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OpenPower · Cooling demandWeather index future · simulation

Los Angeles cooling degree days · Week 48 · Nov 23 - Nov 29

Cooling degree days at KLAX · 7 local days, 2026-11-23 to 2026-11-29 · trading closes 11-29 08:00 (15 d)

Market index
14.8°C-days
Long 29.7¢ · Short 70.3¢ per share
Model fair
12.9 ± 10.5
priced 23 min ago
Edge
-2.0
fair minus market
Volume
437
8 traders
Open interest
504 / 410
long / short shares
0 · long pays 0long pays 1 · 50
Market 14.8Model fair 12.9
Listed at 13.9 · quoted by a market maker, no order book · one share moves 0.0200 sUSDT per index point

How the index builds, day by day

ForecastBeyond the forecast

Each bar is one local day's contribution to the index. Days with a final NWS climate report count as they stand (shown as final record); a day whose report is not out yet uses the METAR figure and is marked not final; the rest are the model's estimate, with a whisker one standard deviation either way.

051011-2311-2411-2511-2611-2711-2811-29
Day-by-day table
DaySourceHighLowCDDRunning total
Mon, Nov 23Forecast70.0°F58.8°F1.3 ± 1.91.3
Tue, Nov 24Forecast73.0°F58.1°F1.8 ± 2.33.1
Wed, Nov 25Forecast70.9°F59.9°F1.8 ± 2.44.8
Thu, Nov 26Forecast72.5°F58.5°F1.9 ± 2.56.8
Fri, Nov 27Forecast72.7°F59.7°F2.2 ± 2.89.0
Sat, Nov 28Beyond the forecast69.8°F60.1°F1.9 ± 2.710.9
Sun, Nov 29Beyond the forecast69.8°F60.1°F1.9 ± 2.712.8

Market index path

one step per trade · dashed line: model fair now
9.915.821.8

Recent trades

TimeTradeSharesAmountAvg price
11-13 19:50Buy short44.5631.1469.9¢
11-13 14:50Buy short34.3923.7469.0¢
11-13 08:50Buy long23.337.2531.1¢
11-13 05:50Buy short25.4717.5568.9¢
11-12 19:50Buy short88.6860.0067.7¢
11-12 15:50Buy short91.3860.0065.7¢
11-12 13:50Buy short94.4460.0063.5¢
11-12 09:50Buy long168.4560.0035.6¢
11-12 08:50Buy long107.1334.8432.5¢
11-12 06:50Buy long205.4860.0029.2¢
11-12 03:50Buy short30.8022.3672.6¢

Settlement

KLAX is a US station, so this contract settles on the NWS daily climate report (CLI) of each of its 7 days: the index is the sum built from the high and low the National Weather Service prints. The local forecast office issues each report after local midnight, normally within one to three hours, and the contract settles one day after the last report is issued - about 12-01 10:00. A corrected report replaces the earlier one and the day runs again from it. If any day has no final report three days after the period ends, the contract is void and every position is refunded at cost. NWS CLI Watch ↗

Contract specification

Symbol
CDD-KLAX-26W48
Index
Cooling degree days (CDD), in °C-days
Formula
max(0, (high + low) / 2 - 18), summed over the period
Station
KLAX · Los Angeles
Period
Week 48 · Nov 23 - Nov 29 · 7 local days, 2026-11-23 to 2026-11-29
Band
0 to 50
Payoff
Long: (index - 0) / 50 sUSDT per share, held to 0..1. Short: 1 minus that.
Point value
0.0200 sUSDT per share per index point
Trading closes
2026-11-29 08:00 UTC
Settles
One day after the NWS climate report for the last day is issued
Settlement source
The NWS daily climate report (CLI) of each day, as carried by the Weather Market oracle
Hedges
Power - Electricity, LNG for power (the exposure it hedges; this contract settles on the index)
Trade CDD-KLAX-26W48

Long gains if CDD finishes above the level you pay for.

Virtual sUSDT only. No monetary value.

Rules in short
  • Long gains when the index finishes higher, short when it finishes lower. A long and a short share together always pay 1 sUSDT.
  • Outside the band 0 to 50 the contract pays as if the index had finished on the edge.
  • You pay in full when you buy. What you paid is the most you can lose: no margin, no liquidation.
  • You can sell back to the market maker at any time before trading closes, when the last day of the period begins.
  • A US station: the index is built from the high and low in the NWS daily climate report of each day, and the contract settles a day after the last of those reports is issued. Void, with every position refunded at cost, if any day has no final report three days after the period ends.
Full rules →