Compare ETFs
Fees, size, distributions, currency exposure and holdings overlap for two to four funds, side by side.
Side by side
| Measure | IWSiShares Russell Mid-Cap Value ETF | IVViShares Core S&P 500 ETF |
|---|---|---|
| Market | USNYSE Arca | USNYSE Arca |
| Issuer | iShares | iShares |
| Asset class | Equity · US | Equity · US |
| Expense ratio | 0.23%Expense ratio, filed 22 Jul 2025 | 0.03%Expense ratio, filed 22 Jul 2025 |
| Net assets | $15.6BAs of 30 Jun 2026 | $888.1BAs of 30 Jun 2026 |
| Holdings | 724As of 30 Jun 2026 | 508As of 30 Jun 2026 |
| 12-month distribution yield | 1.32% | 1.09% |
| Distributions | Quarterly$2.2060 in 12 months | Quarterly$8.3970 in 12 months |
| Last price | $167.4820 Oct 2026, 20:00 UTC | $772.3520 Oct 2026, 20:00 UTC |
Holdings overlap
Weighted overlap is the sum, over the securities both funds hold, of the smaller of the two weights. 0% means no shared holdings; 100% means identical portfolios.
| Fund | IWS | IVV |
|---|---|---|
| IWS | Same fund | 11.5% |
| IVV | 11.5% | Same fund |
IWS and IVV
- Weighted overlap
- 11.5%
- Holdings in common
- 278
- IWS holdings also in IVV
- 38.6% by count
- IVV holdings also in IWS
- 55.2% by count
| Holding | Weight in IWS | Weight in IVV | Overlap | Matched by |
|---|---|---|---|---|
| ROBINHOOD MARKETS INCROBINHOOD MARKETS INC COM CL A US7707001027 | 0.13% | 0.12% | 0.12% | ISIN |
| ROYAL CARIBBEAN CRUISES LTDROYAL CARIBBEAN CRUISES LTD COM USD0.01 LR0008862868 | 0.34% | 0.12% | 0.12% | ISIN |
| COHERENT CORPCOHERENT CORP COM US19247G1076 | 0.54% | 0.12% | 0.12% | ISIN |
| MARATHON PETROLEUM CORPMARATHON PETROLEUM CORP COM US56585A1025 | 0.36% | 0.12% | 0.12% | ISIN |
| UNITED RENTALS INCUNITED RENTALS INC COM US9113631090 | 0.53% | 0.11% | 0.11% | ISIN |
| PHILLIPS 66PHILLIPS 66 COM US7185461040 | 0.62% | 0.10% | 0.10% | ISIN |
| WARNER BROS. DISCOVERY INCWARNER BROS. DISCOVERY INC COM SER A US9344231041 | 0.63% | 0.10% | 0.10% | ISIN |
| KINDER MORGAN INCKINDER MORGAN INC COM US49456B1017 | 0.61% | 0.10% | 0.10% | ISIN |
| ALLSTATE CORP (THE)ALLSTATE CORP (THE) COM US0200021014 | 0.60% | 0.09% | 0.09% | ISIN |
| DELTA AIR LINES INCDELTA AIR LINES INC COM NEW US2473617023 | 0.56% | 0.09% | 0.09% | ISIN |
How overlap is measured
Each fund's latest public Form N-PORT report lists its positions with the percent of net assets each one makes up. For every security both funds hold, the smaller of its two weights is counted, and those are added up. If fund A holds a stock at 6% and fund B at 4%, that stock adds 4 percentage points.
Securities are matched by ISIN first, then by CUSIP (a US or Canadian ISIN contains the CUSIP), and only as a last resort by issuer name, for non-debt holdings where one fund gives no identifier. Repeated lines of the same security in one fund are added together, and each security is matched once.
Cash funds, repurchase agreements, derivative contracts and short positions are left out because their reported value is not comparable exposure. For funds with more than 2,000 positions only the largest 2,000 are stored, so the result is a lower bound and the possible extra is shown. Reports can be for different month ends, and funds trade between reports.
The count-based shares show how many of one fund's holdings the other also holds, which can be high even when overlap by weight is low. Read more in where the ETF data comes from.
Currency exposure
| Currency | IWS | IVV |
|---|---|---|
| US dollar (USD) | 101.7% | 100.1% |