Fund · iShares Top 20 U.S. Stocks ETF · measured from SEC filings
TOPT holdings
TOPT reports 23 holdings and behaves like 13.8 equally weighted ones, computed from its SEC Form N-PORT filing for 2026-06-30. The fact sheet publishes the first number; this page computes the second, and traces it across 7 quarters of filings.
Measured concentration
as of 2026-06-30Computed 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 2026-06-30TOPT's largest investment is Nvidia Corp at 15.49% of net assets. Apple Inc and Alphabet Inc follow; the three together are 35.78%. Ten companies are 69.28% of the fund; the other 13 share the rest. Among the 721 equity funds measured here, TOPT behaves like 13.8 holdings against a median of 42.4 — 3.0 times more concentrated than the median. Across 7 quarterly filings TOPT has held roughly steady since 2024-12-31 (12.3 then, 13.8 now). Between the 2026-03-31 and 2026-06-30 filings 4 positions were added and 3 dropped; 13.4% of the weight moved.
Each sentence is read from the fund's own SEC filing; the class median is computed across the comparable equity funds on this site. Nothing here is a view on the fund.
Every filing since 2024
7Between 2024-12-31 and 2026-06-30, TOPT went from behaving like 12.3 equally weighted positions to 13.8 — 12% more, while its top ten went from 73.31% to 69.28% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-06-30 | 23 | 13.8 | 69.28% | 15.49% |
| 2026-03-31 | 22 | 13.5 | 69.34% | 16.01% |
| 2025-12-31 | 22 | 12.6 | 72.58% | 15.6% |
| 2025-09-30 | 23 | 12.1 | 73.08% | 16.22% |
| 2025-06-30 | 23 | 12.1 | 74.37% | 15.6% |
| 2025-03-31 | 22 | 12.9 | 72.1% | 15.49% |
| 2024-12-31 | 22 | 12.3 | 73.31% | 15.84% |
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 2026-06-30The 15 largest of 23 positions in TOPT's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: TOPT.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | NVIDIA Corp. | 15.49% | 15.5% |
| 2 | Apple, Inc. | 13.58% | 29.1% |
| 3 | Alphabet, Inc. | 6.70% | 35.8% |
| 4 | Alphabet, Inc. | 5.34% | 41.1% |
| 5 | Micron Technology, Inc. | 5.34% | 46.4% |
| 6 | Microsoft Corp. | 4.94% | 51.4% |
| 7 | Tesla, Inc. | 4.80% | 56.2% |
| 8 | Broadcom, Inc. | 4.42% | 60.6% |
| 9 | Amazon.com, Inc. | 4.36% | 65.0% |
| 10 | Meta Platforms, Inc. | 4.30% | 69.3% |
| 11 | Eli Lilly & Co. | 3.89% | 73.2% |
| 12 | Advanced Micro Devices, Inc. | 3.88% | 77.1% |
| 13 | Berkshire Hathaway, Inc. | 3.76% | 80.8% |
| 14 | JPMorgan Chase & Co. | 3.60% | 84.4% |
| 15 | Intel Corp. | 2.70% | 87.1% |
Returns the fund reported
2024-10 – 2026-06Monthly total returns from Item B.5 of TOPT's own filings, 21 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: TOPT.json · all funds.
Since the previous filing
2026-03-31 → 2026-06-3022 positions became 23: 4 added (8.5% of the fund at the later date), 3 dropped (6.2% at the earlier date). Half the sum of all weight changes, a turnover proxy: 13.4%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of TOPT compared this way, as a feed: changes.xml · all funds: filings received.
| Largest increases | 2026-03-31 | 2026-06-30 | Largest decreases | 2026-03-31 | 2026-06-30 |
|---|---|---|---|---|---|
| Micron Technology, Inc. | 1.97% | 5.34% | Exxon Mobil Corp. | 3.68% | 2.32% |
| Tesla, Inc. | 4.30% | 4.80% | Microsoft Corp. | 5.98% | 4.94% |
| Alphabet, Inc. | 6.33% | 6.70% | Berkshire Hathaway, Inc. | 4.55% | 3.76% |
| Alphabet, Inc. | 5.07% | 5.34% | Walmart, Inc. | 2.82% | 2.04% |
| Meta Platforms, Inc. | 4.12% | 4.30% | Costco Wholesale Corp. | 2.29% | 1.70% |
| Broadcom, Inc. | 4.28% | 4.42% | Johnson & Johnson | 3.05% | 2.51% |
New: Advanced Micro Devices, Inc. (3.88%), Intel Corp. (2.70%), Cisco Systems, Inc. (1.90%), N/A (0.00%). Gone: Mastercard, Inc. (2.11%), Netflix, Inc. (2.10%), AbbVie, Inc. (1.99%).
Asset categories and pricing
as of 2026-06-3099.92% equity, 0.08% 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.
Derivative exposure and counterparties
as of 2026-06-30A position count cannot describe a fund that uses derivatives, because a swap is filed at its unrealised gain, not its exposure. These are the notionals the fund itself reported, against net assets of $657M. Notional of an interest-rate or currency swap is not equity exposure.
Full detail for every fund that files derivatives: leverage.json (CC BY 4.0).
Neighbours by effective holdings, equity funds
10Every measured equity fund lined up by how many holdings it behaves like; these sit either side of TOPT (13.8). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| FDIS Fidelity MSCI Consumer Discretionary Index ETF | 247 | 13 | 54.83% | 2026-07-31 |
| EWI iShares MSCI Italy ETF | 28 | 13 | 71.25% | 2026-05-31 |
| URA Global X Uranium ETF | 66 | 13.1 | 63.33% | 2026-07-31 |
| LSGR Natixis Loomis Sayles Focused Growth ETF | 22 | 13.2 | 73.33% | 2026-06-30 |
| FTEC Fidelity MSCI Information Technology Index ETF | 282 | 13.4 | 62.26% | 2026-07-31 |
| SMH VanEck Semiconductor ETF | 25 | 13.9 | 70.27% | 2026-06-30 |
| IEO iShares U.S. Oil & Gas Exploration & Production ETF | 47 | 13.9 | 71.25% | 2026-06-30 |
| EWL iShares MSCI Switzerland ETF | 45 | 14.1 | 68.01% | 2026-05-31 |
| IAT iShares U.S. Regional Banks ETF | 33 | 14.1 | 69.48% | 2026-06-30 |
| EPOL iShares MSCI Poland ETF | 37 | 14.2 | 67.97% | 2026-05-31 |
Essays that examine TOPT
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.