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Top Stock Gainers August 2021 - Monthly Performance Ranked

The top US-listed stocks of August 2021 by monthly gain, on split-adjusted closes. Ranks 3,287 companies above $100M on NYSE, Nasdaq and NYSE American.

Looking for intraday moves instead? Today's stock movers ranks the current session's alert board, so it measures against whichever session is running rather than covering a fixed window.

2021
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

August 2021 ranking, complete through August 31, 2021

30 stocks are withheld from this ranking because their price history is under review.

The gain covers the period; price, market cap, sector and country show each company as it is today.

Swipe or scroll the table sideways for more columns.

Rank
Symbol
Company Name
Aug Gain
Market Cap (today)
Price (today)
Country
Sector
1
FULC
Fulcrum Therapeutics
+306.29%
$292.22M
$3.83
United States
Healthcare
2
TASK
Taskus, Inc.
+108.28%
$733.50M
$8.00
United States
Technology
3
DVAX
Dynavax Technolo
+105.93%
$1.82B
$15.50
United States
Healthcare
4
BMNR
Bitmine Immersion Technolog...
+104.55%
$13.77B
$22.83
United States
Financial Services
5
SKYT
Skywater Technology Inc
+89.87%
$1.60B
$32.46
United States
Technology
6
VALN
Valneva Se
+82.57%
$659.97M
$6.96
France
Healthcare
7
TERN
Terns Pharmaceuticals, Inc.
+78.28%
$6.12B
$52.95
United States
Healthcare
8
MNDY
Monday.Com Ltd.
+77.20%
$3.84B
$90.73
Israel
Technology
9
UPST
Upstart Holdings, Inc.
+71.74%
$2.95B
$30.30
United States
Financial Services
10
LWAC
Lightwave Acqsn
+71.69%
$306.76M
$10.20
United States
Financial Services
11
RANI
Rani Therapeutics Holdings,...
+71.53%
$123.66M
$0.8800
United States
Healthcare
12
PMTS
CPI Card Group Inc.
+70.59%
$323.32M
$28.04
United States
Financial Services
13
BASE
Couchbase, Inc.
+66.27%
$1.35B
$24.42
United States
Technology
14
NUVL
Nuvalent, Inc.
+66.27%
$9.81B
$123.96
United States
Healthcare
15
CRDL
Cardiol Therapeu
+66.15%
$217.29M
$1.86
Canada
Healthcare
16
HUT
Hut 8 Mining
+64.78%
$9.97B
$80.86
United States
Financial Services
17
ALT
Altimmune
+62.23%
$604.95M
$3.11
United States
Healthcare
18
SITM
SiTime
+59.13%
$18.42B
$614.83
United States
Technology
19
BEBE
TGE Value Creative Solution...
+58.88%
$199.80M
$9.99
France
Financial Services
20
ARCT
Arcturus Therape
+58.14%
$382.29M
$13.45
United States
Healthcare
21
DOCS
Doximity Inc
+55.93%
$4.51B
$25.33
United States
Healthcare
22
CRBU
Caribou Biosciences, Inc.
+55.34%
$177.96M
$1.66
United States
Healthcare
23
TVTX
Travere Therapeutics Inc
+53.09%
$6.19B
$65.71
United States
Healthcare
24
EDIT
Editas Medicine Inc
+53.08%
$477.63M
$3.11
United States
Healthcare
25
RYI
Ryerson Hldg Corp
+50.23%
$907.09M
$28.16
United States
Industrials
26
LWLG
Lightwave Logic Inc
+49.14%
$954.30M
$6.19
United States
Basic Materials
27
AFRM
Affirm Holdings, Inc.
+48.88%
$25.80B
$77.03
United States
Financial Services
28
RSI
Rush Street Interactive Inc
+48.21%
$6.30B
$25.80
United States
Consumer Cyclical
29
ARRY
Array Technologies, Inc.
+47.15%
$721.45M
$4.69
United States
Technology
30
SD
Sandridge Energy
+47.11%
$532.40M
$14.36
United States
Energy
31
IVVD
Invivyd
+46.75%†
$293.73M
$0.9965
United States
Healthcare
32
SNDA
Sonida Senior Living Inc
+46.58%
$1.90B
$39.56
United States
Healthcare
33
HUMA
Humacyte Inc
+46.49%
$178.40M
$0.6422
United States
Healthcare
34
MRUS
Merus
+46.35%
$5.28B
$69.80
Netherlands
Healthcare
35
ATLC
Atlanticus Holdings Corp
+45.78%
$1.46B
$96.09
United States
Financial Services
36
FHTX
Foghorn Therapeutics Inc.
+45.35%
$419.85M
$7.07
United States
Healthcare
37
SANA
Sana Biotechnology, Inc.
+44.95%
$1.17B
$3.91
United States
Healthcare
38
BBAR
Banco Bbva Argentina S.A.
+44.52%
$2.87B
$14.05
Argentina
Financial Services
39
GSAT
Globalstar
+44.20%
$10.67B
$82.36
United States
Communication Services
40
VSCO
Victorias Secret And Co
+44.16%
$4.31B
$54.30
United States
Consumer Cyclical
41
IMRX
Immuneering Corp
+43.94%
$342.90M
$5.30
United States
Healthcare
42
MARA
MARA Holdings Inc
+43.78%
$4.35B
$11.26
United States
Financial Services
43
VIR
Vir Biotechnology, Inc.
+43.73%
$1.65B
$9.78
United States
Healthcare
44
LRMR
Larimar Therapeutics Inc
+42.90%
$434.23M
$4.18
United States
Healthcare
45
CDTX
Cidara Theraptcs
+42.86%
$1.64B
$64.87
United States
Healthcare
46
ATOM
Atomera Inc
+42.52%
$186.53M
$4.78
United States
Technology
47
LAC
Lithium Americas
+41.41%
$1.14B
$3.14
Canada
Basic Materials
48
ADCT
Adc Therapeutics Sa
+40.85%
$127.23M
$0.9966
Switzerland
Healthcare
49
AMR
Alpha Metallurgical Resourc...
+40.43%
$2.66B
$210.01
United States
Basic Materials
50
DLO
Dlocal Ltd
+40.23%
$4.46B
$15.17
Uruguay
Technology
51
BMA
Banco Macro
+39.55%
$4.66B
$72.84
Argentina
Financial Services
52
GLUE
Monte Rosa Therapeutics, Inc.
+39.03%
$1.22B
$14.30
United States
Healthcare
53
BWIN
The Baldwin Group
+38.88%
$3.09B
$31.90
United States
Financial Services
54
TSSI
Tss Inc Del
+38.64%
$246.92M
$8.75
United States
Technology
55
GME
Gamestop Corp
+38.43%
$8.17B
$18.21
United States
Consumer Cyclical
56
GGAL
Grupo Financiero
+38.38%
$7.02B
$41.45
Argentina
Financial Services
57
AQST
Aquestive Therapeutics
+38.37%
$584.88M
$4.66
United States
Healthcare
58
COGT
Cogent Biosciences Inc
+38.23%
$6.37B
$36.73
United States
Healthcare
59
BXC
Bluelinx Hldgs Inc
+37.60%
$664.97M
$84.60
United States
Industrials
60
ACI
Albertsons Companies Inc
+37.56%
$6.01B
$12.38
United States
Consumer Defensive
61
YMM
Full Truck Alliance Co Ltd
+37.44%
$9.17B
$8.77
China
Technology
62
FLYW
Flywire Corp
+37.00%
$2.38B
$19.54
United States
Technology
63
GLOB
Globant S A
+36.91%
$1.71B
$39.62
Luxembourg
Technology
64
SPT
Sprout Social Inc
+36.71%
$607.13M
$10.02
United States
Technology
65
ZNTL
Zentalis Pharmaceuticals, Inc.
+35.92%
$362.12M
$3.83
United States
Healthcare
66
METC
Ramaco Res Inc
+34.99%
$754.32M
$11.90
United States
Basic Materials
67
BITF
Bitfarms
+34.78%
$1.20B
$1.98
United States
Financial Services
68
CFLT
Confluent, Inc.
+34.59%
$11.13B
$30.99
United States
Technology
69
CRNX
Crinetics Pharmaceuticals
+34.53%
$8.99B
$84.69
United States
Healthcare
70
ENTA
Enanta Pharmaceuticals Inc
+34.43%
$392.32M
$13.47
United States
Healthcare
71
APYX
Apyx Medical Corporation
+34.36%
$131.43M
$3.12
United States
Healthcare
72
DKS
Dicks Sporting Goods Inc
+33.93%
$16.40B
$183.23
United States
Consumer Cyclical
73
SEMR
Semrush Hldgs Inc
+33.74%
$1.81B
$12.00
United States
Technology
74
MRVI
Maravai Lifesciences Holdin...
+33.53%
$3.20B
$8.64
United States
Healthcare
75
ORIC
Oric Pharmaceuticals, Inc.
+32.99%
$1.47B
$14.20
United States
Healthcare
76
DAO
Youdao, Inc.
+32.88%
$2.21B
$18.34
China
Consumer Defensive
77
SUPV
Grupo Supervielle S.A.
+32.63%
$746.61M
$7.90
Argentina
Financial Services
78
BILL
BILL HOLDINGS, INC
+32.52%
$4.76B
$47.82
United States
Technology
79
CMRE
Costamare
+32.29%
$1.89B
$15.62
Monaco
Industrials
80
PCTY
Paylocity Holdin
+32.25%
$8.49B
$153.34
United States
Technology
81
EDRY
Eurodry Ltd
+32.00%
$134.30M
$46.85
Greece
Industrials
82
CVAC
Curevac B.V.
+31.95%
$1.21B
$5.39
Germany
Healthcare
83
ORMP
Oramed Pharmaceuticals Inc
+31.73%
$200.08M
$4.81
United States
Healthcare
84
EYPT
EyePoint
+31.49%
$446.04M
$5.32
United States
Healthcare
85
CABA
Cabaletta Bio, Inc.
+31.35%
$530.68M
$3.13
United States
Healthcare
86
OPCH
Option Care Health Inc
+31.32%
$3.55B
$23.70
United States
Healthcare
87
SCSC
Scansource
+31.10%
$1.10B
$54.35
United States
Technology
88
M
Macys Inc
+31.09%
$6.00B
$22.82
United States
Consumer Cyclical
89
CCRN
Cross Ctry Healthcare Inc
+31.02%
$428.06M
$13.25
United States
Healthcare
90
GOGO
Gogo Inc
+30.71%
$363.16M
$2.68
United States
Communication Services
91
NVAX
Novavax Inc
+30.55%
$1.47B
$8.94
United States
Healthcare
92
MRAM
Everspin Technol
+30.36%
$416.63M
$17.11
United States
Technology
93
SLNH
SOLUNA HOLDINGS INC
+30.33%
$288.62M
$1.18
United States
Financial Services
94
ASND
Ascendis Pharma
+30.24%
$16.61B
$253.29
Denmark
Healthcare
95
AEHR
Aehr Test Sys
+30.19%
$3.32B
$101.73
United States
Technology
96
EXPI
Exp World Holdin
+29.92%
$1.07B
$6.74
United States
Real Estate
97
GXO
Gxo Logistics Incorporated
+29.68%
$5.24B
$45.72
United States
Industrials
98
LXRX
Lexicon Pharmaceuticals Inc
+29.32%
$1.02B
$2.30
United States
Healthcare
99
KLIC
Kulicke & Soffa Inds Inc
+29.00%
$4.49B
$85.75
Singapore
Technology
100
ACLS
Axcelis Tech Ord
+28.92%
$3.92B
$127.07
United States
Technology
Top gain on this page +306.29% FULC
Rows on this page 100 ranks 1–100
Page 1 of 33
Period August 2021 closed

Best performing large-cap stocks in August 2021

BMNR Bitmine Immersion Technolog... +104.55% $13.77B
SITM SiTime Corporation +59.13% $18.42B
AFRM Affirm Holdings, Inc. +48.88% $25.80B
GSAT Globalstar, Inc. +44.20% $10.67B
CFLT Confluent, Inc. +34.59% $11.13B

August 2021 Stock Market Momentum

This page answers a current-month trend question with data: which US-listed stocks have shown the strongest price gains so far in August 2021. The ranking is based on observed market performance, not analyst ratings, price targets, or investment recommendations.

Use the list to research momentum, market breadth, sector strength, and catalysts behind large moves. Before acting on any stock, review the company's news, SEC filings, liquidity, volatility, and your own risk constraints.

Looking for a specific Symbol?
#1 FULC leads with +306% August 2021

Among the 3,287 NYSE, Nasdaq and NYSE American stocks currently eligible for this ranking, FULC (Fulcrum Therapeutics) has the highest gain in August 2021 with +306%. Following are TASK (+108%) and DVAX (+106%). Top performing sectors: Healthcare (+53% avg, 4 in top 10), Financial Services (+52% avg, 3 in top 10), Energy (+47% avg).

MARKET LEADERS
52-WEEK LEADER
SNDK +3312%
SanDisk Corp
2021 YTD LEADER
LWLG +1418%
Lightwave Logic Inc
AUG 2021 LEADER
FULC +306%
Fulcrum Therapeutics
52-Week Top 5 Full List →
1 SNDK +3311.9% 2 MGRT +2754.7% 3 AXTI +2390.8% 4 ERAS +1008.8% 5 NUAI +899.0%
2021 YTD Top 5 Full List →
1 LWLG +1418.4% 2 AEHR +899.2% 3 EP +814.5% 4 GME +760.2% 5 PECO +536.2%
August 2021 Top 5 Full List →
1 FULC +306.3% 2 TASK +108.3% 3 DVAX +105.9% 4 BMNR +104.5% 5 SKYT +89.9%
Quick Access: 52-Week 2021 YTD Aug 2021 Market Cap Dividends

This ranking shows the top performing stocks and biggest stock gainers during August 2021, calculated from the first to the last trading day of the month. It shows which stocks are going up this month, with split-adjusted data used for consistent performance calculations.

Monthly performance rankings can reveal price strength, sustained momentum, sector rotation, and event-driven moves that are not visible in one-day movers lists. The table is informational only and does not recommend any stock to buy, sell, or hold.

† Return measured from the start of the stock's current trading history (a recent listing or relisting), not from the start of the month.
Gains are computed on split-adjusted closes, so a split inside the month does not read as a move. This ranking is informational and is not investment advice.

Frequently Asked Questions

Q Which stock has gained the most in August 2021?
A

FULC (Fulcrum Therapeutics) has the highest monthly gain in this ranking for August 2021, with a gain of 306%. Top performers this month include FULC, TASK, DVAX.

Q What stocks gained the most in August 2021?
A

The biggest gainers in August 2021 were: FULC (+306%), TASK (+108%), DVAX (+106%), BMNR (+105%), SKYT (+90%). These monthly rankings show which stocks had the strongest short-term momentum.

Q Does this page recommend the best stocks to buy now?
A

No. This page is an informational ranking of stocks that have already gone up during August 2021. It does not make buy, sell, or hold recommendations and should be used as a research starting point, not financial advice.

Q How can this ranking help explain current stock market trends?
A

The ranking shows where price strength is concentrated during August 2021. Comparing the top gainers by sector, market cap, and recent catalysts can help identify momentum themes and market rotation without implying that any listed stock is a recommendation.

Q Which companies does this ranking include?
A

3,287 companies with a market capitalization above $100 million traded on NYSE, Nasdaq and NYSE American, each with at least one trading day inside August 2021. One close inside the month is enough to qualify, so a company that listed during the month is ranked on the part of it that it traded.

Q Which sectors performed best in August 2021?
A

The top performing sectors in August 2021 included Healthcare, Technology, Financial Services, based on the stocks with highest monthly gains. FULC led the Healthcare sector.

Q How is monthly stock performance calculated?
A

Monthly stock performance is calculated by comparing the closing price on the last trading day of the month to the opening price on the first trading day. Split-adjusted prices ensure accuracy.

Q Where can I find today's top stock gainers and most active stocks?
A

This page ranks stocks by their full-month performance in August 2021. For today's top stock gainers, real-time stock movers, and the most active stocks right now, visit our Momentum Scanner, which tracks live intraday activity across US-listed symbols.

Understanding Monthly Stock Performance

Monthly performance rankings reveal short-term momentum patterns and help identify stocks experiencing rapid price movements:

  • Momentum Research: Stocks showing strong monthly performance can help identify where market attention and price strength are concentrated.
  • Sector Rotation: Monthly rankings can reveal which sectors are gaining favor with investors and where market leadership is shifting.
  • Event-Driven Moves: Earnings releases, product launches, and regulatory approvals often create significant monthly price movements.

Using Monthly Data Effectively

  • Combine Timeframes: Compare monthly gainers with 52-week and YTD performance to identify stocks with both short and long-term momentum.
  • Research the Catalyst: Investigate why top monthly performers moved significantly. The reason for the move matters as much as the percentage gain.
  • Watch for Reversals: Extreme monthly gains sometimes precede corrections, so treat the ranking as a research starting point rather than a buy list.

Evaluate Your Positions

Researching one of this month's top movers? Use our Stock Return Calculator to review historical performance, or the Position Size Calculator to model position sizing and risk before making your own decision.