Fund · iShares Treasury Floating Rate Bond ETF · measured from SEC filings
TFLO holdings
TFLO reports 9 holdings and behaves like 7.8 equally weighted ones, computed from its SEC Form N-PORT filing for 2026-07-31. The fact sheet publishes the first number; this page computes the second, and traces it across 27 quarters of filings.
Measured concentration
as of 2026-07-31Computed by this site from the fund's SEC Form N-PORT filing; what the measure does not tell you · every fund in one table · hold it with other funds? X-ray the mix. Pricing: 0.86% at a quoted market price (level 1), one issuer country.
What stands out
as of 2026-07-31TFLO's largest investment is U.S. Treasury Floating Rate Notes at 14.36% of net assets. U.S. Treasury Floating Rate Notes and U.S. Treasury Floating Rate Notes follow; the three together are 41.99%. Ten companies are 100% of the fund; the other -1 share the rest. Among the 192 bond funds measured here, TFLO behaves like 7.8 holdings against a median of 236.4 — 33.3 times more concentrated than the median. Across 27 quarterly filings TFLO has become less concentrated: it behaved like 4.4 at 2019-10-31 and 7.7 at 2026-04-30. Between the 2026-01-31 and 2026-04-30 filings 1 positions were added and 2 dropped; 18.2% of the weight moved.
Each sentence is read from the fund's own SEC filing; the class median is computed across the comparable bond funds on this site. Nothing here is a view on the fund.
Every filing since 2019
27Between 2019-10-31 and 2026-04-30, TFLO went from behaving like 4.4 equally weighted positions to 7.7 — 75% more, while its top ten went from 100% to 100% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-04-30 | 9 | 7.7 | 100% | 14.36% |
| 2026-01-31 | 10 | 8.6 | 100% | 13.51% |
| 2025-10-31 | 9 | 7.8 | 100% | 14.33% |
| 2025-07-31 | 9 | 7.7 | 100% | 14.32% |
| 2025-04-30 | 8 | 7.6 | 100% | 14.49% |
| 2025-01-31 | 9 | 7.9 | 100% | 14.66% |
| 2024-10-31 | 9 | 8.2 | 100% | 14.5% |
| 2024-07-31 | 9 | 7.9 | 100% | 15.8% |
Earlier filings (19 more, back to 2019-10-31)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-04-30 | 9 | 7.6 | 100% | 16.83% |
| 2024-01-31 | 9 | 7.8 | 100% | 17.61% |
| 2023-10-31 | 9 | 7.8 | 100% | 18.36% |
| 2023-07-31 | 9 | 7.4 | 100% | 20.05% |
| 2023-04-30 | 10 | 7.7 | 100% | 18.77% |
| 2023-01-31 | 8 | 6.8 | 100% | 19.96% |
| 2022-10-31 | 8 | 6.3 | 100% | 21.26% |
| 2022-07-31 | 8 | 4.1 | 100% | 39.51% |
| 2022-04-30 | 9 | 4.3 | 100% | 39.24% |
| 2022-01-31 | 8 | 3.2 | 100% | 48.36% |
| 2021-10-31 | 9 | 3.1 | 100% | 49.62% |
| 2021-07-31 | 9 | 3.8 | 100% | 45.05% |
| 2021-04-30 | 8 | 3.5 | 100% | 47.32% |
| 2021-01-31 | 10 | 4.4 | 100% | 41.21% |
| 2020-10-31 | 10 | 5.4 | 100% | 35.62% |
| 2020-07-31 | 8 | 4.5 | 100% | 38.66% |
| 2020-04-30 | 7 | 4.4 | 100% | 38.66% |
| 2020-01-31 | 7 | 4.2 | 100% | 38.62% |
| 2019-10-31 | 9 | 4.4 | 100% | 38.61% |
One row per filed reporting period, newest first, read from EDGAR. Quarterly because that is the public filing cadence. Rows marked * are published but held out of the comparison above; the methodology page says when and why.
Largest positions, as filed
as of 2026-04-30The 9 largest of 9 positions in TFLO's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: TFLO.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | United States Treasury | 14.36% | 14.4% |
| 2 | United States Treasury | 14.08% | 28.4% |
| 3 | United States Treasury | 13.54% | 42.0% |
| 4 | United States Treasury | 13.46% | 55.4% |
| 5 | United States Treasury | 13.20% | 68.6% |
| 6 | United States Treasury | 12.92% | 81.6% |
| 7 | United States Treasury | 12.84% | 94.4% |
| 8 | United States Treasury | 5.23% | 99.6% |
| 9 | BLACKROCK CASH FUNDS TREASURY SL AGENCY SHARES | 0.37% | 100.0% |
Returns the fund reported
2019-08 – 2026-04Monthly total returns from Item B.5 of TFLO's own filings, 81 months on record. Not computed here and not from a price feed.
Cross-checked against a series computed separately from prices: median difference — percentage points over 0 months, which is roughly the distributions. Every month with the filing it came from: TFLO.json · all funds.
Who borrows TFLO's shares
2026-07-31The fund lends its holdings, and Item B.4.a of the filing names every firm holding them. At 2026-07-31, $30m was out to 2 borrowers. The largest, CITIGROUP GLOBAL MARKETS INC., held 50% of it.
| Borrower | On loan | Share of the loan |
|---|---|---|
| CITIGROUP GLOBAL MARKETS INC. | $15m | 50.0% |
| DEUTSCHE BANK SECURITIES INC | $15m | 50.0% |
The filing reports no cash collateral position against this loan. Collateral taken in a form the fund does not hold as a position does not appear in N-PORT, so this is silence rather than absence. What the collateral figure can and cannot show. Every quarter TFLO has filed, with each borrower: TFLO.json · all funds.
Since the previous filing
2026-01-31 → 2026-04-3010 positions became 9: 1 added (5.2% of the fund at the later date), 2 dropped (18.2% at the earlier date). Half the sum of all weight changes, a turnover proxy: 18.2%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of TFLO compared this way, as a feed: changes.xml · all funds: filings received.
| Largest increases | 2026-01-31 | 2026-04-30 | Largest decreases | 2026-01-31 | 2026-04-30 |
|---|---|---|---|---|---|
| United States Treasury | 6.84% | 12.93% | |||
| United States Treasury | 10.74% | 12.84% | |||
| United States Treasury | 12.30% | 13.46% | |||
| United States Treasury | 13.51% | 14.36% | |||
| United States Treasury | 13.25% | 14.08% | |||
| United States Treasury | 12.74% | 13.55% |
New: United States Treasury (5.23%). Gone: United States Treasury (11.33%), United States Treasury (6.84%).
Asset categories and pricing
as of 2026-07-3199.14% debt, 0.86% short-term investment as filed; 0.9% carried at a quoted market price (fair-value level 1). Categories and levels are the filer's; what a low level-1 share does and does not mean is in the measure's page.
Neighbours by effective holdings, debt funds
10Every measured debt fund lined up by how many holdings it behaves like; these sit either side of TFLO (7.8). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| MAGS Roundhill Magnificent Seven ETF | 20 | 3.3 * | 90.33% | 2026-06-30 |
| USFR WisdomTree Floating Rate Treasury Fund | 5 | 3.8 | 100% | 2026-05-31 |
| MSTY YieldMax(R) MSTR Option Income Strategy ETF | 16 | 4.6 * | 99.97% | 2026-07-31 |
| BSJQ Invesco BulletShares 2026 High Yield Corporate Bond ETF | 39 | 6.2 | 66.77% | 2026-05-31 |
| HGER Harbor Commodity All-Weather Strategy ETF | 24 | 7.1 * | 99.51% | 2026-07-31 |
| BCI abrdn Bloomberg All Commodity Strategy K-1 Free ETF | 32 | 10.1 * | 70.2% | 2026-06-30 |
| DFIP Dimensional Inflation-Protected Securities Portfolio ETF | 21 | 12.4 | 81.87% | 2026-07-31 |
| IEF iShares 7-10 Year Treasury Bond ETF | 16 | 12.5 | 85.53% | 2026-05-31 |
| CSHI NEOS Enhanced Income 1-3 Month T-Bill ETF | 19 | 13.2 | 78.04% | 2026-06-30 |
| TDTF FlexShares iBoxx 5-Year Target Duration TIPS Index Fund | 17 | 13.5 | 71.87% | 2026-07-31 |
Essays that examine TFLO
0Mentions are detected across the full text of every article, so an appearance may be a passing comparison rather than the subject. Nothing here is a recommendation to buy or sell — see the disclaimer.