Why is $AA stock down today?

Alcoa Corporation · PRIMARY PRODUCTION OF ALUMINUM

Why is $AA down today?

The likely driver

Alcoa Corp: Q3 FY2026 results, three months to Sep 30, 2026

SEC filing · Oct 29

The numbers behind the move

Short interest

34.8% of float

Days to cover

2.5d

Float

33.8M · High

Float rotation

0.2x

Dilution

Heavy

AA: 34.8% of the float is sold short (2.5 days to cover), active share dilution on file.

Price

$38.42

Move today

-0.7%

Volume vs avg

1.2x

Scanner alerts today

Flagged in 30 days

147

Market cap

$10.1B

Prev close

$38.68

Avg volume

4.7M

Catch the next move like AA before the open

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Today’s scanner timeline

6:25 PMUnusual volume (RVOL) alert
3:48 PMUnusual volume (RVOL) alert
2:39 PMUnusual volume (RVOL) alert
1:14 PMUnusual volume (RVOL) alert
11:23 AMUnusual volume (RVOL) alert
9:28 AMUnusual volume (RVOL) alert

Unusual-volume alerts often fire before the news is widely reported. This is when our scanner first flagged AA today.

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Other stocks moving today

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Each opens that stock’s own why-is-it-moving page.

Move and volume are based on the latest market data and refresh live on this page. Scanner alerts are our own real-time unusual-volume signals. This is research, not investment advice.