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OpenAgricultureSimulated priceReal-asset future · simulation

Corn · Chicago · November 2026

Corn price index, 100 at listing · follows GDD-KORD-NOV26 · 2026-11-01 to 2026-11-30 · trading closes 11-30 06:00 (16 d)

This price is made by the demo. Weather Fi has no commodity price feed. The price on this page is an index the simulator builds from the linked weather index and a simulated market factor, to show how a real-asset future would trade beside a weather index future. It is not the price of corn on any market, and it trades and settles in virtual sUSDT only.
Market price · simulated
94.38points · 100 at listing
Long 40.6¢ · Short 59.4¢ per share
Reference price
96.96 ± 7.44
priced 23 min ago
Weather-implied
93.90
market is +0.48 to it
Volume
376
11 traders
Open interest
169 / 548
long / short shares
70 · long pays 0long pays 1 · 130
Market 94.38Reference 96.96Weather-implied 93.90
Listed at 100.00 · quoted by a market maker, no order book · one share moves 0.0167 sUSDT per price point

Where this price comes from

real weather × a simulated market

More growing heat moves the crop along and lifts the expected harvest, so the simulated price falls as growing degree days rise.

The weather it follows · real
GDD-KORD-NOV26Chicago growing degree days · November 2026
Model index
50.8
± 5.5
Market index
55.4
long 64¢
At listing
47.8
this contract's base

Growing degree days from the station record and forecast. 37.5 is already on the record after 12 days.

The price · simulated
Listing level
100.00
Weather effectindex 50.8 against 47.8 at listing
-2.0%× 0.9804
Market factorsimulated, stepped 23 min ago
-1.1%× 0.9890
Reference price
96.96

One index point moves the price by -0.659 points. The weather effect is held to ±60%.

The market factor stands in for everything else that moves a commodity - supply, storage, freight, currencies. It is a random walk the simulator steps once an hour and freezes when trading closes. The sensitivity to the weather is an assumption of this simulation, not an estimate from market data.

Price and weather index, pass by pass

one point per hourly pricing pass
Market priceReference price (weather × market factor)GDD-KORD-NOV26 market indexGDD-KORD-NOV26 model index
77.990.4102.9PRICE · SIMULATED436179GDD INDEX · °C-DAYS

The reference price moves when the weather index moves and when the market factor steps. The market price follows it as simulated participants trade, and spread traders close gaps between the two contracts.

Try a weather outcome

100 shares, bought at the current market price

Move the final GDD and see what a position here would make by itself, and what it would make with the weather exposure taken out by an offsetting position in GDD-KORD-NOV26.

Settlement price
96.96
long share pays 0.449
This position alone
+4.30
100 long CORN
Weather hedge
-5.10
60.44 long GDD
Hedged total
-0.80
sUSDT, both legs
-430+43204875
This position aloneHedged with GDD-KORD-NOV26P&L in sUSDT against the final GDD

The hedged line is flat where both contracts are inside their bands: the weather is out of the result. What is left is the gap between the two markets today and the market factor, which is held here at its current -1.1% and is not hedged by a weather contract. Fills are taken at the quoted price, without the price impact of the trade.

Recent trades

TimeTradeSharesAmountAvg price
11-13 15:50Buy long55.9522.3640.0¢
11-13 11:50Buy long43.7416.9638.8¢
11-13 10:50Buy short76.6746.6460.8¢
11-13 06:50Buy short34.5020.5359.5¢
11-13 03:50Buy short51.5930.1658.5¢
11-12 18:50Buy short106.1360.0056.5¢
11-12 15:50Buy shortpair12.847.0755.1¢
11-12 13:50Buy shortpair36.1419.6854.5¢
11-12 12:50Buy shortpair29.7915.9853.6¢
11-12 08:50Buy longpair20.729.6346.5¢
11-12 07:50Buy longpair48.1221.9545.6¢
11-12 07:50Buy short75.7640.9454.0¢
11-12 05:50Buy short109.8456.8251.7¢
11-12 02:50Buy short14.357.2050.2¢

A trade marked pair is one leg of a simulated spread trade: the other leg is in the weather index contract this price follows.

Settlement

This contract settles right after GDD-KORD-NOV26 settles on the station record. The final price is the listing level of 100, moved by the weather effect at the final index and by the market factor as it stood when trading closed. If the weather contract is void, this one is void too and every position is refunded at cost.

Contract specification

Symbol
CORN-KORD-NOV26
Underlying
Corn price index, simulated by this demo. 100 on the day of listing.
Follows
GDD-KORD-NOV26 · Growing degree days
Hub
KORD · Chicago
Period
November 2026 · 2026-11-01 to 2026-11-30
Price
100 x (1 + -0.60 x (index - 47.8) / 90.0) x market factor
Band
70 to 130
Payoff
Long: (price - 70) / 60 sUSDT per share, held to 0..1. Short: 1 minus that.
Point value
0.0167 sUSDT per share per price point
Trading closes
2026-11-30 06:00 UTC
Settles
Right after GDD-KORD-NOV26 settles, no earlier than 2026-12-01 09:00 UTC
Settlement source
Computed by the simulator from the linked weather contract's final index and the simulated market factor. Not a market price.
Trade CORN-KORD-NOV26

Long gains if the simulated price finishes above the level you pay for.

Virtual sUSDT only. No monetary value.

Hedge the weather out

For every 100 long shares here, 60.44 long shares of GDD-KORD-NOV26 offset the weather part of this price. For a short position, take the other side.

What remains is the simulated market factor. The ratio moves with it, so it is recalculated at every pricing pass.

Open GDD-KORD-NOV26 →
Rules in short
  • The price is simulated by the demo from a real weather index and a simulated market factor. It is not a market price.
  • Long gains when the price finishes higher, short when it finishes lower. A long and a short share together always pay 1 sUSDT.
  • Outside the band 70 to 130 the contract pays as if the price 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.
  • Void, with every position refunded at cost, if the linked weather contract is void.
Full rules →