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Top Stock Gainers May 2021 - Monthly Performance Ranked

Discover the best stocks of May 2021 ranked by monthly performance. Find out which public companies delivered the highest returns this month, with market caps over $100 million on Nasdaq and NYSE.
2021

This ranking shows the best performing stocks during May 2021, calculated from the first to the last trading day of the month. Using split-adjusted data ensures accurate performance calculations.

Monthly performance rankings help identify short-term momentum and sector rotation patterns that may not be visible in longer timeframes. These rapid movers often present opportunities for traders and momentum investors.

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Data as of March 20, 2026 at 2:00 PM EDT

Rank
Symbol
Company Name
May Gain
Market Cap
Price
Country
Sector
201
10.36%
77.06 B
$ 53.62
United States
Basic Materials
202
10.34%
4.18 B
$ 88.74
United States
Consumer Cyclical
203
10.3%
251.76 B
$ 158.55
United States
Financial Services
204
10.29%
736.93 M
$ 12.24
United States
Energy
205
10.29%
96.54 B
$ 26.86
India
Financial Services
206
10.26%
33.19 B
$ 3.14
Brazil
Financial Services
207
10.15%
998.36 M
$ 25.65
United States
Real Estate
208
10.14%
22.94 B
$ 2.19
India
Technology
209
10.1%
9.78 B
$ 293.4
United States
Industrials
210
10.08%
71.21 B
$ 43.47
United States
Financial Services
211
10.06%
2.09 B
$ 67.24
United States
Basic Materials
212
9.94%
24.67 B
$ 312.72
United States
Industrials
213
9.91%
33.09 B
$ 27.42
Canada
Basic Materials
214
9.87%
365.68 M
$ 3.89
China
Consumer Defensive
215
9.86%
72.18 B
$ 23.85
Mexico
Communication Services
216
9.85%
26.79 B
$ 66.22
United Kingdom
Energy
217
9.84%
197.80 M
$ 9.89
United States
Industrials
218
9.83%
57.02 B
$ 29.4
Germany
Financial Services
219
9.77%
5.40 B
$ 6.59
United States
Industrials
220
9.76%
192.16 B
$ 109.85
United States
Financial Services
221
9.69%
36.20 B
$ 154.19
United States
Communication Services
222
9.69%
114.12 M
$ 17.67
Germany
Financial Services
223
9.66%
134.10 B
$ 26.14
India
Financial Services
224
9.59%
2.38 B
$ 14.08
United States
Financial Services
225
9.59%
4.78 B
$ 42.03
United States
Communication Services
226
9.52%
640.15 M
$ 6.14
United States
Energy
227
9.47%
2.69 B
$ 9.62
Brazil
Technology
228
9.41%
71.63 B
$ 20.8
United Kingdom
Financial Services
229
9.41%
9.97 B
$ 76.27
United States
Consumer Cyclical
230
9.37%
10.02 B
$ 16.89
Canada
Basic Materials
231
9.34%
51.49 B
$ 239.53
United States
Energy
232
9.34%
10.99 B
$ 23.07
United States
Energy
233
9.32%
412.46 M
$ 10.29
United States
Industrials
234
9.29%
479.98 M
$ 26.26
United States
Industrials
235
9.28%
111.84 M
$ 3.67
United States
Consumer Cyclical
236
9.26%
3.44 B
$ 103.11
United States
Industrials
237
9.25%
2.91 B
$ 25.6
United States
Basic Materials
238
9.25%
1.59 B
$ 10.35
United States
Consumer Cyclical
239
9.24%
2.30 B
$ 50.19
United States
Basic Materials
240
9.23%
21.01 B
$ 16.36
South Korea
Utilities
241
9.19%
239.99 M
$ 15.67
242
9.19%
488.08 M
$ 8.16
United States
Communication Services
243
9.13%
1.63 B
$ 22.86
United States
Consumer Cyclical
244
9.13%
43.14 B
$ 5.76
Brazil
Financial Services
245
9.11%
1.59 B
$ 14.85
United States
Industrials
246
9.09%
43.27 B
$ 85.69
United States
Basic Materials
247
9.07%
67.60 B
$ 101.02
Ireland
Basic Materials
248
9.07%
5.27 B
$ 47.48
Peru
Financial Services
249
9.04%
707.52 M
$ 18.31
United States
Healthcare
250
9.03%
272.31 B
$ 208.93
Japan
Consumer Cyclical
251
8.96%
1.07 B
$ 56.85
United States
Financial Services
252
8.93%
46.07 B
$ 148.97
United States
Energy
253
8.92%
18.92 B
$ 53.7
China
Consumer Cyclical
254
8.9%
1.33 B
$ 9.65
Ireland
Healthcare
255
8.83%
4.33 B
$ 55.8
United States
Financial Services
256
8.8%
4.78 B
$ 90.62
United States
Basic Materials
257
8.78%
5.27 B
$ 295.61
United States
Financial Services
258
8.77%
195.94 M
$ 7.27
United States
Industrials
259
8.77%
9.46 B
$ 53.41
United States
Real Estate
260
8.77%
76.48 B
$ 459.16
United States
Technology
261
8.76%
102.98 B
$ 269.17
United States
Industrials
262
8.76%
2.77 B
$ 9
Canada
Basic Materials
263
8.67%
8.14 B
$ 98.75
Canada
Industrials
264
8.66%
31.08 B
$ 36.93
United States
Energy
265
8.59%
3.01 B
$ 39.65
United States
Real Estate
266
8.59%
70.45 B
$ 78.46
Canada
Industrials
267
8.58%
31.04 B
$ 104.94
United States
Real Estate
268
8.55%
752.02 M
$ 14.46
United States
Financial Services
269
8.54%
23.59 B
$ 65.51
United States
Financial Services
270
8.49%
32.98 B
$ 30.03
Japan
Financial Services
271
8.47%
1.42 B
$ 28.85
Argentina
Utilities
272
8.43%
2.00 B
$ 154.04
United States
Financial Services
273
8.34%
1.81 B
$ 28.31
United States
Technology
274
8.32%
1.24 B
$ 43.97
United States
Financial Services
275
8.31%
412.91 M
$ 11.64
United States
Industrials
276
8.29%
74.92 B
$ 25.94
Netherlands
Financial Services
277
8.27%
928.08 M
$ 43.85
United States
Financial Services
278
8.27%
2.26 B
$ 66.14
United States
Financial Services
279
8.25%
20.51 B
$ 13.14
Canada
Communication Services
280
8.23%
1.17 B
$ 79.96
Bermuda
Energy
281
8.18%
60.66 B
$ 15.08
United Kingdom
Financial Services
282
8.16%
7.53 B
$ 11.39
Canada
Energy
283
8.14%
3.25 B
$ 26.8
Canada
Basic Materials
284
8.12%
70.88 B
$ 235.78
United States
Energy
285
8.11%
1.34 B
$ 9.83
United States
Consumer Cyclical
286
8.09%
447.82 M
$ 3.01
United States
Energy
287
8.09%
223.81 B
$ 160.33
Canada
Financial Services
288
8.07%
3.87 B
$ 19.36
United States
Real Estate
289
8.06%
18.23 B
$ 43.52
United States
Basic Materials
290
8.03%
370.21 M
$ 11.77
United States
Industrials
291
8%
6.39 B
$ 33.6
United States
Financial Services
292
7.99%
214.80 M
$ 46.02
United States
Financial Services
293
7.99%
38.30 B
$ 49.98
Luxembourg
Basic Materials
294
7.98%
23.40 B
$ 165.24
United States
Real Estate
295
7.95%
46.46 B
$ 106.6
Canada
Energy
296
7.95%
310.75 M
$ 15.05
297
7.92%
31.23 B
$ 62.67
South Korea
Financial Services
298
7.86%
2.45 B
$ 31.48
United States
Real Estate
299
7.84%
171.59 B
$ 136.26
United States
Technology
300
7.8%
4.54 B
$ 86.98
Singapore
Utilities
For the most accurate results, consider cross-referencing our data with other sources.