Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
IWC vs SHY: how they differ
IWC and SHY hold 0% of their weight in the same names, and IWC returned more over the year.
iShares Micro-Cap ETF and iShares 1-3 Year Treasury Bond ETF.
What they hold in common
By the books each fund has filed, IWC and SHY hold 0% of their money in the same securities at the same weight.
| Only in IWC | Only in SHY |
|---|---|
| CAREDX 0.61% | USD CASH 0.88% |
| SELLAS LIFE SCIENCES GROUP INC 0.60% | TREASURY NOTE (2OLD) 0.80% |
| NURIX THERAPEUTICS 0.59% | TREASURY NOTE (OLD) 0.76% |
| PENGUIN SOLUTIONS INC 0.58% | TREASURY NOTE (OTR) 0.58% |
| OUSTER 0.52% | BLK CSH FND TREASURY SL AGENCY 0.26% |
| VIRIDIAN THERAPEUTICS ORS 0.48% | TREASURY NOTE 0.06% |
| INTERFACE 0.47% | |
| MBX BIOSCIENCES 0.45% |
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 Sep 10, 2026.
| IWC iShares Micro-Cap ETF | SHY iShares 1-3 Year Treasury Bond ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | iShares |
| What it is | Russell Microcap | 1-3 Year Treasury Bond |
| Total return, 1 year | +31.3% | +1.7% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +13.8 pts | −15.8 pts |
| Expense ratio | not published | 0.15% |
| Holdings | 1252 | 93 |
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.
SHY in plain words
SHY is a bond fund tracking the 1-3 Year Treasury Bond. Over the year to Sep 11, 2026 it returned +1.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year.
Questions people ask
- Which returned more over the last year, IWC or SHY?
- In the year to Sep 13, 2026, with distributions reinvested, IWC returned +31.3% and SHY returned +1.7%, 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 SHY, data as of Sep 13, 2026. https://etfiq.com/compare/any/iwc-vs-shy Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources