Why is $HDSN stock up today?

Hudson Technologies Inc · Wholesale-Machinery, Equipment & Supplies

Why is $HDSN up today?

The likely driver

HUDSON TECHNOLOGIES INC /NY: Q2 FY2026 results, three months to Jun 30, 2026

SEC filing · Aug 7

The numbers behind the move

Short interest

40.2% of float

Days to cover

6.4d

Float

7.1M · Medium

Float rotation

0.0x

Insider buying

12 open-market

HDSN: 40.2% of the float is sold short (6.4 days to cover), 12 open-market insider buys.

Price

$5.15

Move today

+0.8%

Volume vs avg

0.0x

Scanner alerts today

Flagged in 30 days

Market cap

$218M

Prev close

$5.11

Avg volume

519K

Nothing has triggered on HDSN yet in this session. Our scanner has flagged it 57 times in the last 30 days , most recently on October 5 for big percentage moves, unusual volume, which is why this page is here. See the full HDSN page for the chart and the alert history.

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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.