Why is ACGL stock up today?

Arch Capital Group Ltd (ACGL) is up 0.0% today. Our scanner flagged it 2 times today on unusual volume. A recent SEC filing (ARCH CAPITAL GROUP LTD.: Q2 FY2026 results, three months to Jun 30, 2026) may be a factor. Volume is running about 1.7x its recent daily average.

Why is $ACGL stock moving today?

Arch Capital Group Ltd · FIRE, MARINE & CASUALTY INSURANCE

Why is $ACGL moving today?

The likely driver

ARCH CAPITAL GROUP LTD.: Q2 FY2026 results, three months to Jun 30, 2026

SEC filing · Aug 4

The numbers behind the move

Short interest

2.2% of float

Days to cover

3.9d

Float

341.2M · High

Float rotation

0.0x

Price

$95.78

Move today

+0.0%

Volume vs avg

1.7x

Scanner alerts today

Flagged in 30 days

Market cap

$32.7B

Prev close

$95.78

Avg volume

2.4M

Today’s scanner timeline

11:57 AMUnusual volume (RVOL) alert
10:30 AMUnusual volume (RVOL) alert

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

Earlier scanner activity on ACGL

Sep 18Unusual volume (RVOL) alert
Sep 18Unusual volume (RVOL) alert
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 16Big % mover alert
Sep 16Unusual volume (RVOL) alert
Sep 16Unusual volume (RVOL) alert
Sep 16Unusual volume (RVOL) alert
Sep 16Unusual volume (RVOL) 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.

Full $ACGL page →Live chart Trending stocks

Other stocks moving today

$SSM -13.6%$INDP -13.0%$BFRI -12.1%$PBLS -11.5%$NFE -11.5%$NINE -10.7%$TLX -10.2%$PPHC -10.1%

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.