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Why is $TNDM stock down today?

Tandem Diabetes Care, Inc. · SURGICAL & MEDICAL INSTRUMENTS & APPARATUS

Why is $TNDM down today?

The likely driver

TANDEM DIABETES CARE INC: Q2 FY2026 results, three months to Jun 30, 2026
TANDEM DIABETES CARE INC: Q2 FY2026 results, three months to Jun 30, 2026
SEC filing · Aug 6

The numbers behind the move

Short interest
16.9% of float
Days to cover
8.2d
Float
69.6M · Medium
Float rotation
0.0x

TNDM: 16.9% of the float is sold short (8.2 days to cover).

Price
$16.78
Move today
-0.5%
Volume vs avg
0.0x
Scanner alerts today
0
Flagged in 30 days
152
Market cap
$1.2B
Prev close
$16.87
Avg volume
1.9M

Nothing has triggered on TNDM yet in this session. Our scanner has flagged it 152 times in the last 30 days , most recently on September 18 for big percentage moves, unusual volume, which is why this page is here. See the full TNDM page for the chart and the alert history.

Earlier scanner activity on TNDM

  • Sep 18Unusual volume (RVOL) alert
  • Sep 18Unusual volume (RVOL) alert
  • Sep 18Unusual volume (RVOL) alert
  • Sep 18Unusual volume (RVOL) alert
  • Sep 17Unusual volume (RVOL) alert
  • Sep 17Unusual volume (RVOL) alert
  • Sep 17Unusual volume (RVOL) alert
  • Sep 17Big % mover alert
  • Sep 17Unusual volume (RVOL) alert
  • Sep 17Big % mover alert
  • Sep 17Big % mover alert
  • Sep 17Big % mover alert

Prior sessions in the last 30 days. A name our scanner keeps flagging is behaving differently from the rest of the market, even on a quiet day.

Other stocks moving today

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.