American Century Ultra Fund - I Class (TWUIX) NASDAQ

Currency In USD

TWUIX Historical Return

If you invested $1000 in American Century Ultra Fund - I Class (TWUIX) 10 years ago, it would be worth $4,982.21 as of August 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,553.35, while $1000 invested 1 year ago would be worth $1,116.68. This corresponds to total returns of 398.22%, 55.33%, 11.67%, respectively, with annualized returns of 17.41%, 9.21%, 11.67%.

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

TWUIX Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low
August 21, 2026	106.43	106.43	106.43	106.43	106.43
August 20, 2026	105.69	105.69	105.69	105.69	105.69
August 19, 2026	106.71	106.71	106.71	106.71	106.71
August 18, 2026	108.73	106.82	106.82	108.73	106.82
August 17, 2026	108.73	108.4	108.4	108.73	108.4
August 14, 2026	109.32	108.73	108.73	109.32	108.73
August 13, 2026	109.32	109.32	109.32	109.32	109.32
August 12, 2026	108.26	108.26	108.26	108.26	108.26
August 11, 2026	108.25	107.54	107.54	108.25	107.54
August 10, 2026	108.25	108.25	108.25	108.25	108.25
August 07, 2026	107.31	108.39	108.39	108.39	107.31
August 06, 2026	107.31	107.31	107.31	107.31	107.31
August 05, 2026	107.84	107.84	107.84	107.84	107.84
August 04, 2026	108.01	108.01	108.01	108.01	108.01
August 03, 2026	105.6	105.6	105.6	105.6	105.6
July 31, 2026	101.18	101.18	101.18	101.18	101.18
July 30, 2026	98.78	98.78	98.78	98.78	98.78
July 29, 2026	98.78	98.78	98.78	98.78	98.78
July 28, 2026	100.53	100.53	100.53	100.53	100.53
July 27, 2026	100.87	100.87	100.87	100.87	100.87
July 24, 2026	101.81	101.81	101.81	101.81	101.81
July 23, 2026	101.81	101.81	101.81	101.81	101.81
July 22, 2026	104.09	104.09	104.09	104.09	104.09
July 21, 2026	104.68	104.68	104.68	104.68	104.68
July 20, 2026	103.46	103.46	103.46	103.46	103.46
July 17, 2026	103.5	103.5	103.5	103.5	103.5
July 16, 2026	105.46	105.46	105.46	105.46	105.46
July 15, 2026	107.26	107.26	107.26	107.26	107.26
July 14, 2026	106.6	106.6	106.6	106.6	106.6
July 13, 2026	105.4	105.4	105.4	105.4	105.4
July 10, 2026	106.92	106.92	106.92	106.92	106.92
July 09, 2026	106.69	106.69	106.69	106.69	106.69
July 08, 2026	105.75	105.75	105.75	105.75	105.75
July 07, 2026	105.57	105.57	105.57	105.57	105.57
July 06, 2026	106.28	106.28	106.28	106.28	106.28
July 02, 2026	105.07	105.07	105.07	105.07	105.07
July 01, 2026	106.11	106.11	106.11	106.11	106.11
June 30, 2026	106.74	106.74	106.74	106.74	106.74
June 29, 2026	105.12	105.12	105.12	105.12	105.12
June 26, 2026	102.68	102.68	102.68	102.68	102.68
June 25, 2026	102.43	102.43	102.43	102.43	102.43
June 24, 2026	102.92	102.92	102.92	102.92	102.92
June 23, 2026	103.07	103.07	103.07	103.07	103.07
June 22, 2026	106.73	106.73	106.73	106.73	106.73
June 18, 2026	106.73	106.73	106.73	106.73	106.73
June 17, 2026	105.14	105.14	105.14	105.14	105.14
June 16, 2026	106.5	106.5	106.5	106.5	106.5
June 15, 2026	107.4	107.4	107.4	107.4	107.4
June 12, 2026	104.92	104.92	104.92	104.92	104.92
June 11, 2026	105	105	105	105	105
June 10, 2026	103.11	103.11	103.11	103.11	103.11
June 09, 2026	105.47	105.47	105.47	105.47	105.47
June 08, 2026	106.1	106.1	106.1	106.1	106.1
June 05, 2026	109.75	109.75	109.75	109.75	109.75
June 04, 2026	109.75	109.75	109.75	109.75	109.75
June 03, 2026	109.36	109.36	109.36	109.36	109.36
June 02, 2026	111.16	111.16	111.16	111.16	111.16
June 01, 2026	111.57	111.57	111.57	111.57	111.57
May 29, 2026	110.41	110.41	110.41	110.41	110.41
May 28, 2026	110.41	110.41	110.41	110.41	110.41