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 $1,154.57 as of September 11, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 3 years ago would be worth $1,120.12, while $1000 invested 1 year ago would be worth $1,015.15. This corresponds to total returns of 15.46%, 12.01%, 1.51%, respectively, with annualized returns of 3.83%, 3.85%, 1.51%.

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
September 11, 2026	49.95	49.94	49.94	49.95	49.93	35,200
September 10, 2026	49.96	49.95	49.95	49.97	49.94	40,879
September 09, 2026	49.99	50	50	50	49.99	38,980
September 08, 2026	50	50.01	50.01	50.01	50	32,217
September 04, 2026	49.98	50	50	50	49.98	21,985
September 03, 2026	50	49.99	49.99	50	49.98	59,342
September 02, 2026	49.95	49.96	49.96	49.96	49.95	15,303
September 01, 2026	49.95	49.95	49.95	49.95	49.94	63,656
August 31, 2026	49.95	49.95	49.95	49.96	49.94	60,073
August 28, 2026	49.99	49.95	49.95	50	49.94	21,870
August 27, 2026	49.98	49.98	49.98	49.99	49.98	79,017
August 26, 2026	50.14	50.14	50.14	50.14	50.13	28,174
August 25, 2026	50.13	50.15	50.15	50.15	50.13	22,572
August 24, 2026	50.13	50.13	50.13	50.13	50.12	43,841
August 21, 2026	50.13	50.13	50.13	50.14	50.12	24,194
August 20, 2026	50.13	50.13	50.13	50.13	50.12	22,192
August 19, 2026	50.12	50.12	50.12	50.12	50.12	30,959
August 18, 2026	50.11	50.12	50.12	50.12	50.11	42,381
August 17, 2026	50.11	50.11	50.11	50.11	50.1	34,892
August 14, 2026	50.12	50.11	50.11	50.12	50.1	23,609
August 13, 2026	50.09	50.1	50.1	50.1	50.09	20,296
August 12, 2026	50.09	50.08	50.08	50.09	50.07	24,537
August 11, 2026	50.06	50.06	50.06	50.06	50.05	13,947
August 10, 2026	50.04	50.05	50.05	50.05	50.04	6,320
August 07, 2026	50.07	50.06	50.06	50.07	50.05	48,780
August 06, 2026	50.03	50.02	50.02	50.03	50.01	30,221
August 05, 2026	50.02	50.03	50.03	50.03	50.01	30,698
August 04, 2026	50	50.02	50.02	50.02	50	31,366
August 03, 2026	50	49.99	49.99	50	49.98	21,653
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