Fund · iShares Yield Optimized Bond ETF · measured from SEC filings
BYLD holdings
BYLD reports 13 holdings and behaves like 9.4 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 2026-07-31Read this figure with the following in mind
76.8% of net assets carries no asset category in the filing
30.1% of net assets is securities-lending cash collateral, excluded from the figure; counted as filed the fund would read 5.1
The figure below is what the filing says, published unchanged. What it may not do is sit beside a plain long-only fund and be read as the same quantity. How comparability is decided.
Computed 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: 100% at a quoted market price (level 1), one issuer country.
What stands out
as of 2026-07-31The largest line in BYLD's filing is not a stock but Ishares Broad USD High Yield Corporate Bond ETF, a fund position at 20.11% of net assets. Ten companies are 94.84% of the fund; the other 3 share the rest. Among the 12 unknown funds measured here, BYLD behaves like 9.4 holdings against a median of 3.2 — 2.9 times the median. Across 27 quarterly filings BYLD has become less concentrated: it behaved like 6 at 2019-10-31 and 8.9 at 2026-04-30.
Each sentence is read from the fund's own SEC filing; the class median is computed across the comparable unknown funds on this site. Nothing here is a view on the fund.
Every filing since 2019
27Between 2019-10-31 and 2026-04-30, BYLD went from behaving like 6 equally weighted positions to 8.9 — 48% more, while its top ten went from 100% to 97.9% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-04-30 | 12 | 8.9 | 97.9% | 20.11% |
| 2026-01-31 | 12 | 8.9 | 97.91% | 20.11% |
| 2025-10-31 | 12 | 8.5 | 98.49% | 19.82% |
| 2025-07-31 | 12 | 10.5 | 95.18% | 10.87% |
| 2025-04-30 | 12 | 10.6 | 94.85% | 10.63% |
| 2025-01-31 | 11 | 8 | 99.85% | 20.03% |
| 2024-10-31 | 7 | 5.2 | 100% | 25.51% |
| 2024-07-31 | 9 | 6.2 | 100% | 21.07% |
Earlier filings (19 more, back to 2019-10-31)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-04-30 | 8 | 6.1 | 100% | 24.62% |
| 2024-01-31 | 8 | 5.9 | 100% | 26.68% |
| 2023-10-31 | 8 | 5.8 | 100% | 28.1% |
| 2023-07-31 | 8 | 5.7 | 100% | 28.69% |
| 2023-04-30 | 8 | 5.5 | 100% | 29.87% |
| 2023-01-31 | 8 | 5.3 | 100% | 29.94% |
| 2022-10-31 | 7 | 4.4 | 100% | 30.27% |
| 2022-07-31 | 7 | 4.6 | 100% | 30.21% |
| 2022-04-30 | 10 | 5.2 | 100% | 30.12% |
| 2022-01-31 | 8 | 4.6 | 100% | 30.06% |
| 2021-10-31 | 7 | 4.2 | 100% | 30.22% |
| 2021-07-31 | 7 | 4.2 | 100% | 30.5% |
| 2021-04-30 | 7 | 4.6 | 100% | 30.08% |
| 2021-01-31 | 8 | 5.3 | 100% | 30.26% |
| 2020-10-31 | 9 | 5.9 | 100% | 30.3% |
| 2020-07-31 | 9 | 5.4 | 100% | 29.24% |
| 2020-04-30 | 7 | 4.7 | 100% | 31.7% |
| 2020-01-31 | 7 | 5.2 | 100% | 28.3% |
| 2019-10-31 | 10 | 6 | 100% | 28.04% |
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.
As filed, collateral included
30.08% collateralBYLD's filing lists 14 positions including 30.08% of net assets in securities-lending cash collateral. Counted as filed the fund reads 5.1 effective holdings with a top ten of 120.75%; on its own investments — the figure above — it reads 9.4 with a top ten of 94.84%. The collateral is matched by a liability and is not a holding the fund chose; since 2026-09-18 every figure on this site sets it aside (methodology). Both numbers are in the data.
Largest positions, as filed
as of 2026-04-30The 12 largest of 13 positions in BYLD's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: BYLD.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | iShares Trust | 20.11% | 20.1% |
| 2 | iShares Trust | 11.27% | 31.4% |
| 3 | iShares Trust | 10.14% | 41.5% |
| 4 | iShares, Inc. | 10.01% | 51.5% |
| 5 | iShares Trust | 9.99% | 61.5% |
| 6 | iShares Trust | 9.58% | 71.1% |
| 7 | iShares Trust | 8.73% | 79.8% |
| 8 | iShares GNMA Bond ETF | 8.00% | 87.8% |
| 9 | iShares Trust | 5.57% | 93.4% |
| 10 | iShares Trust | 4.50% | 97.9% |
| 11 | iShares Trust | 2.00% | 99.9% |
| 12 | BlackRock Funds III | 0.10% | 100.0% |
Returns the fund reported
2019-08 – 2026-04Monthly total returns from Item B.5 of BYLD'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: BYLD.json · all funds.
Who borrows BYLD'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, $132m was out to 5 borrowers. The largest, CITIGROUP GLOBAL MARKETS INC., held 36.7% of it.
| Borrower | On loan | Share of the loan |
|---|---|---|
| CITIGROUP GLOBAL MARKETS INC. | $48m | 36.7% |
| Wells Fargo Bank, National Association | $37m | 28.4% |
| JP MORGAN SECURITIES LLC | $32m | 24.2% |
| RBC Capital Markets LLC | $13m | 9.8% |
| Wells Fargo Securities LLC | $1m | 0.9% |
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 BYLD has filed, with each borrower: BYLD.json · all funds.
Since the previous filing
2026-01-31 → 2026-04-3012 positions became 12: 0 added (0.0% of the fund at the later date), 0 dropped (0.0% at the earlier date). Half the sum of all weight changes, a turnover proxy: 0.3%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of BYLD 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 |
|---|---|---|---|---|---|
| iShares Trust | 9.96% | 10.14% | iShares Trust | 11.43% | 11.27% |
| iShares Trust | 5.46% | 5.57% | iShares, Inc. | 10.11% | 10.01% |
| iShares Trust | 4.48% | 4.50% | iShares Trust | 9.61% | 9.58% |
| BlackRock Funds III | 0.10% | 0.10% | iShares Trust | 8.75% | 8.73% |
| iShares Trust | 20.11% | 20.11% | iShares Trust | 10.01% | 9.99% |
| iShares GNMA Bond ETF | 7.99% | 8.00% | iShares Trust | 2.00% | 1.99% |
Asset categories and pricing
as of 2026-07-3176.81% unknown, 23.19% short-term investment as filed; 100.0% 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, unknown funds
7Every measured unknown fund lined up by how many holdings it behaves like; these sit either side of BYLD (9.4). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| SQQQ ProShares UltraPro Short QQQ | 13 | 3.3 * | 99.01% | 2026-05-31 |
| AOA iShares Core 80/20 Aggressive Allocation ETF | 8 | 3.4 | 100% | 2026-07-31 |
| SPXU ProShares UltraPro Short S&P500 | 12 | 3.5 * | 98.19% | 2026-05-31 |
| AOR iShares Core 60/40 Balanced Allocation ETF | 8 | 3.8 | 100% | 2026-07-31 |
| SSUS Day Hagan Smart Sector ETF | 16 | 6 | 88.65% | 2026-07-31 |
| HNDL Strategy Shares NASDAQ 7HANDL Index ETF | 21 | 13.7 | 78.01% | 2026-07-31 |
| THD iShares MSCI Thailand ETF | 84 | 15.6 | 60.07% | 2026-05-31 |
Essays that examine BYLD
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.