Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
IWC vs VOX: how they differ
IWC and VOX hold 0% of their weight in the same names, and IWC returned more over the year.
iShares Micro-Cap ETF and Vanguard Communication Services Index Fund.
What they hold in common
By the books each fund has filed, IWC and VOX hold 0% of their money in the same securities at the same weight.
| Only in IWC | Only in VOX |
|---|---|
| CAREDX 0.61% | Meta Platforms Inc 21.12% |
| SELLAS LIFE SCIENCES GROUP INC 0.60% | Alphabet Inc 16.14% |
| NURIX THERAPEUTICS 0.59% | Alphabet Inc 10.61% |
| PENGUIN SOLUTIONS INC 0.58% | Netflix Inc 4.77% |
| OUSTER 0.52% | Verizon Communications Inc 4.17% |
| VIRIDIAN THERAPEUTICS ORS 0.48% | Walt Disney Co/The 3.96% |
| INTERFACE 0.47% | AT&T Inc 3.69% |
| MBX BIOSCIENCES 0.45% | Warner Bros Discovery Inc 2.74% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated May 31, 2026 and Sep 10, 2026.
| IWC iShares Micro-Cap ETF | VOX Vanguard Communication Services Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | Russell Microcap | Communication Services |
| Total return, 1 year | +31.3% | +2.9% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +13.8 pts | −14.6 pts |
| Expense ratio | not published | 0.09% |
| Already in the S&P 500 | 91.9% | 84.5% |
| Holdings | 1252 | 114 |
IWC in plain words
IWC is an index equity fund tracking the Russell Microcap. Over the year to Sep 11, 2026 it returned +31.3% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. By its holdings filed for Sep 10, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1252 positions, with the top ten at 5.1%. It sat 5.0% below its high of Aug 14, 2026 on Sep 11, 2026.
VOX in plain words
VOX is an index equity fund tracking the Communication Services. Over the year to Sep 11, 2026 it returned +2.9% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.09% a year. By its holdings filed for May 31, 2026, 84% of the fund by weight is stocks the S&P 500 also holds, across 114 positions, with the top ten at 72.1%. It sat 4.3% below its high of Jan 29, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, IWC or VOX?
- In the year to Sep 13, 2026, with distributions reinvested, IWC returned +31.3% and VOX returned +2.9%, so IWC returned more. One year is one year; the longer windows are in the table.
- How much do IWC and VOX overlap with the S&P 500?
- By their latest filed holdings, 92% of IWC and 84% of VOX by weight is stocks the S&P 500 already holds. Between the two funds, 0% of their books are the same securities at the same weight.
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Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, IWC against VOX, data as of Sep 13, 2026. https://etfiq.com/compare/any/iwc-vs-vox Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources