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MARKET LEADERS
52-WEEK LEADER
BW +3108%
Babcock & Wilcox Enter..
2021 YTD LEADER
MINE +9999%
Mayfair Gold Corp.
AUG 2021 LEADER
CYBN +3246%
Cybin Inc.
📈 52-Week Top 5 Full List →
1 BW +3108.2% 2 BE +1613.1% 3 PL +917.3% 4 AMPX +828.8% 5 WOLF +611.9%
📅 2021 YTD Top 5 Full List →
1 MINE +9999.0% 2 SNWV +8830.1% 3 CLS +4660.3% 4 GEN +3724.2% 5 AEHR +3280.6%
🗓 August 2021 Top 5 Full List →
1 CYBN +3245.9% 2 GDEV +758.4% 3 FULC +306.3% 4 RGC +273.4% 5 TASK +108.3%
Quick Access: 52-Week 2021 YTD Aug 2021 Market Cap Dividends
#1 CYBN leads with +3,246% August 2021

CYBN (Cybin Inc.) is the best performing stock in August 2021. Following are GDEV (+758%) and FULC (+306%). Top performing sectors: Communication Services (+279% avg, 1 in top 10), Healthcare (+133% avg, 6 in top 10), Utilities (+62% avg).

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 April 30, 2026 at 9:09 AM EDT

Rank
Symbol
Company Name
Aug Gain
Market Cap
Price
Country
Sector
1
CYBN
Cybin Inc.
3245.91%
148.61 M
$ 6.01
Canada
Healthcare
2
GDEV
GDEV Inc.
758.43%
291.68 M
$ 16.07
Cyprus
Communication Services
3
FULC
Fulcrum Therapeutics, Inc.
306.29%
495.75 M
$ 7.44
United States
Healthcare
4
RGC
Regencell Bioscience Holdin...
273.36%
14.36 B
$ 29.05
Hong Kong
Healthcare
5
TASK
TaskUs, Inc.
108.28%
579.49 M
$ 6.33
United States
Technology
6
DVAX
Dynavax Technologies Corp
105.93%
1.82 B
$ 15.5
United States
Healthcare
7
BMNR
Bitmine Immersion Technolog...
104.55%
12.23 B
$ 21.48
United States
Financial Services
8
SKYT
SkyWater Technology, Inc.
89.87%
1.53 B
$ 31.16
United States
Technology
9
VALN
Valneva SE
82.57%
480.43 M
$ 5.53
France
Healthcare
10
TERN
Terns Pharmaceuticals, Inc.
78.28%
6.12 B
$ 52.94
United States
Healthcare
11
MNDY
monday.com Ltd.
77.2%
3.47 B
$ 67.25
Israel
Technology
12
UPST
Upstart Holdings, Inc.
71.74%
3.14 B
$ 32.86
United States
Financial Services
13
LWAC
LightWave Acquisition Corp.
71.69%
306.01 M
$ 10.175
United States
Financial Services
14
RANI
Rani Therapeutics Holdings,...
71.53%
108.42 M
$ 0.868
United States
Healthcare
15
PMTS
CPI Card Group Inc.
70.59%
208.12 M
$ 18.16
United States
Financial Services
16
NUVL
Nuvalent, Inc.
66.27%
8.01 B
$ 101.94
United States
Healthcare
17
BASE
Couchbase, Inc.
66.27%
1.35 B
$ 24.42
United States
Technology
18
CRDL
Cardiol Therapeutics Inc.
66.15%
153.00 M
$ 1.37
Canada
Healthcare
19
HUT
Hut 8 Corp.
64.78%
8.00 B
$ 72.11
United States
Financial Services
20
ENLV
Enlivex Ltd.
63.06%
199.11 M
$ 0.826
Israel
Healthcare
21
GAMB
Gambling.com Group Limited
63.05%
137.23 M
$ 3.91
Jersey
Consumer Cyclical
22
ALT
Altimmune, Inc.
62.23%
532.53 M
$ 2.74
United States
Healthcare
23
EDN
Empresa Distribuidora y Com...
61.97%
1.20 B
$ 25.22
Argentina
Utilities
24
SITM
SiTime Corporation
59.13%
13.61 B
$ 515.67
United States
Technology
25
BEBE
TGE Value Creative Solution...
58.88%
198.60 M
$ 9.93
France
Financial Services
26
ARCT
Arcturus Therapeutics Holdi...
58.14%
252.11 M
$ 8.87
United States
Healthcare
27
DOCS
Doximity, Inc.
55.93%
4.63 B
$ 24.57
United States
Healthcare
28
CRBU
Caribou Biosciences, Inc.
55.34%
205.26 M
$ 2.08
United States
Healthcare
29
TVTX
Travere Therapeutics, Inc.
53.09%
3.78 B
$ 40.89
United States
Healthcare
30
EDIT
Editas Medicine, Inc.
53.08%
299.49 M
$ 3.06
United States
Healthcare
31
REKR
Rekor Systems, Inc.
50.41%
111.69 M
$ 0.8178
United States
Technology
32
RYI
Ryerson Holding Corp
50.23%
907.09 M
$ 28.16
United States
Industrials
33
LWLG
Lightwave Logic, Inc.
49.14%
1.74 B
$ 11.56
United States
Basic Materials
34
AFRM
Affirm Holdings, Inc.
48.88%
21.04 B
$ 63.16
United States
Financial Services
35
RSI
Rush Street Interactive, Inc.
48.21%
5.59 B
$ 24
United States
Consumer Cyclical
36
ARRY
Array Technologies, Inc.
47.15%
1.21 B
$ 7.93
United States
Technology
37
SD
SandRidge Energy, Inc.
47.11%
572.60 M
$ 15.51
United States
Energy
38
SNDA
Sonida Senior Living, Inc.
46.58%
1.79 B
$ 37.8
United States
Healthcare
39
HUMA
Humacyte, Inc.
46.49%
188.16 M
$ 0.8475
United States
Healthcare
40
MRUS
Merus N.V.
46.35%
5.28 B
$ 69.8
Netherlands
Healthcare
41
ATLC
Atlanticus Holdings Corpora...
45.78%
1.18 B
$ 79.18
United States
Financial Services
42
FHTX
Foghorn Therapeutics Inc.
45.35%
303.48 M
$ 5.17
United States
Healthcare
43
SANA
Sana Biotechnology, Inc.
44.95%
904.47 M
$ 3.35
United States
Healthcare
44
BBAR
Banco BBVA Argentina S.A.
44.52%
3.02 B
$ 14.77
Argentina
Financial Services
45
GSAT
Globalstar, Inc.
44.2%
10.44 B
$ 81.28
United States
Communication Services
46
VSCO
Victoria's Secret & Co.
44.16%
4.16 B
$ 51.73
United States
Consumer Cyclical
47
GSM
Ferroglobe PLC
44.02%
870.77 M
$ 4.66
United Kingdom
Basic Materials
48
IMRX
Immuneering Corporation
43.94%
338.37 M
$ 5.23
United States
Healthcare
49
MARA
MARA Holdings, Inc.
43.78%
4.19 B
$ 11.02
United States
Financial Services
50
VIR
Vir Biotechnology, Inc.
43.73%
1.66 B
$ 10.28
United States
Healthcare
51
LRMR
Larimar Therapeutics, Inc.
42.9%
457.08 M
$ 4.4
United States
Healthcare
52
CDTX
Cidara Therapeutics, Inc.
42.86%
1.64 B
$ 64.87
United States
Healthcare
53
ATOM
Atomera Incorporated
42.52%
283.06 M
$ 7.31
United States
Technology
54
SKIN
SkinHealth Systems Inc.
42.52%
108.27 M
$ 0.8355
United States
Consumer Defensive
55
LAC
Lithium Americas Corp.
41.41%
1.71 B
$ 4.92
Canada
Basic Materials
56
ADCT
ADC Therapeutics SA
40.85%
479.50 M
$ 3.77
Switzerland
Healthcare
57
AMR
Alpha Metallurgical Resourc...
40.43%
2.49 B
$ 195.39
United States
Basic Materials
58
DLO
DLocal Limited
40.23%
4.01 B
$ 13.6
Uruguay
Technology
59
BMA
Banco Macro S.A.
39.55%
4.82 B
$ 75.45
Argentina
Financial Services
60
SPRO
Spero Therapeutics, Inc.
39.29%
154.60 M
$ 2.67
United States
Healthcare
61
GLUE
Monte Rosa Therapeutics, Inc.
39.03%
1.52 B
$ 19.01
United States
Healthcare
62
BWIN
The Baldwin Insurance Group...
38.88%
2.32 B
$ 23.72
United States
Financial Services
63
TSSI
TSS, Inc.
38.64%
438.97 M
$ 15.21
United States
Technology
64
GME
GameStop Corp.
38.43%
11.25 B
$ 25.09
United States
Consumer Cyclical
65
GGAL
Grupo Financiero Galicia S.A.
38.38%
7.39 B
$ 43.59
Argentina
Financial Services
66
AQST
Aquestive Therapeutics, Inc.
38.37%
508.32 M
$ 4.09
United States
Healthcare
67
COGT
Cogent Biosciences, Inc.
38.23%
6.21 B
$ 36.34
United States
Healthcare
68
BXC
BlueLinx Holdings Inc.
37.6%
441.66 M
$ 56.14
United States
Industrials
69
ACI
Albertsons Companies, Inc.
37.56%
8.39 B
$ 16.56
United States
Consumer Defensive
70
YMM
Full Truck Alliance Co. Ltd.
37.44%
9.05 B
$ 8.65
China
Technology
71
FLYW
Flywire Corporation
37%
1.67 B
$ 13.58
United States
Technology
72
GLOB
Globant S.A.
36.91%
1.77 B
$ 41.02
Luxembourg
Technology
73
SPT
Sprout Social, Inc.
36.71%
364.70 M
$ 6.07
United States
Technology
74
BTU
Peabody Energy Corporation
36.58%
3.28 B
$ 26.9
United States
Energy
75
ZNTL
Zentalis Pharmaceuticals, Inc.
35.92%
287.27 M
$ 4.05
United States
Healthcare
76
METC
Ramaco Resources, Inc.
34.99%
956.26 M
$ 14.56
United States
Basic Materials
77
BITF
Bitfarms Ltd
34.78%
1.20 B
$ 1.98
United States
Financial Services
78
CRDF
Cardiff Oncology, Inc.
34.74%
114.86 M
$ 1.68
United States
Healthcare
79
CFLT
Confluent, Inc.
34.59%
11.13 B
$ 30.99
United States
Technology
80
CRNX
Crinetics Pharmaceuticals, ...
34.53%
3.99 B
$ 38.15
United States
Healthcare
81
ENTA
Enanta Pharmaceuticals, Inc.
34.43%
397.86 M
$ 13.71
United States
Healthcare
82
APYX
Apyx Medical Corporation
34.36%
153.51 M
$ 3.67
United States
Healthcare
83
DKS
DICK'S Sporting Goods, Inc.
33.93%
20.36 B
$ 226.34
United States
Consumer Cyclical
84
AMC
AMC Entertainment Holdings,...
33.89%
955.79 M
$ 1.64
United States
Communication Services
85
SEMR
Semrush Holdings, Inc.
33.74%
1.81 B
$ 12
United States
Technology
86
MRVI
Maravai LifeSciences Holdin...
33.53%
525.09 M
$ 3.56
United States
Healthcare
87
ORIC
ORIC Pharmaceuticals, Inc.
32.99%
1.08 B
$ 9.65
United States
Healthcare
88
DAO
Youdao, Inc.
32.88%
1.35 B
$ 11.18
China
Consumer Defensive
89
SUPV
Grupo Supervielle S.A.
32.63%
843.01 M
$ 8.92
Argentina
Financial Services
90
BILL
BILL Holdings, Inc.
32.52%
3.73 B
$ 37.73
United States
Technology
91
CMRE
Costamare Inc.
32.29%
1.99 B
$ 16.51
Monaco
Industrials
92
PCTY
Paylocity Holding Corporation
32.25%
5.56 B
$ 102.27
United States
Technology
93
CVAC
CureVac N.V.
31.95%
1.21 B
$ 5.39
Germany
Healthcare
94
ORMP
Oramed Pharmaceuticals Inc.
31.73%
163.00 M
$ 4.03
United States
Healthcare
95
EYPT
EyePoint, Inc.
31.49%
1.12 B
$ 13.47
United States
Healthcare
96
CABA
Cabaletta Bio, Inc.
31.35%
318.38 M
$ 2.86
United States
Healthcare
97
OPCH
Option Care Health, Inc.
31.32%
4.34 B
$ 27.77
United States
Healthcare
98
SCSC
ScanSource, Inc.
31.1%
892.62 M
$ 40.68
United States
Technology
99
M
Macy's, Inc.
31.09%
5.12 B
$ 19.43
United States
Consumer Cyclical
100
CCRN
Cross Country Healthcare, Inc.
31.02%
328.43 M
$ 10.2
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

CYBN (Cybin Inc.) has the highest monthly gain in this ranking for August 2021, with a gain of 3,246%. Top performers this month include CYBN, GDEV, FULC.

Q What stocks gained the most in August 2021?
A

The biggest gainers in August 2021 were: CYBN (+3,246%), GDEV (+758%), FULC (+306%), RGC (+273%), TASK (+108%). 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 Healthcare, Communication Services, Technology, based on the stocks with highest monthly gains. CYBN 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 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.