Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IWC vs SPLG: how they differ
IWC and SPLG are both equity index funds, and over the year IWC returned more, +31.3% against +17.6%.
iShares Micro-Cap ETF and S&P 500, book from IVV.
| IWC iShares Micro-Cap ETF | SPLG S&P 500, book from IVV | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | S&P |
| What it is | Russell Microcap | S&P 500, book from IVV |
| Total return, 1 year | +31.3% | +17.6% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +13.8 pts | +0.1 pts |
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. It sat 5.0% below its high of Aug 14, 2026 on Sep 11, 2026.
SPLG in plain words
SPLG is an index equity fund tracking the S&P 500. Over the year to Sep 11, 2026 it returned +17.6% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100.
Questions people ask
- Which returned more over the last year, IWC or SPLG?
- In the year to Sep 12, 2026, with distributions reinvested, IWC returned +31.3% and SPLG returned +17.6%, so IWC returned more. One year is one year; the longer windows are in the table.
Other comparisons
Where to next
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 SPLG, data as of Sep 12, 2026. https://etfiq.com/compare/any/IWC-SPLG Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources