In early June 2026, VOO officially crossed $1 trillion in assets under management — a milestone no ETF in history had previously reached. The fund attracted $69 billion in net new inflows in the first half of 2026 alone, including at least one session where a single trading day brought in $1.7 billion in new capital. To put that scale in context: VOO now manages more assets in its ETF share class than the GDP of most developed economies, and the combined assets of the Vanguard Total Stock Market Index Fund across all share classes — which includes VTSAX and VTI — exceed $2 trillion. The $1 trillion milestone is not merely symbolic. At that scale, VOO’s inflows are large enough to have a measurable effect on the market prices of S&P 500 constituents, particularly smaller index members where a single large rebalance trade can represent a meaningful fraction of daily volume. Nearly every major performance page currently ranking for “voo performance” makes no mention of this, despite it being the most significant event in the fund’s history.

The single most powerful number in VOO’s performance record is not its best year or its 10-year average. It is the floor: the worst annualized return across any consecutive 10-year period in VOO’s history since its 2010 launch is +11.14% per year. That means an investor who bought at the absolute worst possible time in VOO’s history and held for exactly 10 years still earned 11.14% annually, compounding their money to approximately 2.88 times the original investment. The worst 5-year rolling return is +6.71% per year, and the worst 3-year rolling return is +5.09% per year. These numbers directly address the most common investor anxiety — “what if I buy right before a crash?” — with actual historical data rather than theory. The answer from VOO’s own track record is that even worst-case long-term outcomes have been meaningfully positive. This data is available on MyPlanIQ and PortfoliosLab but is not presented prominently on the Vanguard official page or any of the other top-ranking results for this keyword.

VOO and SPY both track the S&P 500 Index and hold the same 500 stocks. Many investors assume their long-term returns are therefore identical. They are not — VOO has consistently generated slightly higher total returns than SPY over comparable holding periods, for two compounding reasons. First, VOO charges 0.03% per year versus SPY’s 0.09%, a difference of six basis points that accumulates meaningfully over decades. Second, and less widely understood, is the dividend handling structure. SPY was originally structured as a Unit Investment Trust, which legally required it to hold dividend cash in a non-interest-bearing account until quarterly distribution — a cash drag that reduced compounding during periods when dividends sat idle. VOO, structured as an open-end fund from launch, reinvests dividends immediately back into the portfolio. SPY completed its own conversion to an open-end structure in late 2025, which closed this particular gap. However, the multi-decade performance record reflecting that historical structural difference remains embedded in the return comparison. For investors choosing between the two funds going forward, the 0.06% annual expense ratio difference remains the primary quantifiable advantage VOO holds over SPY.

VOO launched on September 7, 2010 — 18 months after the March 2009 market bottom, and well into one of the longest bull markets in U.S. history. Every single “since inception” return figure quoted for VOO begins from a post-financial-crisis base, meaning the fund has never had its full return record tested against a major bear market that started before the fund existed. Its worst full calendar year was 2022 at −18.17%, and its maximum drawdown since inception was −33.99% during the COVID crash in February and March of 2020 — a decline that recovered in roughly 5 months, making it one of the sharpest and fastest recovery cycles in S&P 500 history. For context, a simulated 30-year return series that incorporates pre-launch S&P 500 history — including the dot-com crash of 2000–2002 and the 2008 financial crisis — shows a maximum drawdown of −50.80% requiring 53 months to fully recover. VOO investors who have only owned the fund since launch have never experienced anything close to that. This does not mean it cannot happen — it means VOO’s impressive live track record reflects favorable starting conditions that any investor should factor into their long-term expectations.