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Axcelis Technologies, Inc. (ACLS) short interest & options flow

NASDAQ

Axcelis Technologies heads into late August with two signals quietly moving in the same direction — short sellers are adding exposure and options traders are leaning more defensive than they have been in weeks. The most notable shift this week is in positioning. Short interest climbed 8.4% on Tuesday alone and is now up 7.7% on the week, reaching 5.3% of the free float — a level…

$99.24+10.27% 1d-0.83% 1w-29.69% 1mClose: 6 Nov 2026
Cost to borrow
Low
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Availability
High and rising
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Market cap
$3.06B
Next earnings
10 Feb 2027
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Key data as of 9 Nov 2026

ORTEX chart of Axcelis Technologies, Inc. (ACLS) share price and short interest (% of free float), six months to November 6, 2026

ACLS news and analysis

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