US Treasury 12 Month Bill ETF (OBIL) NASDAQ

Currency In USD

OBIL Historical Return

If you invested $1000 in The RBB Fund, Inc. - US Treasury 12 Month Bill ETF (OBIL) since IPO date, it would be worth $1,155.49 as of August 02, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 3 years ago would be worth $1,127.09, while $1000 invested 1 year ago would be worth $1,021.36. This corresponds to total returns of 15.55%, 12.71%, 2.14%, respectively, with annualized returns of 3.97%, 4.06%, 2.14%.

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

OBIL Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
July 31, 2026	49.98	49.98	49.98	49.98	49.97	105,082
July 30, 2026	49.98	49.98	49.98	49.99	49.97	25,538
July 29, 2026	49.93	49.97	49.97	49.97	49.91	87,341
July 28, 2026	49.93	49.94	49.94	49.95	49.93	12,456
July 27, 2026	50.07	50.09	50.09	50.09	50.07	21,113
July 23, 2026	50.04	50.05	50.05	50.06	50.04	29,116
July 22, 2026	50.06	50.06	50.06	50.07	50.06	24,678
July 21, 2026	50.08	50.06	50.06	50.1	50.06	205,312
July 20, 2026	50.09	50.09	50.09	50.09	50.07	48,128
July 17, 2026	50.1	50.1	50.1	50.11	50.09	14,367
July 16, 2026	50.08	50.09	50.09	50.09	50.08	52,519
July 15, 2026	50.08	50.09	50.09	50.09	50.07	56,023
July 14, 2026	50.06	50.06	50.06	50.06	50.04	58,995
July 13, 2026	50.02	50.01	50.01	50.03	50	29,281
July 10, 2026	50.04	50.03	50.03	50.05	50.03	36,604
July 09, 2026	50.02	50.03	50.03	50.03	50.01	35,982
July 08, 2026	50.02	50.01	50.01	50.02	50	33,397
July 07, 2026	50.03	50.01	50.01	50.03	50	23,963
July 06, 2026	50.03	50.03	50.03	50.03	50.02	40,548
July 02, 2026	50.01	50.02	50.02	50.02	50.01	20,729
July 01, 2026	49.97	49.98	49.98	49.98	49.97	23,221
June 30, 2026	49.97	49.98	49.98	49.98	49.97	19,560
June 29, 2026	49.98	49.97	49.97	49.98	49.97	19,115
June 26, 2026	50.14	50.14	50.14	50.14	50.13	18,800
June 25, 2026	50.12	50.12	50.12	50.12	50.11	228,655
June 24, 2026	50.09	50.1	50.1	50.1	50.09	27,689
June 23, 2026	50.08	50.09	50.09	50.09	50.08	35,068
June 22, 2026	50.07	50.07	50.07	50.08	50.05	37,373
June 18, 2026	50.07	50.09	50.09	50.09	50.07	119,059
June 17, 2026	50.12	50.05	50.05	50.13	50.05	25,414
June 16, 2026	50.12	50.13	50.13	50.13	50.12	33,714
June 15, 2026	50.11	50.12	50.12	50.13	50.11	41,659
June 12, 2026	50.11	50.11	50.11	50.11	50.1	31,891
June 11, 2026	50.06	50.1	50.1	50.1	50.06	44,232
June 10, 2026	50.06	50.07	50.07	50.07	50.06	18,757
June 09, 2026	50.08	50.07	50.07	50.08	50.06	28,304
June 08, 2026	50.06	50.07	50.07	50.07	50.05	18,024
June 05, 2026	50.04	50.05	50.05	50.05	50.03	24,137
June 04, 2026	50.06	50.06	50.06	50.06	50.05	64,795
June 03, 2026	50.05	50.04	50.04	50.05	50.04	39,484
June 02, 2026	50.04	50.05	50.05	50.05	50.04	26,639
June 01, 2026	50.04	50.04	50.04	50.04	50.02	32,908
May 29, 2026	50.04	50.05	50.05	50.05	50.03	18,194
May 28, 2026	50.03	50.03	50.03	50.03	50.02	25,915
May 27, 2026	50.17	50.17	50.17	50.17	50.16	24,959
May 26, 2026	50.15	50.15	50.15	50.16	50.14	40,359
May 22, 2026	50.15	50.14	50.14	50.15	50.13	11,076
May 21, 2026	50.12	50.13	50.13	50.13	50.11	42,699
May 20, 2026	50.12	50.14	50.14	50.15	50.12	41,702
May 19, 2026	50.12	50.12	50.12	50.12	50.11	60,291
May 18, 2026	50.12	50.12	50.12	50.12	50.11	120,647
May 15, 2026	50.1	50.11	50.11	50.11	50.1	20,857
May 14, 2026	50.11	50.11	50.11	50.11	50.1	34,857
May 13, 2026	50.1	50.1	50.1	50.1	50.08	62,703
May 12, 2026	50.08	50.09	50.09	50.09	50.08	40,442
May 11, 2026	50.1	50.1	50.1	50.1	50.09	54,435
May 08, 2026	50.1	50.11	50.11	50.11	50.1	15,602
May 07, 2026	50.09	50.08	50.08	50.1	50.08	17,117
May 06, 2026	50.08	50.09	50.09	50.09	50.08	23,429
May 05, 2026	50.07	50.07	50.07	50.08	50.06	19,138