Main Street Capital Corporation (MAIN) NYSE

Currency In USD

MAIN Historical Return

If you invested $1000 in Main Street Capital Corporation (MAIN) 10 years ago, it would be worth $3,187.8 as of October 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,728.84, while $1000 invested 1 year ago would be worth $955.54. This corresponds to total returns of 218.78%, 72.88%, -4.45%, respectively, with annualized returns of 12.29%, 11.56%, -4.45%.

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

MAIN Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
October 21, 2026	53.63	53.3	53.3	53.75	53.02	255,133
October 20, 2026	53.33	53.36	53.36	53.8	53.04	384,547
October 19, 2026	53.68	53.15	53.15	53.78	52.41	622,015
October 16, 2026	54.37	53.83	53.83	54.58	53.5	486,686
October 15, 2026	53.62	54.27	54.27	54.88	53.28	564,732
October 14, 2026	53.49	53.5	53.5	53.94	53.31	454,180
October 13, 2026	53.8	53.77	53.77	54.07	53.43	386,796
October 12, 2026	53.75	53.66	53.66	53.86	53.42	384,706
October 09, 2026	54.21	53.74	53.74	54.59	53.62	431,257
October 08, 2026	53.62	54.47	54.47	54.63	53.62	524,053
October 07, 2026	54.5	54.18	54.18	54.5	53.47	685,717
October 06, 2026	54.94	54.77	54.77	55.14	54.67	382,897
October 05, 2026	55.39	54.99	54.99	55.97	54.74	561,417
October 02, 2026	55.8	55.11	55.11	55.87	54.55	528,906
October 01, 2026	55	55.66	55.66	55.84	54.78	595,710
September 30, 2026	56.45	55.05	55.05	56.45	55.05	531,432
September 29, 2026	55.75	55.94	55.94	56.83	55.55	567,602
September 28, 2026	55	55.07	55.07	55.4	54.65	468,532
September 25, 2026	54.95	55.1	55.1	55.1	54.37	575,734
September 24, 2026	55.16	54.76	54.76	55.25	54.59	463,047
September 23, 2026	55.84	55.08	55.08	55.97	55.04	438,314
September 22, 2026	56.44	56	56	56.46	56	389,814
September 21, 2026	56.1	56.28	56.28	56.36	55.95	384,287
September 18, 2026	57	56.19	56.19	57.1	55.86	534,675
September 17, 2026	56.8	57.03	57.03	57.73	56.73	384,655
September 16, 2026	56.55	56.24	56.24	56.87	55.59	493,831
September 15, 2026	56.27	56.54	56.54	56.54	55.95	414,720
September 11, 2026	56.25	56.22	56.22	56.35	55.9	328,828
September 10, 2026	56.33	55.8	55.8	56.33	55.76	490,509
September 09, 2026	56.52	56.33	56.33	56.74	56.14	383,236
September 08, 2026	57.75	56.66	56.66	57.92	56.64	472,173
September 04, 2026	58	57.68	57.68	58.44	57.65	406,224
September 03, 2026	58	58.07	58.07	58.75	57.23	561,585
September 02, 2026	57.98	57.87	57.87	58.44	57.54	409,738
September 01, 2026	58.71	57.97	57.97	59.13	57.86	454,474
August 31, 2026	58.51	58.92	58.92	59.28	58.44	544,312
August 28, 2026	58.71	58.55	58.55	59.15	58.49	311,828
August 27, 2026	58.35	58.59	58.59	58.92	58.29	334,029
August 26, 2026	58.55	58.43	58.43	58.91	58.35	360,312
August 25, 2026	58.74	58.54	58.54	59.22	58.37	605,177
August 24, 2026	58.27	58.92	58.92	59.05	58.1	341,869
August 21, 2026	58.7	58.29	58.29	58.92	58.28	276,092
August 20, 2026	58.26	58.4	58.4	58.8	58.15	380,863
August 19, 2026	58.13	58.17	58.17	58.7	57.9	444,855
August 18, 2026	58.2	57.81	57.81	58.68	57.81	395,427
August 17, 2026	58.97	58.15	58.15	58.97	58.07	470,621
August 14, 2026	59.25	58.8	58.8	59.32	58.64	429,878
August 13, 2026	58.63	59.23	59.23	59.61	58.63	569,832
August 12, 2026	58.98	58.51	58.51	59.35	58.18	682,987
August 11, 2026	58.32	59.03	59.03	59.37	58.08	850,513
August 10, 2026	58.29	58.52	58.52	58.72	57.75	783,556
August 07, 2026	56.49	58.94	58.94	59.48	56.31	1.32M
August 06, 2026	56.4	56.79	56.79	57.7	56.32	867,218
August 05, 2026	57.14	56.11	56.11	57.38	55.85	530,416
August 04, 2026	56.16	57.15	57.15	57.21	56.03	649,860
August 03, 2026	54.81	55.75	55.75	55.97	54.81	636,494
July 31, 2026	54.6	54.41	54.41	55.14	54.01	450,964
July 30, 2026	54.4	54.44	54.44	54.73	53.33	593,093
July 29, 2026	55.39	54.32	54.32	55.4	54.29	514,382
July 28, 2026	54.02	55.32	55.32	55.4	54	518,841