Which stocks do SPYM and SSO both hold?

493 stocks are in both. The biggest shared positions: NVDA (7.5% of SPYM, 5.2% of SSO), AAPL (6.6% of SPYM, 4.6% of SSO), MSFT (4.3% of SPYM, 3.4% of SSO), AMZN (3.6% of SPYM, 2.7% of SSO), GOOGL (3.2% of SPYM, 2.2% of SSO).

SPYMvsSSO

State Street SPDR Portfolio S&P 500 ETF or ProShares Ultra S&P500 ETF, side by side from their own SEC filings. 65% of their stock holdings are the same at the same weight, across 493 stocks in both. Over the last twelve months SPYM returned +22.3% and SSO +56.8%.

65%of the two portfolios is the same stocks at the same weight

SPYM99% in stocks the other holds too

SSO65% in stocks the other holds too

stocks in bothstocks only in that fundbonds, cash and unmatched shares

The two funds

From each fund's latest N-PORT filing and its prospectus.

SPYMSSOYearly cost0.02%n/aNet assets$153.9B$8.4BPositions511525Last 12 months+22.3%+56.8%3 years, a year+20.6%+40.1%5 years, a year+13.4%+20.1%Largest holdingNVDA 7.5%ProShares 15.5%Main sectorTechnology 38%Technology 25%Holdings as ofJun 30, 2026May 31, 2026

Returns are total returns with dividends reinvested, from the funds’ own monthly figures; “(price)” marks a fund whose filing record is younger than a year, whose twelve months are its price change. The stronger figure in each row is set in bold. Past returns say what happened, not what will.

Growth of $100

Both funds from September 2019, the first month both report, dividends reinvested.

SPYM$287SSO$462

September 2019May 2026

What they both hold

493 stocks are in both funds: 99% of SPYM and 65% of SSO. The biggest shared positions:

Stockin SPYMin SSO

NVDANVIDIA Corporation7.5%5.2%AAPLApple Inc.6.6%4.6%MSFTMicrosoft Corporation4.3%3.4%AMZNAmazon3.6%2.7%GOOGLAlphabet Inc.3.2%2.2%AVGOBroadcom2.8%2.1%GOOGAlphabet Inc. (Class C)2.6%1.8%METAMeta Platforms1.9%1.4%TSLATesla, Inc.1.8%1.2%MUMicron Technology2.0%1.1%

Only in SPYM

Its biggest stocks the other fund does not hold.

Only in SSO

Its biggest stocks the other fund does not hold.

More comparisons

IVV vs SPYM SPYM vs VOO SPYI vs SPYM SPYM vs VV BBUS vs SPYM SCHB vs SSO SSO vs VOO SPYI vs SSO

From each fund’s Form N-PORT (SPYM: June 2026, SSO: May 2026) and prospectus, via the SEC’s public data sets. Overlap counts only the stocks we can match to a listing: stock by stock, the smaller of the two weights, added up.