Updated from 4:04 p.m. ET

Aluminum makers were tarnished on Thursday after the Chinese government didn't announce as big a stimulus package as expected.

Alcoa ( AA), a component of the Dow Jones Industrial Average, was down 98 cents, or 15.7% to $5.26.

Since June 2008, aluminum has fallen to 62 cents a pound from about $1.50.

Charles Bradford of Bradford Research said analysts could be reducing their first-quarter forecasts for Alcoa as the quarter ends. Analysts surveyed by Thomson Reuters expect Alcoa to lose 38 cents a share in the quarter.

Century Aluminum ( CENX) was down 20% or 30 cents to $1.20, and Kaiser Aluminum ( KALU) fell 15.3% or $3.02 to $16.74.

Aluminum Corp. of China ( ACH) saw its American depositary shares fall 8.9% or $1.19 to $12.12.

Shares of Tredegar ( TG) fell 98 cents or 6.2% to $14.94. The company on Thursday announced a 4-cent-a-share dividend.
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