TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 10, 8:00 AM EST
Polymarket
These markets attempt to predict the highest temperature in Istanbul on July 10, 2026. However, Kalshi's resolution criteria reference Oklahoma City temperatures on July 7, 2026, creating a fundamental mismatch with the stated event group title and Polymarket's Istanbul-focused resolution logic.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 10 Jul '26. The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=LTFM To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C. This market can not resolve until the first data point for the following date has been published on the resolution source. The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution is based on the maximum temperature recorded at Oklahoma City on July 7, 2026, according to the National Weather Service's Climatological Report (Daily) for Oklahoma City Will Rogers Airport. The temperature is divided into six ranges: 90°F or below, 91-92°F, 93-94°F, 95-96°F, 97-98°F, and 99°F or above. Each range corresponds to a distinct market outcome. The official data source is accessed through the NWS website by navigating to the Observed Weather tab and selecting Oklahoma City Will Rogers Airport with the Daily Climate Report option. Traders should note that preliminary NWS data may be subject to rounding and conversion nuances, and the final determination uses only the official NWS Climatological Report (Daily), not preliminary reports or third-party weather services.