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OpenPower · Cooling demandWeather index future · simulation

Austin cooling degree days · Week 48 · Nov 23 - Nov 29

Cooling degree days at KAUS · 7 local days, 2026-11-23 to 2026-11-29 · trading closes 11-29 06:00 (15 d)

Market index
12.5°C-days
Long 22.8¢ · Short 77.2¢ per share
Model fair
3.2 ± 2.9
priced 23 min ago
Edge
-9.3
fair minus market
Volume
303
6 traders
Open interest
0 / 414
long / short shares
0 · long pays 0long pays 1 · 55
Market 12.5Model fair 3.2
Listed at 17.0 · quoted by a market maker, no order book · one share moves 0.0182 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 23Forecast78.3°F60.6°F3.2 ± 2.73.2
Tue, Nov 24Forecast61.5°F39.2°F0.0 ± 0.23.2
Wed, Nov 25Forecast41.4°F29.1°F0.03.2
Thu, Nov 26Forecast40.1°F27.5°F0.03.2
Fri, Nov 27Forecast54.7°F33.6°F0.0 ± 0.13.2
Sat, Nov 28Beyond the forecast53.2°F39.0°F0.0 ± 0.23.2
Sun, Nov 29Beyond the forecast53.2°F39.0°F0.0 ± 0.23.2

Market index path

one step per trade · dashed line: model fair now
0.010.120.3

Recent trades

TimeTradeSharesAmountAvg price
11-13 15:50Buy short58.7945.0876.7¢
11-13 09:50Buy short79.5660.0075.4¢
11-13 08:50Buy short81.1960.0073.9¢
11-13 06:50Buy short83.0160.0072.3¢
11-13 01:50Buy short85.0260.0070.6¢
11-12 08:50Buy short26.4618.3669.4¢

Settlement

KAUS 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 08:00. 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-KAUS-26W48
Index
Cooling degree days (CDD), in °C-days
Formula
max(0, (high + low) / 2 - 18), summed over the period
Station
KAUS · Austin
Period
Week 48 · Nov 23 - Nov 29 · 7 local days, 2026-11-23 to 2026-11-29
Band
0 to 55
Payoff
Long: (index - 0) / 55 sUSDT per share, held to 0..1. Short: 1 minus that.
Point value
0.0182 sUSDT per share per index point
Trading closes
2026-11-29 06:00 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-KAUS-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 55 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 →