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MARKET LEADERS
52-WEEK LEADER
BW +2380%
Babcock & Wilcox Enter..
2025 YTD LEADER
RGC +9999%
Regencell Bioscience H..
DEC 2025 LEADER
AFJK +602%
Aimei Health Technolog..
📈 52-Week Top 5 Full List →
1 BW +2380.0% 2 WOLF +1796.2% 3 BE +1253.8% 4 PL +978.0% 5 CIEN +547.2%
📅 2025 YTD Top 5 Full List →
1 RGC +9999.0% 2 AXTI +4734.7% 3 NBTX +1606.2% 4 ABVX +1457.6% 5 HYMC +1427.6%
🗓 December 2025 Top 5 Full List →
1 AFJK +601.9% 2 SIDU +395.0% 3 CAPR +334.0% 4 VELO +178.4% 5 GLSI +155.0%
Quick Access: 52-Week 2025 YTD Dec 2025 Market Cap Dividends
#1 AFJK leads with +602% December 2025

AFJK (Aimei Health Technology Co., Ltd) is the best performing stock in December 2025. Following are SIDU (+395%) and CAPR (+334%). Top performing sectors: Financial Services (+155% avg, 2 in top 10), Industrials (+83% avg, 2 in top 10), Healthcare (+68% avg, 5 in top 10).

Top Stock Gainers December 2025 - Monthly Performance Ranked

Track the top performing stocks of December 2025 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.
2025
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

This ranking shows the top performing stocks and biggest stock gainers during December 2025, 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.

December 2025 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 December 2025. 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 May 19, 2026 at 4:47 AM EDT

Rank
Symbol
Company Name
Dec Gain
Market Cap
Price
Country
Sector
1
AFJK
Aimei Health Technology Co....
601.86%
129.82 M
$ 41
United States
Financial Services
2
SIDU
Sidus Space, Inc.
394.96%
324.27 M
$ 4.01
United States
Industrials
3
CAPR
Capricor Therapeutics, Inc.
333.98%
1.67 B
$ 28.79
United States
Healthcare
4
VELO
Velo3D, Inc.
178.42%
554.00 M
$ 18.59
United States
Technology
5
GLSI
Greenwich LifeSciences, Inc.
154.98%
376.98 M
$ 27.21
United States
Healthcare
6
SLS
SELLAS Life Sciences Group,...
151.33%
1.32 B
$ 7.08
United States
Healthcare
7
TROO
TROOPS, Inc.
144.27%
510.63 M
$ 4.18
Hong Kong
Financial Services
8
WVE
Wave Life Sciences Ltd.
129.42%
1.30 B
$ 6.77
Singapore
Healthcare
9
CLYM
Climb Bio, Inc.
123.46%
618.41 M
$ 10.8
United States
Healthcare
10
AP
Ampco-Pittsburgh Corporation
114.92%
220.54 M
$ 10.85
United States
Industrials
11
HYMC
Hycroft Mining Holding Corp...
101.27%
3.30 B
$ 36.16
United States
Basic Materials
12
GPCR
Structure Therapeutics Inc.
101.19%
2.75 B
$ 38.69
United States
Healthcare
13
ISSC
Innovative Aerosystems, Inc.
99.16%
289.34 M
$ 16.275
United States
Industrials
14
FEIM
Frequency Electronics, Inc.
92.97%
562.76 M
$ 57.18
United States
Technology
15
CV
CapsoVision, Inc.
91.58%
321.78 M
$ 6.455
United States
Healthcare
16
SOC
Sable Offshore Corp.
88.31%
2.34 B
$ 15.13
United States
Energy
17
PRLD
Prelude Therapeutics Incorp...
87.1%
356.81 M
$ 4.48
United States
Healthcare
18
KDK
Kodiak AI, Inc.
84.15%
1.44 B
$ 8.11
United States
Technology
19
IPSC
Century Therapeutics, Inc.
83.44%
422.03 M
$ 2.34
United States
Healthcare
20
EQ
Equillium, Inc.
80.23%
137.83 M
$ 2.18
United States
Healthcare
21
EB
Eventbrite Inc
79.44%
452.96 M
$ 4.51
United States
Communication Services
22
OPTX
Syntec Optics Holdings, Inc.
78.75%
298.68 M
$ 7.16
United States
Technology
23
OMER
Omeros Corporation
77.43%
886.60 M
$ 12.25
United States
Healthcare
24
RGC
Regencell Bioscience Holdin...
75.73%
14.13 B
$ 28.58
Hong Kong
Healthcare
25
VNDA
Vanda Pharmaceuticals Inc.
75.7%
377.65 M
$ 6.28
United States
Healthcare
26
DBI
Designer Brands Inc.
75.65%
325.30 M
$ 6.41
United States
Consumer Cyclical
27
LUNR
Intuitive Machines, Inc.
75.27%
5.42 B
$ 33.89
United States
Industrials
28
RKLB
Rocket Lab Corporation
72.8%
72.21 B
$ 124.77
United States
Industrials
29
GOAI
Eva Live, Inc.
72.41%
128.24 M
$ 3.51
United States
Technology
30
ELVA
Electrovaya Inc.
71.74%
471.62 M
$ 9.55
Canada
Industrials
31
SNCR
Synchronoss Technologies, Inc.
70.52%
103.56 M
$ 9
United States
Technology
32
VOR
Vor Biopharma Inc.
70.31%
792.74 M
$ 14.63
United States
Healthcare
33
VTVT
vTv Therapeutics Inc.
70.17%
140.59 M
$ 35.695
United States
Healthcare
34
PL
Planet Labs PBC
68.55%
14.83 B
$ 41.62
United States
Industrials
35
CMTL
Comtech Telecommunications ...
67.94%
111.80 M
$ 3.76
United States
Technology
36
RENT
Rent the Runway, Inc.
62.42%
127.48 M
$ 3.8
United States
Consumer Cyclical
37
DBRG
DigitalBridge Group, Inc.
60.8%
3.05 B
$ 15.66
United States
Financial Services
38
PRAX
Praxis Precision Medicines,...
59.7%
9.55 B
$ 342.58
United States
Healthcare
39
ASYS
Amtech Systems, Inc.
59.47%
305.64 M
$ 21.08
United States
Technology
40
TRT
Trio-Tech International
56.69%
202.76 M
$ 20.05
United States
Technology
41
KLRS
Kalaris Therapeutics, Inc.
54.86%
116.58 M
$ 4.9
United States
Healthcare
42
CPAC
Cementos Pacasmayo S.A.A.
53.91%
899.88 M
$ 10.51
Peru
Basic Materials
43
VERA
Vera Therapeutics, Inc.
53.45%
2.68 B
$ 37.32
United States
Healthcare
44
VUZI
Vuzix Corporation
52.42%
249.47 M
$ 3
United States
Technology
45
AXTI
AXT, Inc.
51.6%
8.10 B
$ 123.78
United States
Technology
46
STTK
Shattuck Labs, Inc.
51.45%
480.02 M
$ 6.26
United States
Healthcare
47
UMAC
Unusual Machines, Inc.
50.77%
774.26 M
$ 16.2
United States
Technology
48
LPTH
LightPath Technologies, Inc.
50.63%
723.33 M
$ 11.52
United States
Technology
49
FBRX
Forte Biosciences, Inc.
49.84%
473.27 M
$ 23.11
United States
Healthcare
50
TE
T1 Energy Inc.
49.44%
1.58 B
$ 5.67
United States
Industrials
51
SATS
EchoStar Corporation
48.9%
39.77 B
$ 137.23
United States
Communication Services
52
KRRO
Korro Bio, Inc.
48.88%
146.82 M
$ 10.18
United States
Healthcare
53
RDW
Redwire Corporation
48.44%
2.80 B
$ 14.06
United States
Industrials
54
BIOA
BioAge Labs, Inc.
48.15%
785.04 M
$ 17.66
United States
Healthcare
55
DBVT
DBV Technologies S.A.
47.69%
1.16 B
$ 19.65
France
Healthcare
56
AGCC
Agencia Comercial Spirits Ltd
47.21%
398.76 M
$ 17.5
Taiwan
Consumer Defensive
57
QIPT
Quipt Home Medical Corp
47.08%
162.30 M
$ 3.65
United States
Healthcare
58
RDZN
Roadzen, Inc.
46.95%
149.39 M
$ 1.77
United States
Technology
59
TERN
Terns Pharmaceuticals, Inc.
46.75%
6.12 B
$ 52.95
United States
Healthcare
60
DHIL
Diamond Hill Investment Gro...
46.08%
473.29 M
$ 174.99
United States
Financial Services
61
FOLD
Amicus Therapeutics Inc
45.31%
4.55 B
$ 14.49
United States
Healthcare
62
DDL
Dingdong (Cayman) Limited
44.77%
544.46 M
$ 2.49
China
Consumer Defensive
63
STRO
Sutro Biopharma, Inc.
44.35%
645.75 M
$ 38.97
United States
Healthcare
64
AUTL
Autolus Therapeutics plc
44.2%
433.81 M
$ 1.63
United Kingdom
Healthcare
65
DVAX
Dynavax Technologies Corp
43.6%
1.82 B
$ 15.5
United States
Healthcare
66
MCRP
Micropolis AI Robotics
43.3%
101.18 M
$ 2.9
United Arab Emirates
Technology
67
PLAB
Photronics, Inc.
42.6%
2.95 B
$ 50.02
United States
Technology
68
EDAP
EDAP TMS S.A.
41.2%
156.30 M
$ 4.17
France
Healthcare
69
GUTS
Fractyl Health, Inc.
41.03%
136.53 M
$ 0.8606
United States
Healthcare
70
ZURA
Zura Bio Limited
40.86%
447.84 M
$ 4.72
United States
Healthcare
71
ONTF
ON24, Inc.
40.39%
348.25 M
$ 8.1
United States
Technology
72
SRZN
Surrozen, Inc.
40.2%
326.83 M
$ 28.15
United States
Healthcare
73
EVCM
EverCommerce Inc.
40%
1.68 B
$ 9.49
United States
Technology
74
PNBK
Patriot National Bancorp, Inc.
40%
133.06 M
$ 1.07
United States
Financial Services
75
KYTX
Kyverna Therapeutics, Inc.
39.67%
576.95 M
$ 9.49
United States
Healthcare
76
LYEL
Lyell Immunopharma, Inc.
39.28%
418.15 M
$ 17.92
United States
Healthcare
77
NXDT
NexPoint Diversified Real E...
39.27%
236.53 M
$ 4.71
United States
Real Estate
78
ADEA
Adeia Inc.
39.23%
3.30 B
$ 29.88
United States
Technology
79
TORO
Toro Corp.
38.95%
158.40 M
$ 5.49
Cyprus
Energy
80
FTRE
Fortrea Holdings Inc.
38.67%
1.29 B
$ 13.66
United States
Healthcare
81
CFLT
Confluent, Inc.
38.27%
11.13 B
$ 30.99
United States
Technology
82
ASTS
AST SpaceMobile, Inc.
38.05%
32.47 B
$ 83.67
United States
Technology
83
NUTX
Nutex Health Inc.
37.67%
869.11 M
$ 126.3
United States
Healthcare
84
NRGV
Energy Vault Holdings, Inc.
37.61%
1.03 B
$ 5.93
United States
Utilities
85
CNTX
Context Therapeutics Inc.
37.38%
198.46 M
$ 2.16
United States
Healthcare
86
POET
POET Technologies Inc.
37.31%
2.44 B
$ 15.97
Canada
Technology
87
ALM
Almonty Industries Inc.
37.01%
4.95 B
$ 17.45
United States
Basic Materials
88
IKT
Inhibikase Therapeutics, Inc.
36.67%
228.42 M
$ 1.73
United States
Healthcare
89
CYBN
Cybin Inc.
36.33%
148.61 M
$ 6.01
Canada
Healthcare
90
AIRJ
AirJoule Technologies Corpo...
36.33%
255.40 M
$ 3.73
United States
Industrials
91
RAIL
FreightCar America, Inc.
35.83%
151.95 M
$ 7.94
United States
Industrials
92
BFLY
Butterfly Network, Inc.
35.71%
1.00 B
$ 3.83
United States
Healthcare
93
TLYS
Tilly's, Inc.
35.37%
123.17 M
$ 4.04
United States
Consumer Cyclical
94
ELVR
Elevra Lithium Limited
35.04%
1.40 B
$ 77.46
Australia
Basic Materials
95
DXYZ
Destiny Tech100 Inc.
34.64%
1.43 B
$ 47.62
United States
Financial Services
96
TENX
Tenax Therapeutics, Inc.
34.4%
317.77 M
$ 11.98
United States
Healthcare
97
PAMT
PAMT CORP
34.07%
215.30 M
$ 10.28
United States
Industrials
98
SHMD
SCHMID Group N.V.
33.23%
397.09 M
$ 6.87
Germany
Industrials
99
FLY
Firefly Aerospace Inc.
33.08%
6.48 B
$ 40.43
United States
Industrials
100
ALMS
Alumis Inc.
32.79%
2.91 B
$ 22.87
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 December 2025?
A

AFJK (Aimei Health Technology Co., Ltd) has the highest monthly gain in this ranking for December 2025, with a gain of 602%. Top performers this month include AFJK, SIDU, CAPR.

Q What stocks gained the most in December 2025?
A

The biggest gainers in December 2025 were: AFJK (+602%), SIDU (+395%), CAPR (+334%), VELO (+178%), GLSI (+155%). 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 December 2025. 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 December 2025. 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 December 2025?
A

The top performing sectors in December 2025 included Financial Services, Industrials, Healthcare, based on the stocks with highest monthly gains. AFJK led the Financial Services 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 December 2025. 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.