257 essays 1,087 funds measured independent · not paid by any fund or issuer we cover

Fund · iShares Micro-Cap ETF · measured from SEC filings

IWC holdings

IWC reports 1,382 holdings and behaves like 572.6 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 28 quarters of filings.

Measured concentration

as of 2026-06-30

Read this figure with the following in mind

18.7% of net assets is securities-lending cash collateral, excluded from the figure; counted as filed the fund would read 27.3

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.

1,382 Positions reported
572.6 Effective holdings
2.4× Concentration multiple
5.46% Top ten weight

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: 99.99% at a quoted market price (level 1), 13 issuer countries.

What stands out

as of 2026-06-30

IWC's largest investment is Ouster Inc at 0.86% of net assets. Penguin Solutions Inc and Sellas Life Sciences Group Inc follow; the three together are 2.32%. Ten companies are 5.46% of the fund; the other 1,372 share the rest. Among the 721 equity funds measured here, IWC behaves like 572.6 holdings against a median of 42.4 — 13.5 times the median. Across 28 quarterly filings IWC has become more concentrated: it behaved like 749.2 at 2019-09-30 and 572.6 at 2026-06-30. Between the 2026-03-31 and 2026-06-30 filings 256 positions were added and 184 dropped; 34.6% 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

28

Between 2019-09-30 and 2026-06-30, IWC went from behaving like 749.2 equally weighted positions to 572.6 — 24% fewer, while its top ten went from 3.32% to 5.46% of net assets. Read across the funds on the concentration-over-time table.

PeriodHoldingsEffective Top 10Largest
2026-06-30 1,382 572.6 5.46% 0.86%
2026-03-31 1,310 354 10.6% 1.73%
2025-12-31 1,324 402.8 9.62% 1.42%
2025-09-30 1,344 491 7.82% 1.16%
2025-06-30 1,424 592.7 5.56% 0.74%
2025-03-31 1,436 575.5 5.55% 0.74%
2024-12-31 1,448 553.4 6.2% 1.47%
2024-09-30 1,447 663 4.09% 0.54%
Earlier filings (20 more, back to 2019-09-30)
PeriodHoldingsEffectiveTop 10Largest
2024-06-30 1,450 494.4 7.67% 1.33%
2024-03-31 1,491 529.8 7.39% 1.15%
2023-12-31 1,508 546.1 6.92% 1.73%
2023-09-30 1,533 635.9 5.63% 1.06%
2023-06-30 1,629 689.6 4.64% 1.18%
2023-03-31 1,724 652.8 5.19% 0.9%
2022-12-31 1,758 682.3 5.07% 0.89%
2022-09-30 1,786 769.5 4.22% 0.79%
2022-06-30 1,834 878.5 3.07% 0.38%
2022-03-31 1,786 668.5 4.95% 0.79%
2021-12-31 1,793 741 3.97% 0.54%
2021-09-30 1,786 806.2 4.07% 0.64%
2021-06-30 1,645 848 3.4% 0.42%
2021-03-31 1,284 415 9.23% 2.19%
2020-12-31 1,276 545 6.65% 1.22%
2020-09-30 1,271 563.2 6.95% 1.05%
2020-06-30 1,275 690.4 3.91% 0.43%
2020-03-31 1,395 586.8 5.86% 0.96%
2019-12-31 1,383 677.5 4.61% 0.71%
2019-09-30 1,405 749.2 3.32% 0.41%

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

18.69% collateral

IWC's filing lists 1,383 positions including 18.69% of net assets in securities-lending cash collateral. Counted as filed the fund reads 27.3 effective holdings with a top ten of 23.76%; on its own investments — the figure above — it reads 572.6 with a top ten of 5.46%. 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 2026-06-30

The 15 largest of 1,382 positions in IWC's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: listed with the point-in-time files, available on request.

#PositionWeightCumulative
1Ouster, Inc.0.86%0.9%
2Penguin Solutions, Inc.0.84%1.7%
3SELLAS Life Sciences Group, Inc.0.61%2.3%
4Innodata, Inc.0.53%2.9%
5Nurix Therapeutics, Inc.0.51%3.4%
6Interface, Inc.0.46%3.8%
7FuelCell Energy, Inc.0.43%4.3%
8Bandwidth, Inc.0.41%4.7%
9Vishay Precision Group, Inc.0.40%5.1%
10Butterfly Network, Inc.0.39%5.5%
11Monte Rosa Therapeutics, Inc.0.39%5.9%
12MBX Biosciences, Inc.0.38%6.2%
13Arteris, Inc.0.37%6.6%
14T1 Energy, Inc.0.37%7.0%
15Ellington Financial, Inc.0.37%7.4%

By country of issuer

as of 2026-06-30

Share of IWC's own investments by the issuer country the filer reported (incorporation, not revenue). Each country links to every fund that holds it.

CountryShare
United States 94.69%
Canada 1.46%
Cayman Islands° 0.92%
Israel 0.87%
Bermuda° 0.85%
Marshall Islands° 0.40%
United Kingdom 0.19%
British Virgin Islands° 0.18%

Returns the fund reported

2019-07 – 2026-06

Monthly total returns from Item B.5 of IWC's own filings, 84 months on record. Not computed here and not from a price feed.

58.3%Last twelve months filed
132%Whole series, compounded
20.4%Best month
-23.5%Worst month

Cross-checked against a series computed separately from prices: median difference 0.16 percentage points over 84 months, which is roughly the distributions. Every month with the filing it came from: IWC.json · all funds.

Who borrows IWC's shares

2026-06-30

The fund lends its holdings, and Item B.4.a of the filing names every firm holding them. At 2026-06-30, $288m was out to 27 borrowers, 18.95% of net assets. The largest, JP MORGAN SECURITIES LLC, held 28.8% of it.

BorrowerOn loanShare of the loan
JP MORGAN SECURITIES LLC $83m 28.8%
BNP PARIBAS PRIME BROKERAGE INTERNATIONAL LIMITED $36m 12.4%
GOLDMAN SACHS INTERNATIONAL $33m 11.4%
MORGAN STANLEY & CO LLC $29m 10.1%
BofA Securities, Inc. $27m 9.3%

Cash collateral reported against the loan: 18.69% of net assets, 98.6% of the amount lent. That is a floor on the collateral, not the whole of it — collateral the fund does not hold as a position is not in this filing, so a figure under 100% is not evidence of under-collateralisation. How that figure behaves across all funds. Every quarter IWC has filed, with each borrower: IWC.json · all funds.

Since the previous filing

2026-03-31 → 2026-06-30

1,302 positions became 1,374: 256 added (8.7% of the fund at the later date), 184 dropped (33.2% at the earlier date). Half the sum of all weight changes, a turnover proxy: 34.6%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of IWC compared this way, as a feed: changes.xml · all funds: filings received.

Largest increases2026-03-312026-06-30Largest decreases2026-03-312026-06-30
Penguin Solutions, Inc.0.19%0.84% Compass Therapeutics, Inc.0.14%0.06%
Ouster, Inc.0.22%0.86% ADC Therapeutics SA0.08%0.03%
SELLAS Life Sciences Group, Inc.0.15%0.61% Gevo, Inc.0.13%0.08%
FuelCell Energy, Inc.0.07%0.43% Fulcrum Therapeutics, Inc.0.10%0.05%
Bandwidth, Inc.0.10%0.41% Rayonier Advanced Materials, Inc.0.15%0.11%
Vishay Precision Group, Inc.0.11%0.40% Bristow Group, Inc.0.28%0.24%

New: Hyperliquid Strategies, Inc. (0.22%), Realloys, Inc. (0.18%), Canadian Solar, Inc. (0.17%), Vor BioPharma, Inc. (0.15%), CytomX Therapeutics, Inc. (0.15%), Relmada Therapeutics, Inc. (0.14%). Gone: Praxis Precision Medicines, Inc. (1.73%), Applied Digital Corp. (1.17%), Applied Optoelectronics, Inc. (1.16%), Cogent Biosciences, Inc. (1.14%), Terns Pharmaceuticals, Inc. (1.05%), Terawulf, Inc. (0.93%).

Asset categories and pricing

as of 2026-06-30

84.10% equity, 15.89% short-term investment as filed; 100.0% carried at a quoted market price (fair-value level 1), 0.0% at level 3. 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 2026-06-30

A 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 $1.52B. Notional of an interest-rate or currency swap is not equity exposure.

99.8%Stocks held directly
0%Swap notional (0)
0.04%Futures notional (1)
99.8%Sum, % of net assets

Full detail for every fund that files derivatives: leverage.json (CC BY 4.0).

Neighbours by effective holdings, equity funds

10

Every measured equity fund lined up by how many holdings it behaves like; these sit either side of IWC (572.6). Same filings, same arithmetic. Position in this list says nothing about which fund is better.

FundReportsBehaves likeTop tenAs of
VTWO Vanguard Russell 2000 Index Fund 1,954 513.7 7.78% 2026-05-31
IWN iShares Russell 2000 Value ETF 1,425 519.9 5.53% 2026-06-30
TLTD FlexShares Morningstar Developed Markets ex-US Factor Tilt Index Fund 2,279 531.2 7.53% 2026-07-31
ISCF iShares International Small-Cap Equity Factor ETF 1,180 557.1 5.69% 2026-07-31
EQAL Invesco Russell 1000 Equal Weight ETF 988 566.4 6.53% 2026-05-31
VXF Vanguard Extended Market Index Fund 3,371 582.2 7.55% 2026-06-30
DLS WisdomTree International SmallCap Dividend Fund 1,021 582.8 5.72% 2026-06-30
BBSC JPMorgan BetaBuilders U.S. Small Cap Equity ETF 853 601.1 4.59% 2026-07-31
GSSC Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF 1,320 610.4 6.56% 2026-05-31
DFIC Dimensional International Core Equity 2 ETF 4,128 640.4 6.91% 2026-07-31

Essays that examine IWC

0

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