NiSource Inc (NI) NYSE

Currency In USD

NI Historical Return

If you invested $1000 in NiSource Inc. (NI) 10 years ago, it would be worth $2,368.21 as of September 12, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,945.51, while $1000 invested 1 year ago would be worth $1,023.73. This corresponds to total returns of 136.82%, 94.55%, 2.37%, respectively, with annualized returns of 9%, 14.24%, 2.37%.

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

NI Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
September 11, 2026	41.64	41.41	41.41	41.9	41.36	3.63M
September 10, 2026	41.86	41.42	41.42	42	41.36	5.3M
September 09, 2026	41.83	41.67	41.67	42.05	41.4	4.08M
September 08, 2026	41.36	41.9	41.9	42.18	41.36	5.09M
September 04, 2026	41.38	41.39	41.39	41.64	41.16	4.55M
September 03, 2026	41.3	41.66	41.66	41.79	41.24	4.2M
September 02, 2026	40.79	41.15	41.15	41.19	40.6	5.14M
September 01, 2026	41.04	40.96	40.96	41.28	40.76	6.94M
August 31, 2026	40.44	40.92	40.92	41.08	40.09	6.92M
August 28, 2026	41.3	40.57	40.57	41.3	40.49	3.05M
August 27, 2026	40.81	40.96	40.96	41.08	40.61	3.71M
August 26, 2026	40.61	41.13	41.13	41.25	40.61	5.06M
August 25, 2026	40.9	40.65	40.65	41.08	40.65	4.42M
August 24, 2026	40.66	40.83	40.83	40.89	40.49	5.67M
August 21, 2026	41.77	40.62	40.62	42.38	40.6	5.67M
August 20, 2026	41.5	41.64	41.64	42.23	41.43	6.36M
August 19, 2026	42.24	41.63	41.63	42.27	41.58	6.81M
August 18, 2026	43.22	42.12	42.12	43.22	42.01	4.41M
August 17, 2026	42.26	42.37	42.37	42.38	41.96	5.49M
August 14, 2026	41.98	42.5	42.5	42.64	41.98	4.72M
August 13, 2026	42.19	42.08	42.08	42.36	42.04	4.69M
August 12, 2026	41.82	41.99	41.99	42.37	41.67	6.46M
August 11, 2026	41.73	42.01	42.01	42.11	41.41	7.57M
August 10, 2026	42.34	41.78	41.78	42.34	41.7	7.62M
August 07, 2026	43.15	42.61	42.61	43.31	42.55	7.51M
August 06, 2026	43.28	43.38	43.38	43.51	42.7	9.21M
August 05, 2026	42.96	42.91	42.91	43.99	41.95	13.56M
August 04, 2026	44.52	44.53	44.53	44.69	43.69	6.77M
August 03, 2026	44.35	44.53	44.53	45.02	44.25	4.82M
July 31, 2026	44.75	44.43	44.43	44.96	44.43	4.39M
July 30, 2026	45.21	45.07	45.07	45.27	44.32	5.64M
July 29, 2026	45.73	44.81	44.81	45.9	44.78	4.02M
July 28, 2026	46.31	45.73	45.73	46.53	45.73	3.65M
July 27, 2026	46.54	45.81	45.81	46.69	45.68	2.73M
July 24, 2026	46.98	46.68	46.68	47.07	46.5	3.84M
July 23, 2026	46.2	46.75	46.75	47.02	46.06	3.07M
July 22, 2026	45.76	46.57	46.57	46.62	45.7	3.84M
July 21, 2026	45.82	45.37	45.37	45.82	44.83	8.35M
July 20, 2026	46.2	45.37	45.37	46.39	45.24	4.62M
July 17, 2026	46.5	45.98	45.98	46.99	45.79	5.77M
July 16, 2026	45.73	46.27	46.27	46.33	45.62	5.13M
July 15, 2026	46.59	45.71	45.71	46.71	45.47	5.19M
July 14, 2026	47.47	46.62	46.62	47.54	46.51	4.96M
July 13, 2026	46.97	47.07	47.07	47.34	46.95	4.28M
July 10, 2026	46.64	46.9	46.9	47.14	46.55	2.98M
July 09, 2026	47.44	46.66	46.66	47.44	46.6	3.38M
July 08, 2026	47.67	46.85	46.85	47.75	46.76	4.9M
July 07, 2026	47.37	47.49	47.49	48.06	47.37	3.02M
July 06, 2026	47.68	47.05	47.05	47.82	47.02	3.93M
July 02, 2026	47.34	47.82	47.82	47.82	46.98	5.55M
July 01, 2026	47.55	46.87	46.87	47.7	46.86	4.86M
June 30, 2026	47.65	47.55	47.55	48.18	47.5	8.41M
June 29, 2026	48.81	48.15	48.15	49.21	47.94	6.4M
June 26, 2026	48.18	49.08	49.08	49.08	48.06	6.3M
June 25, 2026	47.99	47.81	47.81	48.38	47.53	5.62M
June 24, 2026	47.22	47.63	47.63	47.68	47.07	4.19M
June 23, 2026	47.21	47.26	47.26	47.74	46.17	6.09M
June 22, 2026	46.94	47.63	47.63	47.9	46.59	3.8M
June 18, 2026	47.13	47.26	47.26	47.41	46.84	5.7M
June 17, 2026	47.41	46.77	46.77	47.88	46.52	5.47M