VANGUARD ULTRA-SHORT TREASURY ETF is a ETF series of VANGUARD INSTITUTIONAL INDEX FUNDS (series S000090173). Net assets $898.4M as of 2026-03-31. Index fund.
Showing 15 of 92 holdings by value.
| Holding | Ticker | Value | % of fund |
|---|---|---|---|
| United States Treasury Bill | — | $34.0M | 377.98% |
| United States Treasury Bill | — | $33.5M | 372.46% |
| United States Treasury Bill | — | $29.1M | 323.44% |
| United States Treasury Bill | — | $28.9M | 321.48% |
| United States Treasury Bill | — | $22.8M | 253.60% |
| United States Treasury Bill | — | $22.6M | 251.71% |
| United States Treasury Bill | — | $22.4M | 248.92% |
| United States Treasury Bill | — | $22.2M | 246.99% |
| United States Treasury Bill | — | $21.9M | 243.75% |
| United States Treasury Bill | — | $21.6M | 240.51% |
| United States Treasury Bill | — | $21.5M | 238.88% |
| United States Treasury Bill | — | $20.8M | 231.76% |
| United States Treasury Bill | — | $17.4M | 193.65% |
| United States Treasury Bill | — | $16.7M | 185.75% |
| United States Treasury Bill | — | $15.8M | 175.73% |
| Report date | Net assets |
|---|---|
| 2026-03-31 | $898.4M |
| 2025-12-31 | $530.1M |
| 2025-09-30 | $433.1M |
| 2025-06-30 | $247.3M |
| 2025-03-31 | $94.3M |