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Top Stock Gainers September 2023 - Monthly Performance Ranked

The top US-listed stocks of September 2023 by monthly gain, on split-adjusted closes. Ranks 3,902 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.

2023
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

September 2023 ranking, complete through September 29, 2023

The same month on news: the biggest gains on news in September 2023 and the biggest drops, each ranked by the move on the day its story landed.

21 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
Sep Gain
Market Cap (today)
Price (today)
Country
Sector
1
SLNO
Soleno Therapeutics, Inc.
+492.57%
$2.76B
$53.01
United States
Healthcare
2
THTX
Theratechnologies Inc.
+128.12%
$150.81M
$3.28
Canada
Healthcare
3
GPCR
Structure Therapeutics Inc.
+71.67%
$1.56B
$21.88
United States
Healthcare
4
CYBN
Cybin Inc.
+70.87%
$148.61M
$6.01
Canada
Healthcare
5
VIRC
Virco Mfg. Corporation
+70.75%
$101.36M
$6.43
United States
Consumer Cyclical
6
CRNX
Crinetics Pharmaceuticals, Inc.
+70.53%
$9.01B
$84.95
United States
Healthcare
7
ZJYL
JIN MEDICAL INTERNATIONAL LTD.
+67.23%
$150.82M
$2.02
China
Healthcare
8
IMVT
Immunovant, Inc.
+60.03%
$5.76B
$27.90
United States
Healthcare
9
TNGX
Tango Therapeutics, Inc.
+57.26%
$3.74B
$22.19
United States
Healthcare
10
TKNO
Alpha Teknova, Inc.
+52.46%
$418.23M
$7.79
United States
Healthcare
11
IMMX
Immix Biopharma, Inc.
+49.34%
$705.50M
$8.51
United States
Healthcare
12
LFMD
LifeMD, Inc.
+47.06%
$114.37M
$2.37
United States
Healthcare
13
MTRX
Matrix Service Co
+45.50%
$282.64M
$9.99
United States
Industrials
14
CGC
Canopy Growth Corporation
+42.33%
$321.11M
$0.7147
Canada
Healthcare
15
OBIO
Orchestra BioMed Holdings, Inc.
+39.30%
$338.99M
$5.64
United States
Healthcare
16
BHVN
Biohaven Ltd.
+37.33%
$1.65B
$10.93
United States
Healthcare
17
HITI
High Tide Inc.
+36.03%
$229.99M
$2.58
Canada
Healthcare
18
METC
Ramaco Resources, Inc.
+36.02%
$531.76M
$8.35
United States
Basic Materials
19
ZKIN
ZK International Group Co., Ltd
+35.58%
$103.82M
$1.71
China
Basic Materials
20
NGS
Natural Gas Services Group, Inc.
+35.44%
$403.20M
$31.26
United States
Energy
21
ASPN
Aspen Aerogels, Inc.
+35.22%
$428.22M
$5.16
United States
Basic Materials
22
AVTX
Avalo Therapeutics, Inc.
+32.06%
$634.98M
$11.84
United States
Healthcare
23
MDV
Modiv Industrial, Inc.
+30.90%
$215.10M
$18.05
United States
Real Estate
24
OWLT
Owlet, Inc.
+30.61%
$128.87M
$4.41
United States
Healthcare
25
GRPN
Groupon, Inc.
+30.16%
$722.22M
$17.76
United States
Communication Services
26
MDWD
MediWound Ltd.
+30.07%
$153.76M
$11.91
Israel
Healthcare
27
DERM
Journey Medical Corporation
+29.86%
$149.02M
$5.28
United States
Healthcare
28
MEIP
MEI Pharma, Inc.
+29.34%
$100.81M
$3.07
United States
Healthcare
29
KNOP
KNOT OFFSHORE PARTNERS LP
+28.63%
$339.66M
$9.83
United Kingdom
Energy
30
HSDT
Solana Company
+28.59%
$144.53M
$2.22
United States
Financial Services
31
SN
SharkNinja, Inc.
+28.46%
$26.37B
$186.32
United States
Consumer Cyclical
32
HNRG
Hallador Energy Company
+28.41%
$585.52M
$12.42
United States
Utilities
33
RCKT
Rocket Pharmaceuticals, Inc.
+28.06%
$242.60M
$2.21
United States
Healthcare
34
IMNM
Immunome, Inc.
+27.68%
$2.03B
$17.20
United States
Healthcare
35
EU
enCore Energy Corp.
+27.34%
$164.75M
$0.8480
United States
Energy
36
WVE
Wave Life Sciences Ltd.
+26.65%
$608.88M
$3.09
United States
Healthcare
37
MLKN
MillerKnoll, Inc.
+26.23%
$1.45B
$21.10
United States
Consumer Cyclical
38
RPTX
Repare Therapeutics Inc.
+25.05%
$114.24M
$2.65
Canada
Healthcare
39
AHG
Akso Health Group
+24.84%
$1.18B
$1.38
China
Healthcare
40
IPX
IperionX Limited
+24.46%
$506.41M
$13.98
United States
Basic Materials
41
CCCS
CCC Intelligent Solutions Holdings Inc.
+24.42%
$6.33B
$9.72
United States
Technology
42
ACB
Aurora Cannabis Inc.
+23.97%
$264.00M
$4.17
Canada
Healthcare
43
HCC
Warrior Met Coal, Inc.
+23.92%
$4.75B
$89.98
United States
Basic Materials
44
GIII
G-Iii Apparel Group Ltd
+23.43%
$1.18B
$27.50
United States
Consumer Cyclical
45
AREC
AMERICAN RESOURCES CORP
+22.79%
$130.50M
$1.22
United States
Industrials
46
HRTG
HERITAGE INSURANCE HOLDINGS INC
+22.45%
$1.08B
$36.29
United States
Financial Services
47
NAK
Northern Dynasty Minerals, Ltd.
+22.35%
$532.10M
$0.9466
Canada
Basic Materials
48
CURR
Currenc Group Inc.
+22.22%
$311.02M
$2.77
Singapore
Technology
49
CBUS
Cibus, Inc.
+22.20%
$107.00M
$1.40
United States
Healthcare
50
GLTO
Galecto, Inc.
+21.95%
$1.73B
$28.69
Denmark
Healthcare
51
TAL
TAL Education Group
+21.95%
$6.94B
$12.51
China
Consumer Defensive
52
SCS
Steelcase, Inc.
+21.81%
$1.95B
$17.00
United States
Consumer Cyclical
53
AMR
Alpha Metallurgical Resources, Inc.
+21.80%
$2.21B
$174.51
United States
Basic Materials
54
TOI
The Oncology Institute, Inc.
+21.74%
$512.91M
$5.13
United States
Healthcare
55
ALHC
Alignment Healthcare, Inc.
+20.70%
$1.71B
$8.23
United States
Healthcare
56
BLND
Blend Labs, Inc.
+20.18%
$216.60M
$0.9158
United States
Technology
57
ALTO
Alto Ingredients, Inc.
+20.11%
$287.00M
$3.70
United States
Basic Materials
58
VEON
VEON Ltd.
+20.00%
$5.54B
$80.46
United Arab Emirates
Communication Services
59
MIRM
Mirum Pharmaceuticals, Inc.
+19.52%
$5.19B
$79.96
United States
Healthcare
60
CDTX
Cidara Therapeutics, Inc.
+19.27%
$1.64B
$64.87
United States
Healthcare
61
WALD
Waldencast plc
+19.24%
$111.87M
$0.8794
United Kingdom
Consumer Defensive
62
TALK
Talkspace, Inc.
+18.90%
$870.57M
$5.25
United States
Healthcare
63
PNRG
PrimeEnergy Resources Corporation
+18.44%
$336.38M
$212.55
United States
Energy
64
UEC
Uranium Energy Corp.
+17.05%
$3.82B
$7.70
United States
Energy
65
DNN
Denison Mines Corp
+17.02%
$1.96B
$2.16
Canada
Energy
66
SND
Smart Sand, Inc.
+16.58%
$223.02M
$5.26
United States
Energy
67
OLMA
Olema Pharmaceuticals, Inc.
+16.40%
$594.98M
$6.80
United States
Healthcare
68
ALEC
Alector, Inc.
+16.34%
$209.92M
$1.88
United States
Healthcare
69
BTU
Peabody Energy Corporation
+16.34%
$2.86B
$23.46
United States
Energy
70
EVER
EverQuote, Inc.
+16.24%
$726.29M
$20.61
United States
Communication Services
71
REVG
REV Group, Inc.
+16.03%
$3.12B
$63.90
United States
Industrials
72
DAVA
Endava plc
+15.98%
$101.46M
$1.92
United Kingdom
Technology
73
RNGR
Ranger Energy Services, Inc.
+15.85%
$350.66M
$14.79
United States
Energy
74
NN
NextNav Inc.
+15.77%
$1.81B
$10.74
United States
Technology
75
OPAL
OPAL Fuels Inc.
+15.66%
$274.26M
$1.57
United States
Industrials
76
LEU
Centrus Energy Corp.
+15.62%
$2.45B
$119.95
United States
Energy
77
SLN
Silence Therapeutics Plc
+15.53%
$558.14M
$8.98
United Kingdom
Healthcare
78
NESR
National Energy Services Reunited Corp.
+15.26%
$1.97B
$19.58
United States
Energy
79
BWAY
Brainsway Ltd.
+14.77%
$463.31M
$11.51
Israel
Healthcare
80
IVA
Inventiva S.A.
+14.75%
$677.95M
$2.87
France
Healthcare
81
BKTI
BK Technologies Corporation
+14.72%
$249.31M
$66.14
United States
Technology
82
SMMT
Summit Therapeutics Inc.
+14.72%
$12.07B
$15.13
United States
Healthcare
83
JILL
J.Jill, Inc.
+14.68%
$360.28M
$24.24
United States
Consumer Cyclical
84
WW
WW International, Inc.
+14.60%
$142.68M
$14.27
United States
Healthcare
85
CINT
CI&T Inc
+14.44%
$391.65M
$3.06
Brazil
Technology
86
CECO
Ceco Environmental Corp
+14.32%
$3.65B
$62.39
United States
Industrials
87
ORN
Orion Group Holdings, Inc
+14.29%
$348.26M
$8.60
United States
Industrials
88
CABA
Cabaletta Bio, Inc.
+14.26%
$274.66M
$1.62
United States
Healthcare
89
SE
Sea Limited
+14.10%
$58.38B
$95.31
Singapore
Consumer Cyclical
90
URG
Ur-Energy Inc.
+14.07%
$331.10M
$0.8322
United States
Energy
91
UROY
Uranium Royalty Corp.
+13.89%
$1.43B
$3.74
United States
Energy
92
CPIX
Cumberland Pharmaceuticals Inc
+13.86%
$112.22M
$7.49
United States
Healthcare
93
AVAV
AeroVironment, Inc.
+13.75%
$6.13B
$120.60
United States
Industrials
94
EVEX
Eve Holding, Inc.
+13.72%
$498.34M
$1.43
United States
Industrials
95
VIST
Vista Energy S.A.B. de C.V.
+13.65%
$7.74B
$69.94
Mexico
Energy
96
BBCP
Concrete Pumping Holdings, Inc.
+13.64%
$461.60M
$9.16
United States
Industrials
97
UUUU
Energy Fuels Inc.
+13.54%
$2.21B
$8.34
United States
Energy
98
MBLY
Mobileye Global Inc.
+13.40%
$6.08B
$7.15
Israel
Consumer Cyclical
99
SIGA
SIGA Technologies, Inc.
+13.39%
$222.73M
$3.10
United States
Healthcare
100
PKE
Park Aerospace Corp.
+13.36%
$572.49M
$26.32
United States
Industrials
S&P 500 fund (SPY) -5.25%
Finished higher 17% of 3,902
Median move -6.2%
Leading sector Energy -0.4% median
Lagging sector Healthcare -9.3% median

Over September 2023, 17% of the 3,902 ranked companies finished higher and the median move was -6.2%; Energy led on median (-0.4%) and Healthcare lagged (-9.3%). The S&P 500 fund (SPY) moved -5.25% between its Sep 1, 2023 and Sep 29, 2023 closes. Each ranked company's gain runs from its own first close inside the period, so a company listed later in the period is measured over a shorter window.

Top gain on this page +492.57% SLNO
Rows on this page 100 ranks 1–100
Page 1 of 40
Period September 2023 closed

Best performing large-cap stocks in September 2023

SN SharkNinja, Inc. +28.46% $26.37B
SMMT Summit Therapeutics Inc. +14.72% $12.07B
SE Sea Limited +14.10% $58.38B
CNC Centene Corporation +12.42% $34.66B
CASY Casey's General Stores, Inc. +11.63% $24.16B

September 2023 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 September 2023. 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 SLNO leads with +493% September 2023

Among the 3,902 NYSE, Nasdaq and NYSE American stocks currently eligible for this ranking, SLNO (Soleno Therapeutics, Inc.) has the highest gain in September 2023 with +493%. Following are THTX (+128%) and GPCR (+72%). Top performing sectors: Healthcare (+45% avg, 9 in top 10), Real Estate (+31% avg), Utilities (+28% avg).

MARKET LEADERS
52-WEEK LEADER
MGRT +1886%
Mega Fortune Company L..
2023 YTD LEADER
ZJYL +3020%
JIN MEDICAL INTERNATIO..
SEP 2023 LEADER
SLNO +493%
Soleno Therapeutics, I..
52-Week Top 5 Full List →
1 MGRT +1885.7% 2 AXTI +1184.0% 3 SNDK +895.2% 4 MRNA +809.3% 5 ANL +637.2%
2023 YTD Top 5 Full List →
1 ZJYL +3020.1% 2 SLNO +1737.9% 3 CVNA +1043.4% 4 AAOI +927.7% 5 ENLT +876.5%
September 2023 Top 5 Full List →
1 SLNO +492.6% 2 THTX +128.1% 3 GPCR +71.7% 4 CYBN +70.9% 5 VIRC +70.8%
Quick Access: 52-Week 2023 YTD Sep 2023 Market Cap Dividends

This ranking shows the top performing stocks and biggest stock gainers during September 2023, 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.

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.
What this ranking covers
Universe
US-listed companies on NYSE, Nasdaq and NYSE American.
Floors
Market cap of at least $100 million, and one close inside the month to measure from.
Exclusions
Stocks whose price history is under review are withheld, and their count is stated above.
Measured on
Split-adjusted closes, from the first close inside the month to the last one in it.
Refreshed
Rebuilt once the session behind those closes has settled. The date above the table names that session, not the moment the table was written.

Frequently Asked Questions

Q Which stock has gained the most in September 2023?
A

SLNO (Soleno Therapeutics, Inc.) has the highest monthly gain in this ranking for September 2023, with a gain of 493%. Top performers this month include SLNO, THTX, GPCR.

Q What stocks gained the most in September 2023?
A

The biggest gainers in September 2023 were: SLNO (+493%), THTX (+128%), GPCR (+72%), CYBN (+71%), VIRC (+71%). 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 2023. 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 2023. 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

3,902 companies with a market capitalization above $100 million traded on NYSE, Nasdaq and NYSE American, each with at least one trading day inside September 2023. 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 September 2023?
A

The five highest-gaining companies in September 2023 sit in Healthcare, Consumer Cyclical, with the leader SLNO in Healthcare. That describes the top of this list, not a sector ranking; the market-context strip above the table reports the median move of each sector's ranked companies.

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 closing price on its first trading day, both split-adjusted. A company whose trading history begins inside the month is measured from its first close.

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 2023. 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.