etf overlap · little overlap

IWM vs SSAC overlap

IWM and SSAC hold no company in common. Still, 73% of their money sits in the same sectors, led by Financials; they part most on Information Technology: 32% of SSAC against 14% of IWM.

Holdings as of September 24, 2026 · source: iShares (IWM), iShares (SSAC) · How we measured all 1,431 pairs

overlapfull holdings, by weight
0.0%of each fund is money the other holds at the same weight, across 0 shared companies.
IWM
100%
SSAC
100%
  • same money
  • same companies, extra weight
  • only in this fund
Overlap = the sum, over companies both funds hold, of the smaller of the two weights. Cash and derivatives excluded.
01Different

What only one of them gives you

only in IWM1,975 names
TWTWSTTWIST BIOSCIENCE0.40%
MOMOG-AMOOG INC CLASS A0.36%
HUHUTHUT CORP0.35%
FRFROGJFROG0.34%
UMUMBFUMB FINANCIAL0.33%
TXTXG10X GENOMICS CLASS A0.33%
VSVSATVIASAT INC0.31%
BTBTSGBRIGHTSPRING HEALTH SERVICES INC0.31%
only in SSAC1,639 names
NVIDIA logoNVDANVIDIA4.95%
APPLE logoAAPLAPPLE4.89%
MICROSOFT logoMSFTMICROSOFT3.64%
AMAZON.COM INC logoAMZNAMAZON.COM INC2.38%
ALPHABET CLASS A logoGOOGLALPHABET CLASS A1.97%
232330TAIWAN SEMICONDUCTOR MANUFACTURING1.86%
META PLATFORMS CLASS A logoMETAMETA PLATFORMS CLASS A1.56%
ALPHABET CLASS C logoGOOGALPHABET CLASS C1.56%
02Sectors

No stock in common, 73% in the same sectors

sectorsIWM vs SSAC, share of each fund
Information Technology13.72%32.04%
Financials19.01%17.74%
Health Care20.35%8.38%
Industrials14.05%9.92%
Consumer Discretionary8.77%8.15%
Energy6.76%4.00%
Communication Services2.45%7.79%
Materials4.21%3.25%
Real Estate5.68%1.41%
Consumer Staples1.95%4.66%
Utilities2.68%2.16%
03Questions

IWM and SSAC: what people ask

questions6 answered

How much do IWM and SSAC overlap?

None by holdings, as of September 24, 2026: no company appears in both funds. By sector, 73% of their money sits in the same sectors, led by Financials.

Which stocks do IWM and SSAC both hold?

None. IWM and SSAC have no holding in common.

Is it redundant to hold both IWM and SSAC?

No. Out of every $100 split evenly between them, none buys the same company. Half in each gives you 3,614 different holdings that behave like 356 equally weighted stocks, against 842 for IWM alone and 99 for SSAC alone. Whether that mix suits you depends on what you want to own; this is a description, not advice.

What is SSAC, next to IWM?

SSAC is iShares MSCI ACWI UCITS ETF (ISIN IE00B6R52259), an Irish-domiciled UCITS fund on the MSCI All Country World (ACWI) index. Next to IWM, it holds no company in common, as of September 24, 2026.

Does the IWM vs SSAC overlap apply to other tickers?

Yes. SSAC also trades as ISAC (London, USD; Borsa Italiana, EUR) and IUSQ (Xetra, EUR). Each is the same portfolio in another currency, on another exchange or paying its dividends out, so IWM and IUSQ share no company either.

How is ETF overlap calculated here?

For every company held by both funds we take the smaller of its two weights and add them up. The weights come from the full holdings files iShares publish, not a top-10 sample, and companies are matched by their ISIN so share classes stay apart. Sector overlap applies the same rule to the issuers' sector labels; "behaves like N equally weighted stocks" is one over the sum of the squared weights.

Hold IWM and SSAC?Import your positions and see what your funds hold together, company by company, with the fees you pay on each.Import my portfolio

Weights come from each issuer's published holdings file and are matched company by company on their ISIN. Cash, futures and currency positions are left out. This page describes what the funds hold; it is not investment advice.