A significant structural shift is underway in the aluminum market: the LME forward curve has moved from a backwardation of $40/mt during the peak Gulf crisis to a contango of $12/mt on Thursday. This is the first contango in the aluminum curve since early May and signals that the market's supply disruption premium has largely been priced out.
The contango structure has important implications for market participants: it incentivizes inventory holding and makes carry trades profitable. Physical traders can buy spot material, finance it at ~$38/mt/month, and sell forward at a profit if the contango exceeds 4-5% annualized. This typically encourages stock building and adds a cushion against future supply shocks.
LME aluminum inventories rose 2.1% this week to 498,250 tonnes, with the largest increases in Asian warehouses (South Korea and Singapore). The cancel warrant ratio fell to 12% from 28% during the crisis, indicating less imminent physical withdrawal. The stock build supports the contango structure.
The shift reflects stabilization in Gulf region shipping lanes and a return of speculative selling. Open interest on COMEX aluminum fell 15% this week as momentum traders exited long positions. The CTA community has shifted from net long to neutral on aluminum, suggesting limited near-term buying pressure.
The contango environment favors buyers: deferred pricing and forward contracts now offer better value than spot purchases. Buyers can negotiate Q3-Q4 fixed-price contracts at current contango-adjusted levels. The risk premium unwind may continue to $3,400-3,500/mt. Consider partial hedging at current levels with the ability to add on further dips. Spot premiums are also declining.