Data as of Oct 28, 2026.
IWC vs SPSB: Differences, Returns & Fees
Over the year to Oct 28, 2026, IWC returned +16.5% to SPSB's +2.2%; 0% of their weight is in the same names.
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Net assets on Oct 27, 2026: $1.2bn for iShares Micro-Cap ETF and $11.3bn for State Street SPDR Portfolio Short Term Corporate Bond ETF.
Pair scorecard
SPSB costs 0.56 points a year less; their one-year returns differ by 14.3 points; SPSB is 9.4 times larger.
| Measure | IWC | SPSB |
|---|---|---|
| Return | ||
| Total return, 1 year | +16.5% | +2.2% |
| Drawdown | ||
| Below its high | 9.5%, high on Aug 14, 2026 | |
| Benchmark | ||
| What it tracks | Russell Microcap Index | Bloomberg U.S. 1-3 Year Corporate Bond Index |
| Cost and size | ||
| Expense ratio | 0.60% | 0.04% |
| Net assets, as of Oct 27, 2026 | $1.2bn | $11.3bn |
| Holdings | ||
| Holdings in common | 0% | |
| In the S&P 500, by weight | 92% | |
| Top ten holdings, share of the fund | 5.9% | |
Holdings in common uses holdings dated Oct 27, 2026. Method
What they share
By the books each fund has filed, IWC and SPSB hold 0% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
0% in common
Only in one fund ↓
Side by side
IWC and SPSB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
Over the year to Oct 28, 2026 it returned +16.5% with distributions reinvested, against +13.3% for its benchmark, the Russell 3000 Index.
IWC tracks the Russell Microcap. The prospectus expense ratio is 0.60% a year. By its holdings published by its issuer for Oct 27, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1,365 positions, with the top ten at 5.9%. It sat 9.5% below its high of Aug 14, 2026 on Oct 28, 2026.
SPSB
SPSB tracks an index of Short Term Corporate Bond. Over the year to Oct 28, 2026 it returned +2.2% with distributions reinvested, against −1.4% for its benchmark, the Bloomberg U.S. Aggregate Bond Index. The prospectus expense ratio is 0.04% a year.
Questions people ask
- Which returned more over the last year, IWC or SPSB?
- In the year to Oct 28, 2026, with distributions reinvested, IWC returned +16.5% and SPSB +2.2%.
- Which is cheaper, IWC or SPSB?
- SPSB is cheaper, by 0.56 percentage points a year. That is about $56 on $10,000 held for a year. Fees come from each fund's prospectus.
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, IWC against SPSB, data as of Oct 28, 2026. https://etfiq.com/compare/any/iwc-vs-spsb
ETFIQ. (Oct 28, 2026). IWC against SPSB. Retrieved from https://etfiq.com/compare/any/iwc-vs-spsb
[IWC against SPSB (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/iwc-vs-spsb)
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