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#1 PIII leads with +316% May 2026

Among the 3,818 NYSE, Nasdaq and NYSE American stocks currently eligible for this ranking, PIII (P3 Health Partners Inc.) has the highest gain in May 2026 with +316%. Following are AIIO (+285%) and REPL (+248%). Top performing sectors: Consumer Cyclical (+151% avg, 2 in top 10), Communication Services (+137% avg), Healthcare (+111% avg, 4 in top 10).

Top Stock Gainers May 2026 - Monthly Performance Ranked

Track the top performing stocks of May 2026 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.

Best performing large-cap stocks in May 2026

DELL Dell Technologies Inc. +100.27% $261.93B
RKLB Rocket Lab Corporation +82.06% $40.58B
SNOW Snowflake Inc. +81.24% $101.65B
DDOG Datadog, Inc. +76.01% $95.39B
SMCI Super Micro Computer, Inc. +70.14% $18.37B
2026

This ranking shows the top performing stocks and biggest stock gainers during May 2026, 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.

May 2026 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 May 2026. 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?

May 2026 ranking, complete through May 29, 2026

The gain covers the period above. Price, market cap, sector and country show each company as it is today, not as it was then.

Rank
Symbol
Company Name
May Gain
Market Cap (today)
Price (today)
Country
Sector
1
315.7%
2.00 B
$ 9.83
United States
Healthcare
2
284.55%
469.12 M
$ 2.81
United Arab Emirates
Consumer Cyclical
3
247.6%
941.09 M
$ 11.2
United States
Healthcare
4
242.65%
634.84 M
$ 3.56
United States
Consumer Cyclical
5
211.97%
1.53 B
$ 91.61
United States
Healthcare
6
192.09%
1.05 B
$ 4.13
United States
Technology
7
178.41%
182.62 M
$ 0.9766
United States
Healthcare
8
163.06%
2.06 B
$ 8.62
United States
Industrials
9
138.59%
974.74 M
$ 8.06
United States
Technology
10
138.48%
2.05 B
$ 62.83
United States
Technology
11
137.08%
1.03 B
$ 11.22
United States
Communication Services
12
133.21%
327.77 M
$ 2.55
United States
Industrials
13
123.96%
1.01 B
$ 21.16
United States
Technology
14
119.25%
465.83 M
$ 15.68
United States
Healthcare
15
115.61%
117.83 M
$ 4.65
United States
Technology
16
111.95%
169.19 M
$ 1.86
United States
Technology
17
107.71%
362.65 M
$ 3.68
United States
Utilities
18
105.05%
1.16 B
$ 4.17
United States
Industrials
19
101.95%
4.96 B
$ 37.54
United States
Technology
20
100.99%
118.18 M
$ 3.96
Hong Kong
Consumer Cyclical
21
100.27%
261.93 B
$ 405.37
United States
Technology
22
97.23%
1.35 B
$ 12.66
United States
Healthcare
23
95.61%
109.68 M
$ 3.57
United Kingdom
Technology
24
92.86%
287.05 M
$ 1.98
United States
Healthcare
25
90.41%
146.99 M
$ 6.56
United States
Technology
26
88.84%
1.97 B
$ 10.01
United States
Healthcare
27
87.74%
168.46 M
$ 2.98
United States
Technology
28
86.2%
1.45 B
$ 24.53
United States
Industrials
29
86.07%
823.40 M
$ 13.72
United States
Technology
30
86.02%
279.60 M
$ 4.31
United States
Healthcare
31
86.01%
774.40 M
$ 2.83
United States
Financial Services
32
85.62%
285.57 M
$ 2.45
United States
Healthcare
33
85.55%
804.94 M
$ 2.67
Canada
Industrials
34
85.46%
125.36 M
$ 7.21
United States
Industrials
35
83.82%
2.40 B
$ 3.97
United States
Technology
36
82.06%
40.58 B
$ 64.95
United States
Industrials
37
81.26%
302.93 M
$ 12.23
United States
Technology
38
81.24%
101.65 B
$ 293.28
United States
Technology
39
79.65%
1.71 B
$ 48.25
United States
Technology
40
78.71%
2.70 B
$ 52.63
United States
Technology
41
78.62%
915.16 M
$ 23.7
United States
Technology
42
78.36%
122.58 M
$ 2.65
United States
Technology
43
77.93%
2.51 B
$ 41.2
Israel
Technology
44
77.72%
301.88 M
$ 10.13
United States
Technology
45
77.55%
4.74 B
$ 85.72
United States
Industrials
46
76.01%
95.39 B
$ 267.97
United States
Technology
47
75.96%
5.25 B
$ 34.22
United States
Technology
48
74.43%
1.13 B
$ 10.61
United States
Technology
49
74.1%
2.63 B
$ 39.01
United States
Technology
50
73.07%
1.14 B
$ 5.54
Australia
Technology
51
72.56%
209.27 M
$ 2.87
United States
Technology
52
71.09%
133.62 M
$ 6.23
China
Industrials
53
71.08%
1.98 B
$ 12.34
United States
Industrials
54
71%
1.18 B
$ 17.54
United States
Technology
55
70.14%
18.37 B
$ 28.4
United States
Technology
56
69.96%
47.73 B
$ 19.03
Taiwan
Technology
57
69.91%
178.45 M
$ 64.15
United States
Consumer Cyclical
58
69.16%
53.35 B
$ 311.23
United States
Technology
59
68.13%
1.21 B
$ 6.99
Canada
Technology
60
67.36%
499.60 M
$ 3.47
Canada
Technology
61
67.29%
255.99 B
$ 239.69
United Kingdom
Technology
62
67.1%
2.19 B
$ 12.54
Taiwan
Technology
63
66.05%
4.98 B
$ 8.5
Canada
Technology
64
65.98%
5.42 B
$ 78.47
United States
Technology
65
64.43%
41.68 B
$ 113.75
United States
Technology
66
62.86%
205.62 M
$ 34.7
China
Financial Services
67
62.75%
109.44 M
$ 4.53
United States
Healthcare
68
62.73%
1.73 B
$ 21.61
United States
Industrials
69
62.67%
24.67 B
$ 141.93
United States
Technology
70
62.37%
1.23 B
$ 20.04
United States
Technology
71
62.19%
7.48 B
$ 84.11
United States
Healthcare
72
62.16%
12.12 B
$ 107.63
United States
Financial Services
73
62.05%
339.32 M
$ 4.81
United States
Healthcare
74
61.97%
193.76 M
$ 2.33
United States
Technology
75
61.61%
18.31 B
$ 596.77
United States
Industrials
76
61.26%
1.23 B
$ 23.62
United States
Technology
77
60.62%
179.62 M
$ 10.75
United States
Healthcare
78
60.45%
411.22 M
$ 30.26
United States
Technology
79
60.43%
194.34 B
$ 190.86
United States
Technology
80
60.07%
9.57 B
$ 62.84
United States
Healthcare
81
59.98%
22.89 B
$ 58.98
United States
Technology
82
59.89%
118.65 B
$ 161.95
United States
Technology
83
59.81%
221.65 M
$ 2.79
United States
Financial Services
84
59.33%
1.25 B
$ 6.21
United States
Financial Services
85
59.31%
9.66 B
$ 79.79
United States
Technology
86
58.82%
268.07 M
$ 5
United States
Healthcare
87
57.63%
1.28 B
$ 6.37
United States
Industrials
88
57.5%
4.93 B
$ 9.44
United Kingdom
Consumer Cyclical
89
57.5%
208.50 M
$ 5.75
United States
Industrials
90
56.01%
9.51 B
$ 16.77
United States
Technology
91
56%
13.60 B
$ 36.44
United States
Technology
92
55.76%
143.58 M
$ 14.36
United States
Healthcare
93
55.56%
270.44 B
$ 331.83
United States
Technology
94
55.5%
35.03 B
$ 178.5
United States
Technology
95
55.03%
190.29 M
$ 13.97
United States
Healthcare
96
54.88%
2.57 B
$ 13.93
United States
Utilities
97
54.08%
1.65 B
$ 47.4
Taiwan
Technology
98
52.58%
399.23 M
$ 36.77
United States
Technology
99
52.57%
1.47 B
$ 8.74
United States
Technology
100
52.44%
2.84 B
$ 10.86
United States
Technology
Return measured from the start of the stock's current trading history (a recent listing or relisting), not from the start of the month.
For the most accurate results, consider cross-referencing our data with other sources.

Frequently Asked Questions

Q Which stock has gained the most in May 2026?
A

PIII (P3 Health Partners Inc.) has the highest monthly gain in this ranking for May 2026, with a gain of 316%. Top performers this month include PIII, AIIO, REPL.

Q What stocks gained the most in May 2026?
A

The biggest gainers in May 2026 were: PIII (+316%), AIIO (+285%), REPL (+248%), HYLN (+243%), AGL (+212%). 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 May 2026. 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 May 2026. 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 May 2026?
A

The top performing sectors in May 2026 included Healthcare, Consumer Cyclical, based on the stocks with highest monthly gains. PIII 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 May 2026. 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.