Fund · iShares Morningstar Mid-Cap ETF · measured from SEC filings
IMCB holdings
IMCB reports 396 holdings and behaves like 285.6 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: 100% at a quoted market price (level 1), 11 issuer countries.
What stands out
as of 2026-07-31IMCB's largest investment is Sandisk Corp at 1.07% of net assets. Seagate Technology Holdings Plc and Western Digital Corp follow; the three together are 3.14%. Ten companies are 6.94% of the fund; the other 386 share the rest. Among the 721 equity funds measured here, IMCB behaves like 285.6 holdings against a median of 42.4 — 6.7 times the median. Across 27 quarterly filings IMCB has become less concentrated: it behaved like 137.6 at 2019-10-31 and 270.3 at 2026-04-30. Between the 2026-01-31 and 2026-04-30 filings 3 positions were added and 1 dropped; 8.2% 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 2019
27Between 2019-10-31 and 2026-04-30, IMCB went from behaving like 137.6 equally weighted positions to 270.3 — 96% more, while its top ten went from 13.72% to 8.75% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-04-30 | 407 | 270.3 | 8.75% | 1.07% |
| 2026-01-31 | 405 | 297.3 | 6.55% | 0.92% |
| 2025-10-31 | 409 | 288.6 | 7.54% | 1.19% |
| 2025-07-31 | 407 | 296.3 | 7.03% | 1.18% |
| 2025-04-30 | 437 | 317.9 | 6.56% | 0.87% |
| 2025-01-31 | 439 | 329.9 | 5.98% | 0.67% |
| 2024-10-31 | 452 | 334.3 | 5.93% | 0.76% |
| 2024-07-31 | 451 | 342.8 | 5.31% | 0.57% |
Earlier filings (19 more, back to 2019-10-31)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-04-30 | 459 | 334.8 | 6.05% | 0.74% |
| 2024-01-31 | 461 | 339.9 | 5.93% | 0.7% |
| 2023-10-31 | 474 | 342.2 | 5.74% | 0.62% |
| 2023-07-31 | 478 | 351.4 | 5.7% | 0.66% |
| 2023-04-30 | 506 | 363.9 | 5.36% | 0.57% |
| 2023-01-31 | 508 | 375.4 | 5.24% | 0.54% |
| 2022-10-31 | 525 | 373 | 5.8% | 0.67% |
| 2022-07-31 | 530 | 390.4 | 5.03% | 0.55% |
| 2022-04-30 | 566 | 392.1 | 5.47% | 0.61% |
| 2022-01-31 | 564 | 413.2 | 4.75% | 0.52% |
| 2021-10-31 | 569 | 413 | 5.38% | 0.65% |
| 2021-07-31 | 572 | 426 | 4.65% | 0.57% |
| 2021-04-30 | 506 | 379.9 | 5.15% | 0.61% |
| 2021-01-31 | 165 | 125.9 | 13.8% | 1.62% |
| 2020-10-31 | 167 | 127.9 | 13.21% | 1.47% |
| 2020-07-31 | 170 | 131.8 | 12.62% | 1.42% |
| 2020-04-30 | 185 | 129.2 | 14.95% | 2.2% |
| 2020-01-31 | 186 | 142.3 | 12.6% | 1.69% |
| 2019-10-31 | 188 | 137.6 | 13.72% | 2.2% |
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 15 largest of 396 positions in IMCB's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: IMCB.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | Sandisk Corp. | 1.07% | 1.1% |
| 2 | Seagate Technology Holdings plc | 1.05% | 2.1% |
| 3 | Western Digital Corp. | 1.02% | 3.1% |
| 4 | Marvell Technology, Inc. | 1.00% | 4.1% |
| 5 | Corning, Inc. | 0.86% | 5.0% |
| 6 | Vertiv Holdings Co. | 0.86% | 5.9% |
| 7 | Newmont Corp. | 0.84% | 6.7% |
| 8 | Quanta Services, Inc. | 0.75% | 7.4% |
| 9 | Howmet Aerospace, Inc. | 0.66% | 8.1% |
| 10 | Williams Cos., Inc. (The) | 0.65% | 8.8% |
| 11 | Cummins, Inc. | 0.64% | 9.4% |
| 12 | Bank of New York Mellon Corp. (The) | 0.64% | 10.0% |
| 13 | PNC Financial Services Group, Inc. (The) | 0.63% | 10.7% |
| 14 | Johnson Controls International plc | 0.62% | 11.3% |
| 15 | FedEx Corp. | 0.62% | 11.9% |
By country of issuer
as of 2026-04-30Share of IMCB's own investments by the issuer country the filer reported (incorporation, not revenue). Each country links to every fund that holds it.
| Country | Share |
|---|---|
| United States | 92.31% |
| Ireland° | 4.03% |
| Netherlands° | 0.63% |
| Curaçao° | 0.59% |
| Liberia° | 0.46% |
| Switzerland | 0.40% |
| Cayman Islands° | 0.37% |
| United Kingdom | 0.32% |
Returns the fund reported
2019-08 – 2026-04Monthly total returns from Item B.5 of IMCB'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 0.05 percentage points over 81 months, which is roughly the distributions. Every month with the filing it came from: IMCB.json · all funds.
Who borrows IMCB'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, $14m was out to 10 borrowers. The largest, JP MORGAN SECURITIES LLC, held 31.9% of it.
| Borrower | On loan | Share of the loan |
|---|---|---|
| JP MORGAN SECURITIES LLC | $5m | 31.9% |
| GOLDMAN SACHS & CO. | $4m | 28.8% |
| GOLDMAN SACHS INTERNATIONAL | $3m | 24.0% |
| BNP PARIBAS PRIME BROKERAGE INTERNATIONAL LIMITED | $797,551 | 5.6% |
| SG AMERICAS SECURITIES LLC | $592,042 | 4.2% |
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 IMCB has filed, with each borrower: IMCB.json · all funds.
Since the previous filing
2026-01-31 → 2026-04-30404 positions became 406: 3 added (0.1% of the fund at the later date), 1 dropped (0.1% at the earlier date). Half the sum of all weight changes, a turnover proxy: 8.2%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of IMCB 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 |
|---|---|---|---|---|---|
| Sandisk Corp. | 0.50% | 1.07% | NIKE, Inc. | 0.52% | 0.35% |
| Marvell Technology, Inc. | 0.50% | 1.00% | Royal Caribbean Cruises Ltd. | 0.61% | 0.46% |
| Seagate Technology Holdings plc | 0.62% | 1.05% | Becton Dickinson & Co. | 0.43% | 0.30% |
| Western Digital Corp. | 0.64% | 1.02% | Cognizant Technology Solutions Corp. | 0.29% | 0.18% |
| Vertiv Holdings Co. | 0.52% | 0.86% | TransDigm Group, Inc. | 0.57% | 0.46% |
| Corning, Inc. | 0.58% | 0.86% | Arthur J Gallagher & Co. | 0.47% | 0.37% |
New: Medline, Inc. (0.13%), Corebridge Financial, Inc. (0.01%), Hologic, Inc. (0.00%). Gone: Hologic, Inc. (0.12%).
Asset categories and pricing
as of 2026-07-3199.06% equity, 0.94% 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 2026-04-30A 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 $1.55B. 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 IMCB (285.6). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| IVOO Vanguard S&P Mid-Cap 400 Index Fund | 403 | 276.9 | 8.32% | 2026-05-31 |
| DWM WisdomTree International Equity Fund | 1,406 | 277.3 | 11.38% | 2026-06-30 |
| VIOV Vanguard S&P Small-Cap 600 Value Index Fund | 463 | 282.3 | 8.86% | 2026-05-31 |
| BSVO EA Bridgeway Omni Small-Cap Value ETF | 576 | 283.5 | 7.98% | 2026-06-30 |
| DDWM WisdomTree Dynamic International Equity Fund | 1,533 | 284.3 | 11.22% | 2026-06-30 |
| IJH iShares Core S&P Mid-Cap ETF | 406 | 287.4 | 7.73% | 2026-06-30 |
| SLYV State Street(R) SPDR(R) S & P 600(TM) Small Cap Value ETF | 464 | 288.5 | 8.29% | 2026-06-30 |
| FEX First Trust Large Cap Core AlphaDEX Fund | 376 | 305.4 | 5.48% | 2026-07-31 |
| GSIE Goldman Sachs ActiveBeta(R) International Equity ETF | 658 | 305.7 | 10.5% | 2026-05-31 |
| IDEV iShares Core MSCI International Developed Markets ETF | 2,335 | 310.4 | 10.77% | 2026-07-31 |
Essays that examine IMCB
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.