Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
IWC vs JAAA: how they differ
IWC and JAAA hold 0% of their weight in the same names, and IWC returned more over the year.
iShares Micro-Cap ETF and Janus Henderson AAA CLO ETF.
What they hold in common
By the books each fund has filed, IWC and JAAA hold 0% of their money in the same securities at the same weight.
| Only in IWC | Only in JAAA |
|---|---|
| CAREDX 0.61% | KKR CLO 35 Ltd. 0.96% |
| SELLAS LIFE SCIENCES GROUP INC 0.60% | AB BSL CLO 1 Ltd. 0.88% |
| NURIX THERAPEUTICS 0.59% | Anchorage Capital CLO 16 Ltd. 0.82% |
| PENGUIN SOLUTIONS INC 0.58% | Anchorage Capital CLO 17 Ltd. 0.80% |
| OUSTER 0.52% | Carlyle US CLO Ltd. 0.70% |
| VIRIDIAN THERAPEUTICS ORS 0.48% | Carlyle US CLO Ltd. 0.67% |
| INTERFACE 0.47% | Regatta XIX Funding Ltd. 0.67% |
| MBX BIOSCIENCES 0.45% | Magnetite XXXII Ltd. 0.67% |
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 Apr 30, 2026 and Sep 10, 2026.
| IWC iShares Micro-Cap ETF | JAAA Janus Henderson AAA CLO ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Janus Henderson |
| What it is | Russell Microcap | Henderson AAA CLO |
| Total return, 1 year | +31.3% | +4.9% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +13.8 pts | −12.6 pts |
| Expense ratio | not published | 0.20% |
| Already in the S&P 500 | 91.9% | 0.0% |
| Holdings | 1252 | 600 |
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.
JAAA in plain words
JAAA is an index equity fund tracking the Henderson AAA CLO. Over the year to Sep 11, 2026 it returned +4.9% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.20% a year. By its holdings filed for Apr 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 600 positions, with the top ten at 7.5%.
Questions people ask
- Which returned more over the last year, IWC or JAAA?
- In the year to Sep 13, 2026, with distributions reinvested, IWC returned +31.3% and JAAA returned +4.9%, so IWC returned more. One year is one year; the longer windows are in the table.
- How much do IWC and JAAA overlap with the S&P 500?
- By their latest filed holdings, 92% of IWC and 0% of JAAA 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.
Other comparisons
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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 JAAA, data as of Sep 13, 2026. https://etfiq.com/compare/any/iwc-vs-jaaa Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources