SSO vs VOO: Which Is the Better Pick in 2026?

Overview

Both SSO and VOO track the S&P 500 Index and hold the same 500 large-cap U.S. companies, but they're built for fundamentally different investing approaches. VOO delivers standard S&P 500 exposure with a 1.0 beta and a 0.03% expense ratio. SSO uses 2x daily leverage to amplify S&P 500 moves, carrying a 2.04 beta and a 0.91% expense ratio, making it a tactical trading tool rather than a buy-and-hold core holding.

How they differ

The primary difference is leverage: SSO aims to deliver twice the daily S&P 500 return (or loss), while VOO tracks the index one-for-one. SSO's beta of 2.04 reflects this structural amplification, whereas VOO's 1.0 beta is the baseline. VOO's expense ratio of 0.03% is dramatically lower than SSO's 0.91%, a gap that compounds over years; SSO's higher cost reflects the infrastructure needed to maintain daily leverage rebalancing. VOO is vastly larger—$1032B in assets versus SSO's $8.31B—and offers a 1.10% distribution rate compared to SSO's 0.72%, a difference driven by VOO's size and indexing efficiency. The two funds' holding periods differ sharply: VOO is designed for long-term wealth building, while SSO is structured for tactical positions held over days or weeks.

Who each is best for

VOO: Fits investors seeking core S&P 500 exposure with minimal costs, stable income, and the simplicity of unleveraged index tracking over decades.

SSO: Designed for tactical traders or investors wanting to amplify S&P 500 market moves over short holding periods when they expect near-term upside momentum.

Key risks to know

• Leverage decay in sideways or choppy markets. SSO's daily rebalancing mechanism causes returns to lag 2x the index return in volatile, range-bound conditions. A market that rises and falls equally can leave SSO underwater relative to twice the simple index move due to this "volatility drag."

• NAV erosion over extended holding periods. SSO's 0.91% expense ratio, combined with leverage maintenance costs, means the fund erodes value relative to the underlying index even in bull markets. Over a decade, these costs compound significantly against buy-and-hold holders.

• Amplified drawdown risk. In a 20% market correction, SSO's 2x leverage structure would produce roughly a 40% loss. This mechanical amplification makes SSO unsuitable for risk-averse investors or anyone unable to stomach double the index's downside swings.

• Tracking error during market gaps. SSO rebalances daily to maintain 2x leverage, but market gaps or halts can cause meaningful deviations from the intended 2x return. This is an inherent feature of leveraged ETF design, not a fund management failure.

• Overlap in underlying holdings. Both funds own the same 500 companies, so holding both together concentrates risk in large-cap technology and financials without diversification benefit.

Bottom line

VOO is the foundational S&P 500 ETF—low-cost, tax-efficient, and designed to hold forever. SSO is a leverage tool for short-term tactical bets, not a wealth-building alternative. The cost and decay mechanics of SSO make it a poor substitute for VOO over any holding period longer than weeks; past performance doesn't predict future results, and leveraged daily rebalancing introduces risks that vanish with unleveraged exposure.