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MARKET LEADERS
52-WEEK LEADER
BW +3274%
Babcock & Wilcox Enter..
2021 YTD LEADER
MINE +9999%
Mayfair Gold Corp.
SEP 2021 LEADER
ARQQ +5803%
Arqit Quantum Inc.
📈 52-Week Top 5 Full List →
1 BW +3273.6% 2 BE +1623.6% 3 PL +953.3% 4 AMPX +796.2% 5 CIEN +624.2%
📅 2021 YTD Top 5 Full List →
1 MINE +9999.0% 2 SNWV +8701.1% 3 CLS +5078.1% 4 GEN +3754.2% 5 AEHR +3642.2%
🗓 September 2021 Top 5 Full List →
1 ARQQ +5802.9% 2 DNA +4549.9% 3 IVT +1456.7% 4 BKSY +724.7% 5 CRVS +107.7%
Quick Access: 52-Week 2021 YTD Sep 2021 Market Cap Dividends
#1 ARQQ leads with +5,803% September 2021

ARQQ (Arqit Quantum Inc.) is the best performing stock in September 2021. Following are DNA (+4,550%) and IVT (+1,457%). Top performing sectors: Real Estate (+1457% avg, 1 in top 10), Technology (+760% avg, 2 in top 10), Healthcare (+261% avg, 3 in top 10).

Top Stock Gainers September 2021 - Monthly Performance Ranked

Track the top performing stocks of September 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 September 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.

September 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 September 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 9:36 PM EDT

Rank
Symbol
Company Name
Sep Gain
Market Cap
Price
Country
Sector
1
ARQQ
Arqit Quantum Inc.
5802.94%
224.76 M
$ 14.36
United Kingdom
Technology
2
DNA
Ginkgo Bioworks Holdings, Inc.
4549.95%
523.88 M
$ 8.46
United States
Healthcare
3
IVT
InvenTrust Properties Corp.
1456.67%
2.50 B
$ 32.12
United States
Real Estate
4
BKSY
BlackSky Technology Inc.
724.7%
1.32 B
$ 35.48
United States
Industrials
5
CRVS
Corvus Pharmaceuticals, Inc.
107.73%
1.28 B
$ 15.19
United States
Healthcare
6
AEHR
Aehr Test Systems, Inc.
93.62%
2.85 B
$ 90.56
United States
Technology
7
BMNR
Bitmine Immersion Technolog...
70.5%
12.19 B
$ 21.4
United States
Financial Services
8
IPHA
Innate Pharma S.A.
70.44%
135.11 M
$ 1.44
France
Healthcare
9
LIFE
Ethos Technologies Inc.
66.3%
1.10 B
$ 17.54
United States
Financial Services
10
CRK
Comstock Resources, Inc.
65.87%
5.12 B
$ 17.42
United States
Energy
11
IMNM
Immunome, Inc.
62.99%
2.60 B
$ 22.94
United States
Healthcare
12
BTE
Baytex Energy Corp.
60.59%
3.74 B
$ 5.06
Canada
Energy
13
RKLB
Rocket Lab Corporation
59.07%
47.69 B
$ 82.51
United States
Industrials
14
AMTX
Aemetis, Inc.
55.57%
214.66 M
$ 3.15
United States
Basic Materials
15
VTLE
Vital Energy, Inc.
50.38%
648.56 M
$ 16.76
United States
Energy
16
VET
Vermilion Energy Inc.
50.23%
2.06 B
$ 13.46
Canada
Energy
17
ELVA
Electrovaya Inc.
49.25%
457.30 M
$ 9.26
Canada
Industrials
18
RRC
Range Resources Corporation
45.91%
10.25 B
$ 43.5
United States
Energy
19
SD
SandRidge Energy, Inc.
43.44%
574.08 M
$ 15.55
United States
Energy
20
ESEA
Euroseas Ltd.
43.23%
493.98 M
$ 70.01
Greece
Industrials
21
AMPY
Amplify Energy Corp.
43.01%
264.24 M
$ 6.4
United States
Energy
22
LCID
Lucid Group, Inc.
42.66%
2.33 B
$ 6.37
United States
Consumer Cyclical
23
NGL
NGL Energy Partners LP
41.92%
2.01 B
$ 16.2
United States
Energy
24
CURR
CURRENC Group Inc.
40.25%
272.74 M
$ 3.56
Singapore
Technology
25
NCMI
National CineMedia, Inc.
40.16%
316.22 M
$ 3.39
United States
Communication Services
26
SM
SM Energy Company
39.95%
7.49 B
$ 31.23
United States
Energy
27
UPST
Upstart Holdings, Inc.
39.52%
2.92 B
$ 30.48
United States
Financial Services
28
METC
Ramaco Resources, Inc.
39.25%
975.31 M
$ 14.85
United States
Basic Materials
29
GTE
Gran Tierra Energy Inc.
37.27%
326.87 M
$ 9.26
Canada
Energy
30
OBE
Obsidian Energy Ltd.
36.78%
964.92 M
$ 14.28
Canada
Energy
31
CADL
Candel Therapeutics, Inc.
36.01%
452.67 M
$ 6.18
United States
Healthcare
32
ASAN
Asana, Inc.
34.37%
1.50 B
$ 6.32
United States
Technology
33
TKNO
Alpha Teknova, Inc.
34.11%
173.16 M
$ 3.23
United States
Healthcare
34
AZ
A2Z Cust2Mate Solutions Corp.
33.87%
317.16 M
$ 7.12
Canada
Technology
35
PBF
PBF Energy Inc.
33.85%
5.09 B
$ 43.36
United States
Energy
36
CTRA
Coterra Energy Inc.
33.83%
27.27 B
$ 35.91
United States
Energy
37
MTDR
Matador Resources Company
33.43%
7.88 B
$ 63.44
United States
Energy
38
MNTK
Montauk Renewables, Inc.
33.37%
209.14 M
$ 1.46
United States
Basic Materials
39
RNA
Atrium Therapeutics, Inc.
33.28%
198.13 M
$ 12.77
United States
Healthcare
40
PR
Permian Resources Corporation
32.94%
18.98 B
$ 21.62
United States
Energy
41
BLUW
Blue Water Acquisition Corp...
31.56%
331.48 M
$ 10.26
United States
Financial Services
42
UNFI
United Natural Foods, Inc.
31.33%
2.98 B
$ 48.92
United States
Consumer Defensive
43
URG
Ur-Energy Inc.
31.3%
667.52 M
$ 1.68
United States
Energy
44
LEU
Centrus Energy Corp.
31.27%
4.15 B
$ 210.96
United States
Energy
45
LEGN
Legend Biotech Corporation
30.88%
4.35 B
$ 23.52
United States
Healthcare
46
RSI
Rush Street Interactive, Inc.
30.59%
6.54 B
$ 28.1
United States
Consumer Cyclical
47
AUPH
Aurinia Pharmaceuticals Inc.
30.33%
2.00 B
$ 15.385
Canada
Healthcare
48
HNRG
Hallador Energy Company
29.82%
731.93 M
$ 15.53
United States
Energy
49
ONDS
Ondas Inc.
29.38%
4.89 B
$ 10.04
United States
Technology
50
GOGO
Gogo Inc.
29.3%
565.30 M
$ 4.18
United States
Communication Services
51
PED
PEDEVCO Corp.
28.7%
212.55 M
$ 15.98
United States
Energy
52
SB
Safe Bulkers, Inc.
28.61%
689.69 M
$ 6.74
Monaco
Industrials
53
AR
Antero Resources Corporation
28.13%
12.16 B
$ 39.26
United States
Energy
54
FANG
Diamondback Energy, Inc.
27.66%
57.85 B
$ 205.63
United States
Energy
55
NOG
Northern Oil and Gas, Inc.
27.23%
2.87 B
$ 27.16
United States
Energy
56
OPRX
OptimizeRx Corporation
27.1%
116.89 M
$ 6.23
United States
Healthcare
57
PDS
Precision Drilling Corporation
26.88%
1.21 B
$ 93.33
Canada
Energy
58
MEC
Mayville Engineering Compan...
26.86%
463.46 M
$ 22.81
United States
Industrials
59
WFRD
Weatherford International plc
26.82%
7.71 B
$ 107.14
United States
Energy
60
UUUU
Energy Fuels Inc.
26.49%
4.86 B
$ 19.58
United States
Energy
61
SPIR
Spire Global, Inc.
26.44%
609.16 M
$ 15.81
United States
Industrials
62
DRUG
Bright Minds Biosciences Inc.
26.28%
860.78 M
$ 87.95
United States
Healthcare
63
EPSN
Epsilon Energy Ltd.
26.27%
192.38 M
$ 6.36
United States
Energy
64
PRQR
ProQR Therapeutics N.V.
26.05%
165.42 M
$ 1.57
Netherlands
Healthcare
65
HRI
Herc Holdings Inc.
25.98%
4.24 B
$ 126.92
United States
Industrials
66
AMR
Alpha Metallurgical Resourc...
25.95%
2.38 B
$ 186.45
United States
Basic Materials
67
RES
RPC, Inc.
25.91%
1.75 B
$ 7.88
United States
Energy
68
DWSN
Dawson Geophysical Company
25.76%
102.78 M
$ 3.31
United States
Energy
69
DVN
Devon Energy Corporation
25.74%
31.92 B
$ 51.37
United States
Energy
70
ARLP
Alliance Resource Partners,...
25.52%
3.42 B
$ 26.61
United States
Energy
71
LXU
LSB Industries, Inc.
25.28%
1.07 B
$ 14.9
United States
Basic Materials
72
GEL
Genesis Energy, L.P.
25.25%
2.13 B
$ 17.39
United States
Energy
73
IVVD
Invivyd, Inc.
25.16%
395.93 M
$ 1.4
United States
Healthcare
74
CAR
Avis Budget Group, Inc.
25.05%
6.38 B
$ 180.67
United States
Industrials
75
VRDN
Viridian Therapeutics, Inc.
24.91%
1.37 B
$ 13.3
United States
Healthcare
76
EVH
Evolent Health, Inc.
24.9%
427.57 M
$ 3.75
United States
Healthcare
77
KOS
Kosmos Energy Ltd.
24.89%
1.83 B
$ 3.08
United States
Energy
78
ABUS
Arbutus Biopharma Corporation
24.71%
827.15 M
$ 4.2
United States
Healthcare
79
RGNX
REGENXBIO Inc.
24.69%
463.01 M
$ 8.97
United States
Healthcare
80
ASLE
AerSale Corporation
24.45%
317.54 M
$ 6.72
United States
Industrials
81
CF
CF Industries Holdings, Inc.
24.1%
19.08 B
$ 124.2
United States
Basic Materials
82
MEOH
Methanex Corporation
24.03%
5.07 B
$ 65.54
Canada
Basic Materials
83
COP
ConocoPhillips
24.01%
153.31 B
$ 125.78
United States
Energy
84
RNGR
Ranger Energy Services, Inc.
23.66%
414.88 M
$ 17.46
United States
Energy
85
UROY
Uranium Royalty Corp.
23.63%
531.71 M
$ 3.63
Canada
Energy
86
ACMR
ACM Research, Inc.
23.55%
3.42 B
$ 51.69
United States
Technology
87
AFRM
Affirm Holdings, Inc.
23.48%
21.41 B
$ 64.28
United States
Financial Services
88
RCAT
Red Cat Holdings, Inc.
23.4%
1.42 B
$ 11.72
United States
Industrials
89
MEG
Montrose Environmental Grou...
23.33%
761.37 M
$ 21.05
United States
Industrials
90
APYX
Apyx Medical Corporation
23.33%
139.29 M
$ 3.33
United States
Healthcare
91
HUSA
Houston American Energy Corp.
23.24%
239.27 M
$ 7.07
United States
Energy
92
SLI
Standard Lithium Ltd.
23.18%
899.18 M
$ 3.7
Canada
Basic Materials
93
NCSM
NCS Multistage Holdings, Inc.
23.17%
143.48 M
$ 54.67
United States
Energy
94
MIRM
Mirum Pharmaceuticals, Inc.
23.11%
5.93 B
$ 97.31
United States
Healthcare
95
AHG
Akso Health Group
23.08%
1.88 B
$ 2.19
China
Healthcare
96
DOCN
DigitalOcean Holdings, Inc.
23.01%
10.06 B
$ 96.43
United States
Technology
97
FRO
Frontline plc
22.97%
8.12 B
$ 36.49
Cyprus
Energy
98
REI
Ring Energy, Inc.
22.92%
393.66 M
$ 1.88
United States
Energy
99
PMTS
CPI Card Group Inc.
22.9%
202.96 M
$ 17.71
United States
Financial Services
100
AMRK
A-Mark Precious Metals, Inc.
22.59%
615.86 M
$ 25.01
United States
Financial Services
For the most accurate results, consider cross-referencing our data with other sources.

Frequently Asked Questions

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

ARQQ (Arqit Quantum Inc.) has the highest monthly gain in this ranking for September 2021, with a gain of 5,803%. Top performers this month include ARQQ, DNA, IVT.

Q What stocks gained the most in September 2021?
A

The biggest gainers in September 2021 were: ARQQ (+5,803%), DNA (+4,550%), IVT (+1,457%), BKSY (+725%), CRVS (+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 September 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 September 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 September 2021?
A

The top performing sectors in September 2021 included Technology, Healthcare, Real Estate, based on the stocks with highest monthly gains. ARQQ led the Technology 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 September 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.