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MARKET LEADERS
52-WEEK LEADER
WOLF +6278%
Wolfspeed, Inc.
2021 YTD LEADER
MINE +9999%
Mayfair Gold Corp.
AUG 2021 LEADER
MNTS +9999%
Momentus Inc.
📈 52-Week Top 5 Full List →
1 WOLF +6278.2% 2 BW +1687.7% 3 BE +1412.2% 4 TE +587.5% 5 DOCN +533.3%
📅 2021 YTD Top 5 Full List →
1 MINE +9999.0% 2 GEN +4731.2% 3 STRL +4720.4% 4 AEHR +4664.5% 5 CLS +4609.9%
🗓 August 2021 Top 5 Full List →
1 MNTS +9999.0% 2 CYBN +3245.9% 3 INDP +2577.1% 4 GDEV +758.4% 5 FULC +306.3%
Quick Access: 52-Week 2021 YTD Aug 2021 Market Cap Dividends
#1 MNTS leads with +9,999% August 2021

MNTS (Momentus Inc.) is the best performing stock in August 2021. Following are CYBN (+3,246%) and INDP (+2,577%). Top performing sectors: Industrials (+2530% avg, 1 in top 10), Communication Services (+217% avg, 1 in top 10), Healthcare (+189% avg, 5 in top 10).

Top Stock Gainers August 2021 - Monthly Performance Ranked

Track the top performing stocks of August 2021 ranked by monthly price gain. See which stock gainers delivered the highest gains this month, with market caps over $100 million on Nasdaq and NYSE.
2021
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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.

August 2021 Stock Market Momentum

This page answers a current-month trend question with data: which NYSE and NASDAQ 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?

Data as of June 20, 2026 at 11:45 AM EDT

Rank
Symbol
Company Name
Aug Gain
Market Cap
Price
Country
Sector
1
MNTS
Momentus Inc.
25638.95%
194.95 M
$ 10.35
United States
Industrials
2
CYBN
Cybin Inc.
3245.91%
148.61 M
$ 6.01
Canada
Healthcare
3
INDP
Indaptus Therapeutics, Inc.
2577.09%
441.65 M
$ 3.9
United States
Healthcare
4
GDEV
GDEV Inc.
758.43%
230.33 M
$ 12.69
Cyprus
Communication Services
5
FULC
Fulcrum Therapeutics, Inc.
306.29%
246.54 M
$ 3.7
United States
Healthcare
6
RGC
Regencell Bioscience Holdin...
273.36%
5.94 B
$ 12.01
Hong Kong
Healthcare
7
TASK
TaskUs, Inc.
108.28%
449.65 M
$ 4.91
United States
Technology
8
DVAX
Dynavax Technologies Corp
105.93%
1.82 B
$ 15.5
United States
Healthcare
9
BMNR
Bitmine Immersion Technolog...
104.55%
9.19 B
$ 16.14
United States
Financial Services
10
SKYT
SkyWater Technology, Inc.
89.87%
1.80 B
$ 36.57
United States
Technology
11
VALN
Valneva SE
82.57%
510.15 M
$ 5.38
France
Healthcare
12
TERN
Terns Pharmaceuticals, Inc.
78.28%
6.12 B
$ 52.95
United States
Healthcare
13
MNDY
monday.com Ltd.
77.2%
3.69 B
$ 71.53
Israel
Technology
14
UPST
Upstart Holdings, Inc.
71.74%
3.10 B
$ 32.43
United States
Financial Services
15
LWAC
LightWave Acquisition Corp.
71.69%
307.07 M
$ 10.21
United States
Financial Services
16
RANI
Rani Therapeutics Holdings,...
71.53%
107.57 M
$ 0.7824
United States
Healthcare
17
PMTS
CPI Card Group Inc.
70.59%
209.54 M
$ 18.26
United States
Financial Services
18
NUVL
Nuvalent, Inc.
66.27%
9.77 B
$ 123.43
United States
Healthcare
19
BASE
Couchbase, Inc.
66.27%
1.35 B
$ 24.42
United States
Technology
20
CRDL
Cardiol Therapeutics Inc.
66.15%
122.19 M
$ 1.06
Canada
Healthcare
21
HUT
Hut 8 Corp.
64.78%
14.01 B
$ 124.44
United States
Financial Services
22
ENLV
Enlivex Ltd.
63.06%
149.86 M
$ 0.6217
Israel
Healthcare
23
ALT
Altimmune, Inc.
62.23%
525.08 M
$ 2.7
United States
Healthcare
24
EDN
Empresa Distribuidora y Com...
61.97%
1.33 B
$ 27.86
Argentina
Utilities
25
SITM
SiTime Corporation
59.13%
19.24 B
$ 729.04
United States
Technology
26
BEBE
TGE Value Creative Solution...
58.88%
199.00 M
$ 9.95
France
Financial Services
27
ARCT
Arcturus Therapeutics Holdi...
58.14%
214.03 M
$ 7.53
United States
Healthcare
28
DOCS
Doximity, Inc.
55.93%
3.74 B
$ 20.46
United States
Healthcare
29
CRBU
Caribou Biosciences, Inc.
55.34%
162.66 M
$ 1.64
United States
Healthcare
30
TVTX
Travere Therapeutics, Inc.
53.09%
5.13 B
$ 55.15
United States
Healthcare
31
EDIT
Editas Medicine, Inc.
53.08%
412.81 M
$ 2.69
United States
Healthcare
32
RYI
Ryerson Holding Corp
50.23%
907.09 M
$ 28.16
United States
Industrials
33
LWLG
Lightwave Logic, Inc.
49.14%
1.51 B
$ 9.78
United States
Basic Materials
34
AFRM
Affirm Holdings, Inc.
48.88%
24.76 B
$ 73.92
United States
Financial Services
35
RSI
Rush Street Interactive, Inc.
48.21%
6.74 B
$ 29.09
United States
Consumer Cyclical
36
ARRY
Array Technologies, Inc.
47.15%
1.23 B
$ 8
United States
Technology
37
SD
SandRidge Energy, Inc.
47.11%
517.59 M
$ 14.02
United States
Energy
38
SNDA
Sonida Senior Living, Inc.
46.58%
1.70 B
$ 35.96
United States
Healthcare
39
HUMA
Humacyte, Inc.
46.49%
249.25 M
$ 0.9244
United States
Healthcare
40
MRUS
Merus N.V.
46.35%
5.28 B
$ 69.8
Netherlands
Healthcare
41
ATLC
Atlanticus Holdings Corpora...
45.78%
1.51 B
$ 100.12
United States
Financial Services
42
FHTX
Foghorn Therapeutics Inc.
45.35%
243.66 M
$ 4.15
United States
Healthcare
43
SANA
Sana Biotechnology, Inc.
44.95%
876.62 M
$ 3.15
United States
Healthcare
44
BBAR
Banco BBVA Argentina S.A.
44.52%
4.47 B
$ 21.9
Argentina
Financial Services
45
GSAT
Globalstar, Inc.
44.2%
10.36 B
$ 80.41
United States
Communication Services
46
VSCO
Victoria's Secret & Co
44.16%
4.31 B
$ 54.3
United States
Consumer Cyclical
47
GSM
Ferroglobe PLC
44.02%
730.62 M
$ 3.91
United Kingdom
Basic Materials
48
IMRX
Immuneering Corporation
43.94%
285.32 M
$ 4.41
United States
Healthcare
49
MARA
MARA Holdings, Inc.
43.78%
5.42 B
$ 14.22
United States
Financial Services
50
VIR
Vir Biotechnology, Inc.
43.73%
1.54 B
$ 9.16
United States
Healthcare
51
LRMR
Larimar Therapeutics, Inc.
42.9%
378.13 M
$ 3.64
United States
Healthcare
52
CDTX
Cidara Therapeutics, Inc.
42.86%
1.64 B
$ 64.87
United States
Healthcare
53
ATOM
Atomera Incorporated
42.52%
348.44 M
$ 9
United States
Technology
54
LAC
Lithium Americas Corp.
41.41%
1.53 B
$ 4.37
Canada
Basic Materials
55
ADCT
ADC Therapeutics SA
40.85%
138.64 M
$ 1.09
Switzerland
Healthcare
56
AMR
Alpha Metallurgical Resourc...
40.43%
2.36 B
$ 185.77
United States
Basic Materials
57
DLO
DLocal Limited
40.23%
3.76 B
$ 12.79
Uruguay
Technology
58
BMA
Banco Macro S.A.
39.55%
6.50 B
$ 101.68
Argentina
Financial Services
59
SPRO
Spero Therapeutics, Inc.
39.29%
132.02 M
$ 2.28
United States
Healthcare
60
GLUE
Monte Rosa Therapeutics, Inc.
39.03%
1.55 B
$ 18.31
United States
Healthcare
61
BWIN
The Baldwin Insurance Group...
38.88%
1.97 B
$ 20.24
United States
Financial Services
62
TSSI
TSS, Inc.
38.64%
380.68 M
$ 13.56
United States
Technology
63
GME
GameStop Corp.
38.43%
9.66 B
$ 21.52
United States
Consumer Cyclical
64
GGAL
Grupo Financiero Galicia S.A.
38.38%
9.55 B
$ 56.37
Argentina
Financial Services
65
AQST
Aquestive Therapeutics, Inc.
38.37%
590.87 M
$ 4.71
United States
Healthcare
66
COGT
Cogent Biosciences, Inc.
38.23%
5.90 B
$ 34.54
United States
Healthcare
67
BXC
BlueLinx Holdings Inc.
37.6%
447.95 M
$ 57.56
United States
Industrials
68
ACI
Albertsons Companies, Inc.
37.56%
6.65 B
$ 13.45
United States
Consumer Defensive
69
YMM
Full Truck Alliance Co. Ltd.
37.44%
8.16 B
$ 7.8
China
Technology
70
FLYW
Flywire Corporation
37%
1.96 B
$ 15.85
United States
Technology
71
GLOB
Globant S.A.
36.91%
1.33 B
$ 30.74
Luxembourg
Technology
72
SPT
Sprout Social, Inc.
36.71%
393.69 M
$ 6.55
United States
Technology
73
BTU
Peabody Energy Corporation
36.58%
3.02 B
$ 24.8
United States
Energy
74
ZNTL
Zentalis Pharmaceuticals, Inc.
35.92%
263.39 M
$ 3.7
United States
Healthcare
75
METC
Ramaco Resources, Inc.
34.99%
913.70 M
$ 13.99
United States
Basic Materials
76
BITF
Bitfarms Ltd
34.78%
1.20 B
$ 1.98
United States
Financial Services
77
CFLT
Confluent, Inc.
34.59%
11.13 B
$ 30.99
United States
Technology
78
CRNX
Crinetics Pharmaceuticals, ...
34.53%
3.78 B
$ 35.87
United States
Healthcare
79
ENTA
Enanta Pharmaceuticals, Inc.
34.43%
368.13 M
$ 12.66
United States
Healthcare
80
APYX
Apyx Medical Corporation
34.36%
172.10 M
$ 4.11
United States
Healthcare
81
DKS
DICK'S Sporting Goods, Inc.
33.93%
20.85 B
$ 232.96
United States
Consumer Cyclical
82
AMC
AMC Entertainment Holdings,...
33.89%
2.13 B
$ 2.83
United States
Communication Services
83
SEMR
SEMrush Holdings Inc
33.74%
1.81 B
$ 12
United States
Technology
84
MRVI
Maravai LifeSciences Holdin...
33.53%
1.92 B
$ 5.2
United States
Healthcare
85
ORIC
ORIC Pharmaceuticals, Inc.
32.99%
878.86 M
$ 8.49
United States
Healthcare
86
DAO
Youdao, Inc.
32.88%
1.45 B
$ 12.05
China
Consumer Defensive
87
SUPV
Grupo Supervielle S.A.
32.63%
1.08 B
$ 11.38
Argentina
Financial Services
88
BILL
BILL Holdings, Inc.
32.52%
3.23 B
$ 32.47
United States
Technology
89
CMRE
Costamare Inc.
32.29%
1.83 B
$ 15.19
Monaco
Industrials
90
PCTY
Paylocity Holding Corporation
32.25%
5.41 B
$ 101.06
United States
Technology
91
CVAC
CureVac N.V.
31.95%
1.21 B
$ 5.39
Germany
Healthcare
92
ORMP
Oramed Pharmaceuticals Inc.
31.73%
158.79 M
$ 3.88
United States
Healthcare
93
EYPT
EyePoint, Inc.
31.49%
1.14 B
$ 13.58
United States
Healthcare
94
CABA
Cabaletta Bio, Inc.
31.35%
463.08 M
$ 2.84
United States
Healthcare
95
OPCH
Option Care Health, Inc.
31.32%
3.45 B
$ 21.99
United States
Healthcare
96
SCSC
ScanSource, Inc.
31.1%
1.01 B
$ 49.63
United States
Technology
97
M
Macy's, Inc.
31.09%
6.35 B
$ 24.14
United States
Consumer Cyclical
98
CCRN
Cross Country Healthcare, Inc.
31.02%
425.48 M
$ 13.17
United States
Healthcare
99
GOGO
Gogo Inc.
30.71%
461.16 M
$ 3.41
United States
Communication Services
100
NVAX
Novavax, Inc.
30.55%
1.50 B
$ 9.13
United States
Healthcare
For the most accurate results, consider cross-referencing our data with other sources.

Frequently Asked Questions

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

MNTS (Momentus Inc.) has the highest monthly gain in this ranking for August 2021, with a gain of 9,999%. Top performers this month include MNTS, CYBN, INDP.

Q What stocks gained the most in August 2021?
A

The biggest gainers in August 2021 were: MNTS (+9,999%), CYBN (+3,246%), INDP (+2,577%), GDEV (+758%), FULC (+306%). 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 sectors performed best in August 2021?
A

The top performing sectors in August 2021 included Industrials, Healthcare, Communication Services, based on the stocks with highest monthly gains. MNTS led the Industrials 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 market activity across NYSE and NASDAQ.

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.