Power Integrations, Inc. (POWI) NASDAQ

Currency In USD

POWI Historical Return

If you invested $1000 in Power Integrations, Inc. (POWI) 10 years ago, it would be worth $1,712.72 as of October 21, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $500.88, while $1000 invested 1 year ago would be worth $1,096.11. This corresponds to total returns of 71.27%, -49.91%, 9.61%, respectively, with annualized returns of 5.53%, -12.91%, 9.61%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

POWI Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
October 20, 2026	44.81	46.97	46.97	47.41	44.35	688,544
October 19, 2026	45.71	45.46	45.46	46.35	44.33	803,986
October 16, 2026	44.51	44.5	44.5	45.89	44.19	756,165
October 15, 2026	43.3	44.97	44.97	45.11	42.5	1.05M
October 14, 2026	45.92	44.78	44.78	46.82	43.91	1.06M
October 13, 2026	46.16	46.7	46.7	47.16	45.36	1.03M
October 12, 2026	48.72	47.11	47.11	48.72	46.98	558,623
October 09, 2026	50.79	49.12	49.12	51.36	48.7	365,467
October 08, 2026	50.54	49.89	49.89	50.63	48.89	734,643
October 07, 2026	52.15	51.4	51.4	52.57	50.66	440,155
October 06, 2026	54.69	53.4	53.4	54.69	53.13	503,917
October 05, 2026	54.07	54.36	54.36	54.63	52.17	703,863
October 02, 2026	53.54	54.46	54.46	55.86	53.03	892,629
October 01, 2026	51.8	51.5	51.5	52.13	50.48	843,699
September 30, 2026	51.28	51.8	51.8	52.28	50.79	1.12M
September 29, 2026	53.16	51.08	51.08	53.16	50.72	1.07M
September 28, 2026	51.82	51.84	51.84	52.51	50.72	618,898
September 25, 2026	51.29	52.22	52.22	52.89	50.94	752,695
September 24, 2026	49.84	50.78	50.78	50.84	49.08	602,465
September 23, 2026	51.22	51.05	51.05	51.5	49.57	643,248
September 22, 2026	49.62	51.46	51.46	52.26	49.43	663,753
September 21, 2026	51.39	49.51	49.51	51.93	49.47	738,674
September 18, 2026	49.76	50.39	50.39	50.61	49.15	1.51M
September 17, 2026	49.1	49.15	49.15	50.24	48.67	828,498
September 16, 2026	49.64	47.65	47.65	49.64	46.71	601,752
September 15, 2026	49.59	48.27	48.27	49.92	47.4	756,733
September 11, 2026	50.68	52.28	52.28	53.15	50.51	1.01M
September 10, 2026	48.2	49.69	49.69	50.08	48.2	353,779
September 09, 2026	49.9	49.71	49.71	51.17	49.49	675,374
September 08, 2026	51.19	50.46	50.46	51.6	50.05	588,506
September 04, 2026	51	50.45	50.45	51.7	49.77	470,625
September 03, 2026	50	50.54	50.54	51.04	48.42	781,377
September 02, 2026	49.78	50.3	50.3	50.61	48.67	1.18M
September 01, 2026	50.5	49.78	49.78	50.78	49.29	2.53M
August 31, 2026	51.61	51.38	51.38	52.52	50.9	946,906
August 28, 2026	55	51.51	51.51	55.93	51.32	770,172
August 27, 2026	56.21	55.31	55.31	56.97	54.78	667,478
August 26, 2026	55.49	54.9	54.9	56.62	54.5	647,044
August 25, 2026	54.59	54.63	54.63	54.7	53.28	635,454
August 24, 2026	54.66	53.18	53.18	54.66	51.83	711,432
August 21, 2026	55.28	55.18	55.18	55.64	54.15	746,588
August 20, 2026	55.76	54.84	54.84	56.8	54.13	646,178
August 19, 2026	59.4	55.79	55.79	59.5	55.69	675,250
August 18, 2026	59.81	58.59	58.59	60.7	58	795,711
August 17, 2026	63.07	62.1	62.1	64.65	61.96	529,321
August 14, 2026	61.77	62.75	62.75	63.43	61.29	372,554
August 13, 2026	63.48	62.31	62.31	64.47	61.9	380,365
August 12, 2026	65.74	63.84	63.84	66.18	63.24	472,090
August 11, 2026	63.38	63.27	63.27	65.14	62.67	513,036
August 10, 2026	65.08	61.97	61.97	65.48	61.47	637,686
August 07, 2026	60.71	64.59	64.59	64.82	60.71	594,039
August 06, 2026	61.53	58.98	58.98	63.16	58.61	852,623
August 05, 2026	63.36	61.95	61.95	64.03	61.48	796,000
August 04, 2026	62.71	64.57	64.57	64.89	61.8	741,803
August 03, 2026	58.44	60.4	60.4	61.82	58.44	685,241
July 31, 2026	62.57	60.71	60.71	63.72	60.48	559,189
July 30, 2026	59.01	60.87	60.87	61.68	58.37	697,077
July 29, 2026	58.55	56.57	56.57	59.75	56.04	743,917
July 28, 2026	60.35	59.2	59.2	62	57.28	716,749
July 27, 2026	63.58	63.41	63.41	65.15	60.38	937,978