Market Movers

Top Losers Today

This page focuses on the stocks under the heaviest pressure today, helping readers separate broad market weakness from more isolated damage.

Live market snapshot18 names trackedUpdated Oct 17, 1:58 PM UTC
Snapshot signal

See which stocks are the top losers today by percentage, with move size, breadth, and follow-through context.

Average downside move
-6.97%
Decliners on this page
18
Average volume multiple
1.14x
Breadth
0/18
How to read this page

A live list needs a little context.

Names are ordered by the largest percentage declines in the current snapshot. Check volume, breadth, and the stock page before treating a sharp loss as a market-wide signal.

Last refreshed Oct 17, 1:58 PM UTC. WhyStockMove is an informational research tool, not investment advice.

Leaders on this page

How to use this page

Compare breadth first, then compare volume. If only a few stocks are doing the work, the move is narrower than it looks.

Use the row links to move into stock-specific pages when a ticker stands out enough to justify a deeper read.

Keep the related guide close. It helps turn a list of movers into a usable decision framework.

Tracked names

This board stays public and useful by keeping the frame visible: price, volume, participation, and near-term event context.

Unlock the deeper analysis layer
SMCI
Supermicro
Technology Hardware, Storage & Peripherals
-9.86%
Price
$31.63
Market cap
$20.5B
Volume
1.0x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
MRNA
Moderna
Biotechnology
-7.82%
Price
$218.01
Market cap
$87B
Volume
1.1x avg
Setup
near its 52-week high
Health CareOpen stock page
PANW
Palo Alto Networks
Systems Software
-7.63%
Price
$342.00
Market cap
$279.8B
Volume
1.5x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
STX
Seagate Technology
Technology Hardware, Storage & Peripherals
-7.50%
Price
$639.01
Market cap
$145.3B
Volume
1.3x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
PLTR
Palantir Technologies
Application Software
-7.22%
Price
$186.03
Market cap
$447B
Volume
1.0x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
DDOG
Datadog
Application Software
-7.19%
Price
$247.11
Market cap
$88.7B
Volume
0.9x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
COHR
Coherent Corp.
Electronic Components
-7.06%
Price
$232.90
Market cap
$45.9B
Volume
1.2x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
FTNT
Fortinet
Systems Software
-7.03%
Price
$169.13
Market cap
$124.1B
Volume
1.2x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
CRWD
CrowdStrike
Systems Software
-7.02%
Price
$227.39
Market cap
$232.8B
Volume
1.4x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
WDC
Western Digital
Technology Hardware, Storage & Peripherals
-6.86%
Price
$332.00
Market cap
$124.3B
Volume
1.0x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
SNDK
Sandisk
Technology Hardware, Storage & Peripherals
-6.85%
Price
$1,299.30
Market cap
$187.8B
Volume
0.7x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
TTD
Trade Desk (The)
Advertising
-6.85%
Price
$12.23
Market cap
$5.8B
Volume
0.7x avg
Setup
near its 52-week low
Communication ServicesOpen stock page
CIEN
Ciena
Communications Equipment
-6.67%
Price
$332.73
Market cap
$47.2B
Volume
1.3x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
AXON
Axon Enterprise
Aerospace & Defense
-6.45%
Price
$390.29
Market cap
$31.7B
Volume
1.5x avg
Setup
near its 52-week low
IndustrialsOpen stock page
HPE
Hewlett Packard Enterprise
Technology Hardware, Storage & Peripherals
-5.97%
Price
$55.13
Market cap
$73.2B
Volume
1.5x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
AMD
Advanced Micro Devices
Semiconductors
-5.95%
Price
$528.75
Market cap
$863.2B
Volume
1.0x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
COIN
Coinbase
Financial Exchanges & Data
-5.79%
Price
$173.16
Market cap
$45.7B
Volume
1.0x avg
Setup
near its 52-week low
FinancialsOpen stock page
INTC
Intel
Semiconductors
-5.79%
Price
$89.85
Market cap
$475B
Volume
1.1x avg
Setup
in the middle of its 52-week range
Information TechnologyOpen stock page
Full analysis is locked

See what the premium layer adds

The public page keeps the move readable. The premium layer adds ranked driver context, deeper monitoring, and a tighter read on whether the move is expanding, fading, or rotating elsewhere.

Open dashboard
Ranked signal context
Catalyst monitoring
Watchlist-based follow-up
Faster stock-by-stock drilldown

Common questions about this page

What does top losers today track?

This page focuses on the stocks under the heaviest pressure today, helping readers separate broad market weakness from more isolated damage. The list on this market page is refreshed from live market data and ranks the names that best match the theme or group.

How should readers use this page?

Use it to compare breadth, volume, and trend context before drilling into any one name. Pages like this are most useful when you want to know whether a move is isolated or part of a broader pattern.

Why are some stocks moving more than others on the same page?

Names in the same list can still respond very differently because liquidity, expectations, earnings timing, and positioning are never identical. The table helps surface those differences quickly.

Does volume matter on pages like this?

The average volume multiple across the tracked names is 1.14x, which helps show whether participation is broad or muted.

Where can I see a deeper stock-specific breakdown?

Open any ticker row to move into the stock-specific page, where the public market snapshot and the locked deeper analysis experience are structured around that individual name.

These pages are informational snapshots designed to help readers compare market structure and stock movement quickly.