Prediction market odds for the November 2026 Aluminum Midwest premium realigned sharply in Thursday's session, driven by the underlying price of the corresponding CME futures contract. As traders adjusted to the futures market's 104.75¢ per pound settlement price, the implied probability of an extremely high premium collapsed, with capital reallocating to more moderate outcomes. The contract for a premium of "110¢ or above," which previously stood at 91%, fell 88.0 percentage points to just 3%, while contracts for lower thresholds saw their probabilities solidify near certainty.
The shift on October 15, 2026, represents a significant market correction, bringing prediction market odds more in line with the established pricing from the professional commodities market. The dominant signal was a concentration of probability in the 70¢ to 95¢ range, reflecting high confidence that the premium will remain elevated but fall short of the 110¢ mark. This repricing occurred as probability moved from the high-end tail to the market's floor, with the "70¢ or above" contract jumping 86.0 percentage points.
Distribution Analysis
The following table displays all outcomes for the November 2026 Aluminum Midwest premium market, sorted by current probability.
| Outcome | Current Prob | Change | Volume (24h) |
|---|---|---|---|
| 80¢ or above | 98% | ~0pp | 172 |
| 85¢ or above | 96% | +17.0pp | 85 |
| 70¢ or above | 92% | +86.0pp | 96 |
| 75¢ or above | 90% | ~0pp | 64 |
| 95¢ or above | 90% | ~0pp | 73 |
| 105¢ or above | 14% | ~0pp | 343 |
| 100¢ or above | 9% | ~0pp | 154 |
| 90¢ or above | 6% | ~0pp | 279 |
| 110¢ or above | 3% | -88.0pp | 24 |
Net: 2 of 9 contracts rose against 1 declining contract on higher aggregate volume, as the market repriced tail risk downward to align with futures data.
What's Driving the Shift
Alignment with CME Futures: The primary driver for the repricing is the settlement price of the underlying instrument this market resolves against. According to the CME Group's daily bulletin from October 14, 2026, the November 2026 Aluminum MW Transaction Premium Platts Swaps (AUP) contract settled at 1.04750 U.S. dollars per pound, or 104.75¢/lb. This benchmark makes a settlement of "110¢ or above" a low-probability event, prompting the sharp downward correction from a previous 91% implied probability.
Reallocation of Improbable Risk: The collapse of the "110¢ or above" contract from 91% to 3% freed up significant probability that was then reallocated across the distribution. This capital flowed into contracts that are now deep in-the-money relative to the 104.75¢/lb futures price. The "70¢ or above" and "85¢ or above" contracts saw the largest gains, rising to 92% and 96% respectively, as traders priced in near-certainty for these outcomes.
Volume Confirms Trend: The conviction behind the repricing is supported by trading volume patterns. The dramatic 88.0 percentage point drop in the "110¢ or above" contract occurred on very low volume of just 24 contracts. In contrast, the contracts that gained probability ("70¢ or above" and "85¢ or above") did so on a combined volume of 181 contracts, suggesting a broader consensus was forming around the new price level rather than a single actor exiting a large position.
Market Context
The Aluminum Midwest Premium is a crucial surcharge paid over the base London Metal Exchange (LME) aluminum price for physical delivery in the U.S. Midwest. It reflects regional supply and demand, freight costs, and import tariffs. This prediction market, which trades on the CFTC-regulated Kalshi exchange, allows participants to take positions on the final monthly settlement value of this premium.
The market settles based on the official final price of the November 2026 CME Aluminum MW U.S. Transaction Premium Platts (AUP) futures contract. The recent price action demonstrates the prediction market acting as a corrective mechanism, closing a significant gap between its implied odds and the price established in the institutional futures market.
What to Watch
The key metric for this market remains the price of the November 2026 CME AUP futures contract, ticker AUPX2026. Traders will watch for any significant deviations from its current level around 104.75¢/lb. The prediction market is scheduled to close and resolve on November 30, 2026, based on the final CME settlement data for that month's contract.
