The corn ceiling — ≤550c, locked at 91%.

91% probability the CBOT December-2026 corn contract settles at or below 550 cents per bushel on 1 December 2026 — a ceiling roughly 19% above its early-August level of 462c. Resolves 1 Dec 2026.

Type · Prediction Lock · commodity price ceiling Locked · 2026-08-13 · before the December settlement Resolves · 2026-12-01 · CME/CBOT daily settlement (cmegroup.com) Scored · binary: ZCZ26 settlement ≤550.00 cents/bu yes/no

CBOT December 2026 corn · our locked ceiling

≤ 550c

cents per bushel · vs 462c in early August 2026

The CBOT December-2026 corn contract settled at 462.00 cents per bushel in early August 2026, with the front month trading below 440c near a four-week low. Our ceiling sits roughly 19% above that level. Source: CME/CBOT daily settlements.

— 1 · The Locked Call

CBOT December-2026 corn settles ≤550 cents per bushel on 1 December 2026 — P = 0.91.

We lock a binary: the CBOT December 2026 corn futures contract settles at or below 550.00 cents per bushel on 1 December 2026, per the CME daily settlement. Confidence 91%.

— 2 · Why it's nail-able

Corn sat near a four-week low, and the ceiling allows a nineteen per cent rally.

The December-2026 corn contract was around 462c in early August with the front month below 440c, near a four-week low, in a well-supplied market. Our ceiling permits roughly a 19% rally before the call fails, and by 1 December the northern-hemisphere harvest is essentially complete, which removes the growing-season weather risk that drives most sharp corn rallies. Confidence 91%, not higher, because an export-demand shock or a South American planting problem can still lift the board late in the year. Scored on the CME settlement price for the December-2026 contract, not the cash or front-month price.

Locked on 2026-08-13 — scored against the CME December-2026 corn settlement.

RAOSCAFF locks P-153 on 2026-08-13. Scored against the CBOT December-2026 corn futures settlement on 1 December 2026 versus a 550 cents-per-bushel ceiling.

Locked: 2026-08-13 (commit timestamp on origin/main)
Resolves: 2026-12-01 — CME/CBOT daily settlement for the December-2026 corn contract
Source: CME Group official daily settlement price, CBOT Corn December 2026 contract (cmegroup.com)
Scored by: Binary: YES if the CME official settlement for the CBOT December-2026 corn contract on 1 December 2026 is ≤550.00 cents/bushel; NO otherwise. The December-2026 contract settlement specifically — not the cash price and not the front-month contract. If 1 December is not a trading day, the next trading day's settlement is used.

An export-demand shock or a South American planting problem is the disclosed tail.