ETF Copilot

SPYM vs VOO: holdings overlap, shared companies and scores

As of October 9, 2026, SPYM and VOO overlap 96.3% by weight. State Street SPDR Portfolio S&P 500 ETF (SPYM): S&P 500 index. Vanguard S&P 500 ETF (VOO): S&P 500 index.

Updated October 9, 2026

Where SPYM and VOO trade against their own history

SPYM trades at 24.7 times earnings, against its own median of 23.4, and is more expensive than 60% of its own 109 monthly readings since 2017.

VOO trades at 24.2 times earnings, against its own median of 22.6, and is more expensive than 60% of its own 115 monthly readings since 2017.

What moved SPYM and VOO this week

SPYM rose 1.1% in the week to October 9, 2026. The holdings that moved it most were Microsoft (+3.4%), Amazon.com (+4.3%) and Palantir Technologies (+10.8%); Nvidia (−2.0%) pushed the other way.

VOO rose 1.1% in the week to October 9, 2026. The holdings that moved it most were Microsoft (+3.4%), Amazon.com (+4.3%) and Alphabet (+2.4%); Nvidia (−2.0%) pushed the other way.

What do SPYM and VOO each hold?

What's inside SPYM: Tech 45%, Magnificent 7 35%.

39% of SPYM is its ten largest holdings.

What's inside VOO: Tech 44%, Magnificent 7 34%.

38% of VOO is its ten largest holdings.

How much do SPYM and VOO overlap? 96.3% by weight

As of October 9, 2026, SPYM and VOO overlap 96.3% by weight.

100% of SPYM is already inside VOO.

100% of VOO is already inside SPYM.

SPYM holds 506 companies and VOO holds 504; 498 are in both.

Computed by ETF Copilot from both funds' holdings rather than quoted from a data provider, and rebuilt nightly.

How does ETF Copilot score SPYM and VOO? 7.1 and 7.0 out of 10

As of October 9, 2026, ETF Copilot scores SPYM 7.1 out of 10 and VOO 7.0 out of 10.

They differ most on Growth: SPYM 7.6 and VOO 7.2.

The five factor scores behind them are set out below, 0–10 and higher is better, ranked against every US equity ETF we track.

SPYM vs VOO — ETF Copilot factor scores, 0–10
FactorSPYMVOO
Growth7.67.2
Value3.53.8
Risk6.86.8
Quality8.78.6
Return8.28.1

SPYM is the cheaper of the two at 0.02% a year

As of October 9, 2026, SPYM charges 0.02% a year, yields 1.00% and holds $178.5B in assets across 506 positions.

As of October 9, 2026, VOO charges 0.03% a year, yields 1.04% and holds $1.8T in assets across 504 positions.

SPYM vs VOO — cost, income and size
MeasureSPYMVOO
Expense ratio0.02%0.03%
Dividend yield1.00%1.04%
Assets under management$178.5B$1.8T
Holdings506504

Expense ratio, dividend yield and assets under management are reported by the fund and refreshed daily. Every other figure on this page is computed by ETF Copilot.

Compare with similar funds

Cite this

ETF Copilot, “SPYM vs VOO holdings overlap and scores”, as of October 9, 2026.
https://etf-copilot.com/compare/spym-vs-voo

  1. State Street SPDR Portfolio S&P 500 ETF (SPYM)
  2. Vanguard S&P 500 ETF (VOO)

ETF Copilot Pro unlocks SPYM vs VOO prices and holdings.

Try Pro free →