfaces. AI agents are 30% of Polymarket wallet activ

Blogmarkets

Kalshi vs Polymarket: Which Prediction Market Should You Trade?

In-depth comparison of Kalshi and Polymarket for prediction market traders. Regulatory structure, liquidity, fees, API tooling, and cross-venue trading with SimpleFunctions.

Technicalrisk

Reading Prediction Market Orderbooks: Liquidity, Spread, and When to Enter

How to read prediction market orderbooks on Kalshi. Covers bid-ask spread analysis, liquidity scoring, executable edge calculation, and when thin markets are opportunities vs traps.

Opinionanalysis

Liquidity Availability Is the Real Edge in Prediction Markets

Implied yield, cliff risk, and overround all describe what to trade. Liquidity Availability Score describes whether the orderbook can absorb the trade. Why LAS is the indicator that decides who actually books P&L.

Conceptmethodology

Liquidity Migration Across Resolution: Where the Money Goes When a Market Closes

When a flagship prediction market closes, the capital that was in it migrates to next-period siblings, adjacent categories, or off the venue entirely. Three migration patterns and the receiving-market opportunity.

SimpleFunctions context

Index, screen, query, and monitor.

Open index

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.