US Treasury 12 Month Bill ETF (OBIL) NASDAQ
Currency In USD
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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 $1,158.96 as of August 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 3 years ago would be worth $1,126.91, while $1000 invested 1 year ago would be worth $1,022.75. This corresponds to total returns of 15.9%, 12.69%, 2.28%, respectively, with annualized returns of 3.99%, 4.06%, 2.28%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
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OBIL Historical Data
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| 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 |
| 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 |
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