Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IEMG vs XBI: how they differ
IEMG and XBI hold 0% of their weight in the same names, and XBI returned more over the year.
iShares Core MSCI Emerging Markets ETF and State Street(R) SPDR(R) S&P(R) Biotech ETF.
What they hold in common
By the books each fund has filed, IEMG and XBI hold 0% of their money in the same securities at the same weight.
| Only in IEMG | Only in XBI |
|---|---|
| Taiwan Semiconductor Manufacturing Compa 12.52% | Apogee Therapeutics Inc 1.49% |
| SK hynix Inc. 5.83% | Moderna Inc 1.41% |
| Tencent Holdings Limited 2.38% | Twist Bioscience Corp 1.41% |
| Alibaba Group Holding Limited 1.83% | Oruka Therapeutics Inc 1.38% |
| MediaTek Inc. 1.42% | Kymera Therapeutics Inc 1.36% |
| DELTA ELECTRONICS, INC. 1.03% | Viking Therapeutics Inc 1.31% |
| HON HAI PRECISION INDUSTRY CO., LTD. 0.79% | Praxis Precision Medicines Inc 1.29% |
| Samsung Electronics Co., Ltd. 0.74% | Erasca Inc 1.27% |
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 Jun 30, 2026 and May 31, 2026.
| IEMG iShares Core MSCI Emerging Markets ETF | XBI State Street(R) SPDR(R) S&P(R) Biotech ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | State Street |
| What it is | Core MSCI Emerging Markets | SPDR S&P Biotech |
| Total return, 1 year | +30.6% | +64.0% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +13.1 pts | +46.5 pts |
| Expense ratio | 0.09% | 0.35% |
| Already in the S&P 500 | 0.0% | 8.5% |
| Holdings | 2695 | 150 |
IEMG in plain words
IEMG is an index equity fund tracking the Core MSCI Emerging Markets. Over the year to Sep 11, 2026 it returned +30.6% 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, 0% of the fund by weight is stocks the S&P 500 also holds, across 2695 positions, with the top ten at 34.1%. It sat 4.0% below its high of Jun 22, 2026 on Sep 11, 2026.
XBI in plain words
XBI is an index equity fund tracking the SPDR S&P Biotech. Over the year to Sep 11, 2026 it returned +64.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.35% a year. By its holdings filed for Jun 30, 2026, 8% of the fund by weight is stocks the S&P 500 also holds, across 150 positions, with the top ten at 13.3%. It sat 9.6% below its high of Feb 8, 2021 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, IEMG or XBI?
- In the year to Sep 12, 2026, with distributions reinvested, IEMG returned +30.6% and XBI returned +64.0%, so XBI returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IEMG or XBI?
- IEMG charges 0.09% a year and XBI charges 0.35%, so IEMG is cheaper. Fees come from each fund's prospectus.
- How much do IEMG and XBI overlap with the S&P 500?
- By their latest filed holdings, 0% of IEMG and 8% of XBI 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, IEMG against XBI, data as of Sep 12, 2026. https://etfiq.com/compare/any/IEMG-XBI Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources