What is a stock heat map?

It is a visual where each company is a rectangle: the size shows its market cap, and the color shows how much its price rose or fell. It lets you read the whole market at a glance.

What do the size and color mean?

Size reflects market capitalization (large companies are bigger on the map). Color reflects price change: green = gain, red = loss, grey = data unavailable.

How often is the data updated?

Twice a day (shortly after the US market opens and after it closes). It is not a real-time source — it is meant for a daily overview, not intraday trading.

Can I choose a different index or period?

Yes. Use the buttons at the top to switch between S&P 500, Dow 30 and Nasdaq 100, and between the 1-day, 1-week or 1-month change.

Where does the data come from?

Prices and market caps come from public market-data sources, while the company lists and sectors come from the official indices (S&P 500, Dow Jones, Nasdaq-100).

Stock Market Heat Map

A bird’s-eye view of the US market: every company is a rectangle sized by market capitalization and colored by how much its price rose (green) or fell (red).

503 companies137 advancing361 declining

Index

Period

NVDA+1.48%$220.78

AAPL-0.89%$316.85

MSFT-1.22%$507.29

AVGO+0.42%$370.34

MU+2.77%$958.73

AMD+1.10%$470.72

INTC+0.04%$89.51

PLTR+0.05%$186.38

CSCO+0.51%$110.49

ORCL-1.15%$149.12

LRCX-0.14%

AMAT-0.71%

PANW+2.84%

DELL-0.05%

ANET+0.16%

TXN+0.88%

CRWD+5.77%

SNDK+5.50%

KLAC-0.05%

IBM-0.73%

CRM+0.60%

APH+0.51%

MRVL-2.29%

STX-0.17%

QCOM+3.83%

ADI+0.10%

WDC-1.94%

NOW+2.27%

GLW+0.02%

FTNT+2.97%

ADBE+0.44%

ACN+0.08%

INTU

CDNS

DDOG

SNPS

LITE

MSI

HPE

MPWR

TEL

NXPI

KEYS

TER

ADSK

COHR

CIEN

WDAY

ROP

FLEX

MCHP

NTAP

JBL

CTSH

TDY

HPQ

VRSN

FICO

SMCI

FFIV

FSLR

CDW

GEN

PTC

GOOGL-2.09%$339.35

GOOG-2.18%$335.41

META-0.98%$572.34

NFLX-0.82%

VZ-0.16%

TMUS-0.51%

DIS

APP

CMCSA

WBD

LYV

TTWO

TKO

RDDT

FOXA

FOX

ECHO

OMC

BRK-B-0.19%$504.03

JPM-0.45%$356.02

V-0.58%$379.37

MA-1.01%$589.31

BAC-0.61%

MS-0.68%

GS-0.78%

WFC-0.35%

AXP-0.91%

C-0.96%

SCHW-0.31%

BLK-0.76%

BX+0.60%

IBKR+1.51%

COF-0.54%

CB-0.39%

SPGI-1.59%

PGR-0.26%

BNY

CME

KKR

USB

PNC

HOOD

MRSH

ICE

MCO

APO

TRV

AON

AJG

ALL

TFC

MET

AFL

NDAQ

STT

COIN

XYZ

AMP

FITB

ARES

PYPL

MSCI

PRU

AIG

HIG

RJF

NTRS

MTB

HBAN

ACGL

WTW

CBOE

CFG

FISV

CPAY

CINF

WRB

SYF

BRO

GPN

TROW

PFG

KEY

FIS

BEN

AMZN-2.50%$259.77

TSLA+5.51%$367.95

HD-0.71%

MCD-0.55%

BKNG

TJX

SBUX-1.48%

LOW

ABNB

DASH

MAR

CVNA

ROST

RCL

ORLY

HLT

NKE

GRMN

CMG

EBAY

YUM

DHI

EXPE

CCL

LVS

WSM

TPR

DRI

PHM

ULTA

LEN

GPC

TSCO

NVR

BBY

LULU

HAS

LLY-1.52%$1,156.73

JNJ-0.82%$265.85

ABBV+0.37%

MRK-0.40%

UNH-0.90%

AMGN-0.59%

TMO-0.82%

ABT-1.88%

GILD+0.45%

PFE

DHR

VRTX

BMY

ISRG

SYK

CVS

MDT

MCK

HCA

ELV

REGN

BSX

COR

MRNA

CAH

BDX

VEEV

HUM

IDXX

IQV

WAT

RMD

DXCM

GEHC

BIIB

ZTS

CNC

MTD

DGX

INCY

WST

STE

ZBH

VTRS

CAT-0.35%

GE-2.01%

RTX-1.88%

GEV-1.47%

UNP-1.74%

DE+3.90%

BA-0.97%

ETN

UBER

LMT

ADP

VRT

HWM

CSX

PWR

UPS

MMM

EMR

JCI

CTAS

ITW

CMI

FDX

NSC

NOC

HON

RSG

PCAR

TDG

URI

GWW

FAST

FIX

AME

DAL

HONA

LHX

WAB

CARR

ROK

AXON

PAYX

FERG

ODFL

UAL

EME

CPRT

OTIS

DOV

XYL

VRSK

JBHT

EXPD

VLTO

HUBB

EFX

FDXF

SNA

LUV

NDSN

FTV

LDOS

CHRW

ROL

IEX

WMT+1.73%$104.87

COST-0.17%$943.89

KO-1.10%

PG+0.93%

PM-2.39%

PEP-0.52%

MNST

MDLZ

TGT

KDP

ADM

SYY

KVUE

KMB

HSY

KHC

CASY

DLTR

CHD

STZ

GIS

XOM+2.71%$160.95

CVX+2.12%

COP

MPC

VLO

PSX

WMB

SLB

EOG

KMI

BKR

TRGP

OKE

OXY

FANG

DVN

EQT

HAL

TPL

EXE

NEE+0.61%

CEG

DUK

AEP

SRE

ETR

XEL

VST

EXC

PEG

WEC

AEE

PCG

DTE

ATO

AWK

CNP

PPL

NRG

CMS

EIX

LIN+0.01%

NEM

FCX

SHW

ECL

APD

CRH

NUE

CTVA

MLM

VMC

STLD

PPG

DOW

IFF

AMCR

LYB

PKG

WELL-0.77%

PLD

EQIX

AMT

SPG

DLR

PSA

VTR

CBRE

IRM

CCI

EXR

VICI

VMRK

SBAC

ESS

Updated: 31.08 22:00 UTC

The map updates twice a day — shortly after the US market opens and after it closes (not real time).

loss

gain

no data

Top gainers

CRWD CrowdStrike Holdings, Inc.$231.00+5.77%
TSLA Tesla, Inc.$367.95+5.51%
SNDK Sandisk Corporation$1,566.70+5.50%
COIN Coinbase Global, Inc.$188.12+5.31%
SLB SLB Limited$60.10+4.83%
DE Deere & Company$654.91+3.90%
QCOM QUALCOMM Incorporated$170.48+3.83%
ULTA Ulta Beauty, Inc.$537.10+3.79%
CF CF Industries Holdings, Inc.$130.03+3.37%
FFIV F5, Inc.$407.13+3.27%

Top losers

EIX Edison International$53.98-23.07%
PCG Pacific Gas & Electric Co.$13.27-20.06%
AON Aon plc$321.52-9.53%
HWM Howmet Aerospace Inc.$244.95-7.51%
TTWO Take-Two Interactive Software, $219.70-6.67%
AXON Axon Enterprise, Inc.$566.56-5.69%
CLX Clorox Company (The)$97.68-4.73%
WYNN Wynn Resorts, Limited$91.28-4.18%
TAP Molson Coors Beverage Company$39.76-4.10%
UBER Uber Technologies, Inc.$75.65-4.02%

The 11 sectors of the US market

Did you know that every company on the US stock market is grouped into 11 economic sectors (the GICS standard)? Each sector bundles companies with similar businesses — from technology and health care to energy and real estate. The table below shows how much each sector is worth (total market cap) and how it moved over the past day, week and month, so you can quickly see where money is flowing in the market.

Sector	1 day	1 week	1 month	Market cap
Information Technology73 companies	+0.31%	+3.90%	+7.17%	$25.5T
Communication Services24 companies	-1.81%	-1.62%	-2.43%	$11.4T
Financials76 companies	-0.63%	-0.74%	+1.69%	$8.9T
Consumer Discretionary47 companies	-0.38%	-0.50%	+1.78%	$6.8T
Health Care59 companies	-0.43%	-2.43%	+5.94%	$6.3T
Industrials83 companies	-1.08%	-2.13%	-2.16%	$5.6T
Consumer Staples34 companies	-0.12%	-2.44%	-2.36%	$3.5T
Energy21 companies	+2.10%	+0.94%	+6.63%	$2.3T
Utilities31 companies	-0.96%	-2.02%	-4.78%	$1.3T
Materials25 companies	-0.81%	-1.47%	+6.79%	$1.2T
Real Estate30 companies	-0.76%	-2.58%	-1.98%	$1.2T

Each sector’s change is market-cap weighted (larger companies count more) and computed across the S&P 500 constituents.

How to read the map

Rectangle size = the company’s market capitalization (its total value). Large companies take up more space.
Color = price change over the selected period: green for a gain, red for a loss, grey for missing data. The more intense the color, the bigger the move (up to ±3%).
Companies are grouped by sector and industry so you can quickly see where the market is moving — for example whether technology is up while energy is down.

About this data

Market data updates twice a day (not real time), not instantly. Changes are computed from closing prices.

We cover the largest US companies (S&P 500, Dow 30, Nasdaq 100). European and small-cap names are not included yet.

This information is educational and is not investment advice. Investing in equities carries risk.

Frequently asked questions

What is a stock heat map?: It is a visual where each company is a rectangle: the size shows its market cap, and the color shows how much its price rose or fell. It lets you read the whole market at a glance.
What do the size and color mean?: Size reflects market capitalization (large companies are bigger on the map). Color reflects price change: green = gain, red = loss, grey = data unavailable.
How often is the data updated?: Twice a day (shortly after the US market opens and after it closes). It is not a real-time source — it is meant for a daily overview, not intraday trading.
Can I choose a different index or period?: Yes. Use the buttons at the top to switch between S&P 500, Dow 30 and Nasdaq 100, and between the 1-day, 1-week or 1-month change.
Where does the data come from?: Prices and market caps come from public market-data sources, while the company lists and sectors come from the official indices (S&P 500, Dow Jones, Nasdaq-100).

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