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 $1,937.45 as of September 11, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $499.81, while $1000 invested 1 year ago would be worth $1,146.24. This corresponds to total returns of 93.75%, -50.02%, 14.62%, respectively, with annualized returns of 6.84%, -12.96%, 14.62%.

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
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
July 24, 2026	70.76	63.46	63.46	70.76	63.36	677,657
July 23, 2026	71.03	70.87	70.87	72.92	70.06	494,240
July 22, 2026	72.54	72.49	72.49	74.42	71.8	507,131
July 21, 2026	73.15	74.39	74.39	74.92	72.6	539,499
July 20, 2026	71.43	71.15	71.15	72.47	70.57	497,702
July 17, 2026	66.8	70.45	70.45	71.57	66.47	741,817
July 16, 2026	68.64	69.84	69.84	70.17	68.03	1.05M
July 15, 2026	71.82	71.02	71.02	72.19	67.34	954,707
July 14, 2026	72.73	70.76	70.76	73.33	70.41	831,235
July 13, 2026	69.88	69.44	69.44	70.42	68.87	586,163
July 10, 2026	69.5	72.07	72.07	72.3	69.17	452,789
July 09, 2026	69.9	70.83	70.83	71.74	68.15	660,320
July 08, 2026	65.21	66.46	66.46	67.75	65.21	926,585
July 07, 2026	69.04	66.83	66.83	69.56	65.45	1.11M
July 06, 2026	74.08	73.06	73.06	77.57	72.94	617,649
July 02, 2026	80.2	72.99	72.99	80.37	70.89	1.34M
July 01, 2026	81.02	80.27	80.27	82.86	79.89	511,609
June 30, 2026	79.6	83.76	83.76	84.01	79.49	858,183
June 29, 2026	78.45	78.96	78.96	79.79	75.48	879,085
June 26, 2026	81.51	79.37	79.37	82.61	79.19	2.54M
June 25, 2026	84.87	84.81	84.81	86.79	80.5	1.01M
June 24, 2026	81.88	81.86	81.86	82	79	976,119
June 23, 2026	81.47	80.57	80.57	85	80.2	1.09M
June 22, 2026	89.29	87.35	87.35	91.18	87.11	1.11M
June 18, 2026	83.76	87.11	87.11	87.89	83.76	1.65M
June 17, 2026	79.45	80.73	80.73	84.6	78.08	851,278
June 16, 2026	84.12	79.33	79.33	84.46	79.2	561,734