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#1 RGC leads with +2,938% May 2023

RGC (Regencell Bioscience Holdings Limited) is the best performing stock in May 2023. Following are BMNR (+2,216%) and GSIT (+276%). Top performing sectors: Financial Services (+333% avg, 1 in top 10), Healthcare (+166% avg, 4 in top 10), Consumer Defensive (+100% avg).

Top Stock Gainers May 2023 - Monthly Performance Ranked

Track the top performing stocks of May 2023 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.
2023

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

May 2023 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 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?

Data as of June 20, 2026 at 7:23 AM EDT

Rank
Symbol
Company Name
May Gain
Market Cap
Price
Country
Sector
1
2937.57%
5.94 B
$ 12.01
Hong Kong
Healthcare
2
2215.79%
9.19 B
$ 16.14
United States
Financial Services
3
275.97%
289.91 M
$ 7.58
United States
Technology
4
191.37%
2.18 B
$ 10.75
United States
Healthcare
5
173.87%
1.00 B
$ 11.91
United States
Healthcare
6
170%
13.31 B
$ 46.59
United States
Technology
7
165.2%
590.09 M
$ 8.71
United States
Healthcare
8
161.14%
9.15 B
$ 24.69
United States
Technology
9
150.42%
855.02 M
$ 11.4
Ireland
Industrials
10
136.87%
125.52 M
$ 0.3642
United States
Technology
11
131.82%
362.04 M
$ 4.12
United States
Healthcare
12
131.31%
1.84 B
$ 36.27
France
Healthcare
13
130.43%
137.92 M
$ 1.96
United States
Basic Materials
14
123.52%
7.10 B
$ 21.36
United States
Technology
15
114.76%
1.50 B
$ 10.3
United States
Technology
16
113.06%
18.44 B
$ 30.66
United States
Technology
17
112.75%
913.54 M
$ 4.93
United States
Technology
18
112.15%
280.94 M
$ 5.24
United States
Healthcare
19
109.86%
3.10 B
$ 32.43
United States
Financial Services
20
106.25%
152.64 M
$ 2.78
United States
Industrials
21
100%
105.84 M
$ 11.27
United States
Consumer Defensive
22
100%
110.13 M
$ 1.36
United States
Healthcare
23
96.54%
21.11 B
$ 56.55
United States
Technology
24
94.57%
2.97 B
$ 46.57
United States
Technology
25
93.16%
207.80 M
$ 5.54
United States
Healthcare
26
92.22%
338.18 M
$ 4.52
United States
Technology
27
89.07%
307.98 B
$ 128.47
United States
Technology
28
86.44%
73.01 B
$ 66.56
United States
Consumer Cyclical
29
83.66%
167.81 M
$ 10.31
United States
Technology
30
83.09%
1.71 B
$ 3.23
United States
Healthcare
31
80.82%
4.31 B
$ 4.47
United States
Real Estate
32
80.78%
2.04 B
$ 44.11
United States
Technology
33
80.68%
213.90 M
$ 9.58
United States
Technology
34
80.6%
313.97 M
$ 2.44
United States
Healthcare
35
80.5%
190.12 M
$ 2.01
Israel
Healthcare
36
79.37%
757.74 M
$ 2.17
United States
Financial Services
37
77.73%
413.74 M
$ 5.2
United States
Healthcare
38
72.89%
116.22 M
$ 1.67
Israel
Healthcare
39
71.53%
1.51 B
$ 9.78
United States
Basic Materials
40
71.08%
172.10 M
$ 4.11
United States
Healthcare
41
70.85%
348.50 M
$ 4.94
United States
Healthcare
42
67.89%
1.02 B
$ 5.65
United States
Industrials
43
67.72%
1.35 B
$ 12.38
United States
Financial Services
44
67.62%
147.24 M
$ 2.79
United States
Industrials
45
67.2%
401.88 M
$ 1.51
United Kingdom
Healthcare
46
66.2%
510.48 M
$ 7.39
United States
Technology
47
66.19%
590.87 M
$ 4.71
United States
Healthcare
48
65.45%
315.22 M
$ 5.85
United States
Healthcare
49
64.9%
158.79 M
$ 3.88
United States
Healthcare
50
64.86%
50.69 B
$ 271.83
Cayman Islands
Technology
51
62.65%
3.65 B
$ 64.73
United States
Technology
52
60.61%
399.49 M
$ 1.65
United States
Technology
53
59.22%
5.85 B
$ 24.02
United States
Technology
54
58.78%
208.25 M
$ 4.47
United States
Healthcare
55
57.32%
224.77 M
$ 3.72
United States
Healthcare
56
57.03%
388.98 M
$ 5.02
United States
Basic Materials
57
56.98%
614.96 M
$ 16.19
United States
Communication Services
58
56.9%
121.53 M
$ 3.21
United States
Consumer Cyclical
59
56.32%
2.15 B
$ 8.86
United States
Real Estate
60
55.79%
4.52 B
$ 58.84
United States
Financial Services
61
55.39%
159.69 M
$ 3.39
United States
Healthcare
62
54.81%
7.48 B
$ 10.01
United States
Real Estate
63
54.65%
79.53 B
$ 224.06
United States
Technology
64
54.59%
1.63 B
$ 6.1
United Kingdom
Communication Services
65
54.15%
917.44 M
$ 9.4
United States
Industrials
66
53.08%
100.81 M
$ 3.07
United States
Healthcare
67
52.82%
102.06 M
$ 16.4
United States
Healthcare
68
52.67%
20.19 B
$ 124.85
United States
Technology
69
52.21%
546.63 M
$ 3.67
United States
Healthcare
70
52.2%
112.84 M
$ 8.45
Canada
Basic Materials
71
52%
1.16 B
$ 7.41
United States
Healthcare
72
51.65%
3.12 B
$ 95.5
United States
Technology
73
50.57%
2.21 B
$ 10.41
United States
Technology
74
50.28%
3.69 B
$ 71.53
Israel
Technology
75
49.07%
297.28 M
$ 12.74
United States
Healthcare
76
48.75%
24.76 B
$ 73.92
United States
Financial Services
77
48.51%
1.61 B
$ 8.74
Brazil
Industrials
78
48.25%
157.79 B
$ 469.71
United States
Communication Services
79
47.86%
1.60 B
$ 6.92
United States
Technology
80
46.88%
11.13 B
$ 30.99
United States
Technology
81
46.88%
324.80 M
$ 0.8297
United States
Healthcare
82
46.8%
4.25 B
$ 5.57
United States
Industrials
83
46.19%
271.70 B
$ 310.58
United States
Technology
84
45.85%
1.42 B
$ 13.06
United States
Industrials
85
45.48%
367.66 M
$ 3.11
United States
Financial Services
86
45.41%
1.98 B
$ 33.63
United States
Technology
87
45.35%
403.92 M
$ 1.06
United Kingdom
Consumer Cyclical
88
45.16%
285.74 M
$ 0.9699
United States
Healthcare
89
45.12%
79.38 B
$ 223
United States
Technology
90
45.04%
462.81 M
$ 34.81
United States
Communication Services
91
44.38%
2.76 B
$ 53.01
United States
Healthcare
92
44%
683.34 M
$ 5.82
United States
Industrials
93
43.98%
1.13 B
$ 5.5
United States
Healthcare
94
43.91%
148.62 M
$ 13.33
Canada
Technology
95
43.19%
843.31 M
$ 3.57
France
Healthcare
96
43.18%
2.40 B
$ 5.44
Brazil
Financial Services
97
42.93%
10.83 B
$ 297.2
United States
Industrials
98
42.53%
4.57 B
$ 24.8
United States
Utilities
99
42.34%
222.55 M
$ 3.47
United States
Technology
100
41.25%
15.27 B
$ 141.17
United States
Technology
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 2023?
A

RGC (Regencell Bioscience Holdings Limited) has the highest monthly gain in this ranking for May 2023, with a gain of 2,938%. Top performers this month include RGC, BMNR, GSIT.

Q What stocks gained the most in May 2023?
A

The biggest gainers in May 2023 were: RGC (+2,938%), BMNR (+2,216%), GSIT (+276%), PIII (+191%), CRVS (+174%). 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 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 May 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 sectors performed best in May 2023?
A

The top performing sectors in May 2023 included Healthcare, Financial Services, Technology, based on the stocks with highest monthly gains. RGC 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 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 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.