Alcoa (AA) Stock Jumps 10% as Iranian Strikes Rattle the Global Aluminium Supply Chain

TLDR

• Alcoa (AA) surged by as much as 11.5% on Monday following Iranian missile attacks on major Middle Eastern aluminium plants over the weekend.
• Key targets included Emirates Global Aluminium and Aluminium Bahrain, with the latter reducing its production by approximately 19%.
• According to ANZ, the Middle East accounts for roughly 9% of worldwide aluminium output, placing 4 to 5 million metric tons of exports in jeopardy.
• The London Metal Exchange aluminium benchmark climbed 5% to about $3,492 per ton, nearing a four-year peak.
• Century Aluminium (CENX) advanced approximately 11%, Kaiser Aluminium (KALU) increased 4.7%, and Constellium (CSTM) was up around 4%.

(SeaPRwire) –   Alcoa (AA) was trading near $63.80, representing a gain of roughly 10% for the session.

Alcoa Corporation, AA

US aluminium stocks experienced a sharp increase on Monday after Iranian missile strikes targeted two of the globe’s largest aluminium producers over the weekend, with markets factoring in a potential supply shortage.

Alcoa spearheaded the advance, rising as much as 11.5% in early trading. Century Aluminium leapt 11.2%, Kaiser Aluminium increased 4.7%, and Constellium advanced approximately 3.5% to 4%.

The facilities attacked were significant. According to The Wall Street Journal, state-backed producers Emirates Global Aluminium and Aluminium Bahrain sustained damage on Saturday. Aluminium Bahrain has already reduced output by nearly 19%.

Iran’s retaliatory attacks cause damage and injuries in the Gulf, with Aluminium Bahrain (Alba) and Emirates ⁠Global ⁠Aluminium (EGA) reporting strikes on their facilities.

Al Jazeera’s Zein Basravi reports from Dubai. pic.twitter.com/UQB2vqMOkM

— Al Jazeera English (@AJEnglish) March 29, 2026

The Middle East plays a crucial role in this market. The region is responsible for about 9% of global aluminium production, and ANZ assesses that four to five million metric tons of exports are now potentially disrupted.

Early Monday, aluminium forward contracts in New York were up about 4% at $3,319 per metric ton, according to FactSet. The London Metal Exchange benchmark saw a greater increase, soaring 5% to roughly $3,492 per ton—close to a four-year high. Prices have risen 10% since the day before the conflict started.

“The Iranian smelter attacks have done some serious damage to the supply backdrop,” wrote David Rosenberg of Rosenberg Research in a Monday note.

Supply Shock Fears Drive the Move

Alcoa’s stock had been facing downward pressure since the Iran conflict started. It had declined 5.9% over the previous month, underperforming the broader S&P 500, which fell 7.4% in the same period, hampered by worries over slowing industrial demand and increased energy costs.

Monday’s price action reversed that story. The market’s focus shifted from demand concerns to supply risks. The sudden threat to 9% of global production rapidly alters the outlook for US-based producers who are not subject to the same geopolitical dangers.

The rally illustrates a basic supply-demand realignment: reduced output from the Gulf implies tighter global stockpiles and elevated prices, which benefits the profit margins of US producers.

Broader Sector Gains

The upward trend extended beyond Alcoa. The aluminium sector broadly saw increased buying interest, with Kaiser Aluminium up between 3.4% and 4.7% at various points in the session, and Constellium climbing around 3.5% to 4%.

The key metric to monitor is the LME aluminium price nearing a four-year high. This price level had not been reached in years, indicating the market’s serious view of the supply interruption.

By Monday morning, several Gulf production facilities had already started to reduce output, and a complete assessment of the damage was not yet available.