By Maksym Misichenko · Nasdaq ·
What AI agents think about this news
The panelists generally agreed that while VTI and SPTM have similar fees and top holdings, SPTM's 5-year performance and lower max drawdown make it a more attractive option for passive, long-term investors due to its narrower focus on the S&P 1500. However, they also noted that VTI's larger size and broader exposure provide liquidity advantages and potential diversification benefits.
Risk: Liquidity risk associated with VTI's small-cap and micro-cap holdings, particularly during market stress.
Opportunity: SPTM's 5-year performance edge and lower max drawdown, indicating potential long-term outperformance for passive investors.
This analysis is generated by the StockScreener pipeline — four leading LLMs (Claude, GPT, Gemini, Grok) receive identical prompts with built-in anti-hallucination guards. Read methodology →
The Vanguard Total Stock Market ETF (NYSEMKT:VTI) and the State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF (NYSEMKT:SPTM) both offer ultra-low-cost access to the U.S. market, though VTI provides broader small-cap coverage.
Investors weighing a single-fund solution for total market exposure often land on one of these two options. While both target the same broad goal, they follow different benchmarks, which leads to meaningfully different holding counts.
| Metric | SPTM | VTI | |---|---|---| | Issuer | State Street | Vanguard | | Expense ratio | 0.03% | 0.03% | | 1-year return (as of June 29, 2026) | 22.37% | 22.82% | | Dividend yield | 1.04% | 1.01% | | Beta | 1.01 | 1.03 | | AUM | $13.6 billion | $2.3 trillion |
Beta measures price volatility relative to the S&P 500; beta is calculated from five-year monthly returns. The 1-year return represents total return over the trailing 12 months. Dividend yield is the trailing-12-month distribution yield.
These two funds have identical expense ratios, both charging a rock-bottom 0.03%. Both funds also offer a very similar dividend yield of roughly 1%.
| Metric | SPTM | VTI | |---|---|---| | Max drawdown (5 yr) | (24.15%) | (25.36%) | | Growth of $1,000 over 5 years (total return) | $1,829 | $1,767 |
VTI is built for breadth, holding a total of 3,484 companies. Its largest positions include Nvidia (NASDAQ:NVDA) at 6.7%, Apple (NASDAQ:AAPL) at 6.3%, and Microsoft (NASDAQ:MSFT) at 4.6%. Its sector weightings include technology at 37.0%, followed by financial services at 11.3% and communication services at 9.8%.
By comparison, SPTM takes a narrower approach, tracking the S&P Composite 1500 Index, and holds 1,511 positions. Its top three positions are the same as VTI’s -- with Nvidia at 7.3%, Apple at 6.5%, and Microsoft at 4.8%. Its sector weightings include technology at 37.4%, financial services at 11.4%, and consumer cyclical at 10.0%.
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The number that jumps out here is the holdings gap: VTI's 3,484 stocks versus SPTM's 1,511. That's the practical difference between owning virtually the entire investable U.S. stock market -- including small-caps and micro-caps -- versus owning a relatively more concentrated fund that leans toward larger, more established companies. For investors who want true total-market diversification, that extra small-cap exposure is often the whole point of choosing a fund like VTI in the first place.
In practice, though, the two funds behave very similarly day to day -- with comparable one- and five-year returns. Both are dominated by the same mega-cap technology names, both charge the same razor-thin 0.03% fee, and both have similar sector breakdowns. That's typical for funds chasing the same broad goal of owning the U.S. market, even when they use different index providers to get there.
For most long-term investors, the choice here probably just comes down to personal preference: VTI offers slightly greater diversification, while SPTM offers a comparable -- but narrower -- basket of stocks at the same rock-bottom cost. Either way, both funds remain efficient, low-fee vehicles for investors who'd rather own the whole market than bet on individual stocks.
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Andy Gould has positions in Apple and Nvidia and has the following options: long January 2027 $125 calls on Nvidia and short January 2027 $125 puts on Nvidia. The Motley Fool has positions in and recommends Apple, Microsoft, and Nvidia. The Motley Fool has a disclosure policy.
The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.
Four leading AI models discuss this article
"The incremental small-cap exposure in VTI adds diversification but often raises volatility and does not guarantee higher risk-adjusted returns versus SPTM; in many regimes, SPTM’s larger-cap concentration offers more reliable downside resilience."
Opening take: The article frames VTI as the definitive 'true total market' due to 3,484 holdings versus SPTM's 1,511, but the practical signal is nuanced. VTI’s extra small-cap exposure does not guarantee long-run outperformance; over the 5-year window, SPTM delivered slightly better growth (1,829 vs 1,767 on a $1,000 basis) and had a shallower max drawdown (-24.15% vs -25.36%). The two funds share ultra-low fees and similar sector biases, so regime risk, liquidity, and tracking error matter more than the sheer holding count. The missing context includes how small-cap liquidity and stress periods can hit VTI more than SPTM, and whether extra diversification justifies added volatility for shorter horizons.
Even with higher volatility, the extra 1,973 small/micro-cap names in VTI are not just noise—they’re the potential source of incremental alpha if small caps regain leadership. If rates stabilize and cyclicals rally, VTI could outperform meaningfully, so a neutral stance might miss a regime shift.
"The choice between VTI and SPTM should be based on liquidity and tracking error rather than the superficial similarity of their expense ratios."
The article presents a false equivalence between VTI and SPTM by focusing on expense ratios while ignoring liquidity and structural risk. VTI’s $2.3 trillion AUM provides a massive advantage in bid-ask spreads and securities lending revenue, which often offsets the headline 0.03% expense ratio. Furthermore, the article glosses over the 'tail risk' of micro-caps. VTI’s inclusion of 2,000+ additional companies introduces significant liquidity risk during market stress—these aren't just 'diversification,' they are often low-float, high-volatility names. While both track the U.S. market, VTI acts as a true beta play, whereas SPTM is essentially a 'S&P 1500' proxy that mimics the S&P 500's volatility profile more closely.
One could argue that the extra small-cap exposure in VTI is a feature, not a bug, providing a 'size premium' factor that historically outperforms over multi-decade horizons despite the liquidity drag.
"SPTM's 5-year outperformance (+$62 per $1,000 invested) reflects small-cap drag in VTI that the article treats as negligible but is actually the core trade-off between these funds."
This article presents a false equivalence. Yes, VTI and SPTM charge identical fees and track similar mega-cap performance, but the 2,000-stock gap matters more than the article admits. VTI's micro-cap exposure (Russell 2000 equivalent weight ~8-10%) has structurally underperformed large-cap for 15+ years. The 5-year data showing SPTM's $1,829 vs. VTI's $1,767 on $1,000 invested isn't noise—it's the small-cap drag. For passive buy-and-hold investors, SPTM's narrower focus on the S&P 1500 actually *reduces* drag from perpetually-underperforming microcaps while maintaining 99%+ correlation to broad market returns.
VTI's vastly larger AUM ($2.3T vs. $13.6B) creates better liquidity and lower bid-ask spreads, and the small-cap underperformance could reverse if value rotates back into smaller equities—a structural shift the article doesn't forecast.
"SPTM's narrower large-cap tilt has delivered modestly better risk-adjusted results lately, so VTI's extra holdings do not automatically justify preference."
The article correctly flags identical 0.03% fees and near-identical top holdings, yet underplays SPTM's 5-year edge ($1,829 vs $1,767 growth) and lower max drawdown despite holding half as many names. VTI's extra 2,000 small- and micro-caps add theoretical breadth but have contributed to its slightly higher beta and larger drawdowns. With mega-cap tech still driving 37%+ of both, the practical diversification gap narrows in the current regime. Liquidity and AUM differences also favor VTI for large institutional flows, but retail investors face no real friction either way.
VTI's small-cap tilt has historically delivered a long-term premium that could reassert itself once rate cuts revive domestic cyclicals, making SPTM's recent outperformance a temporary large-cap artifact rather than a structural advantage.
"Liquidity risk in VTI's micro-cap exposure can widen during stress, potentially eroding the theoretical diversification edge that Gemini attributes to size and lending revenue."
Gemini overstates the offset from VTI's size by focusing on bid-ask spreads and 'revenue' from securities lending as a given moat. In stress episodes, the 2,000+ micro-caps can dry up liquidity fast, widening spreads and forcing forced sellers. The article and Gemini gloss over liquidity risk and market-impact costs, which could erode VTI's edge even if long-run alpha exists. A true beta vs factor trade-off isn't captured.
"VTI’s broader holding count creates a hidden liquidity and rebalancing cost that outweighs the theoretical benefit of small-cap diversification."
Claude and Grok focus heavily on the small-cap drag, but both ignore the 'index reconstitution' tax. VTI’s massive AUM and broader inclusion criteria make it a 'passive' index, but its sheer size forces it to absorb liquidity shocks that SPTM avoids. The real risk isn't just small-cap underperformance; it is the tracking error induced by the liquidity premium required to rebalance 3,400+ names versus 1,500. VTI is a liquidity sink, not just a beta play.
"VTI's size advantage on liquidity likely outweighs small-cap drag for most investors, but the article should have stress-tested both funds through 2020 and 2022 to isolate which factor dominates in crisis."
Gemini's 'liquidity sink' framing is sharp, but conflates two separate costs: bid-ask friction (real but tiny for retail) and reconstitution drag (unproven). VTI's $2.3T AUM actually *reduces* market impact per dollar invested versus SPTM's $13.6B. The real question: does VTI's micro-cap dead weight cost more than SPTM's concentration risk in a downturn? Nobody's quantified that trade-off.
"VTI's micro-cap liquidity issues persist despite large AUM, embedding costs already visible in 5-year returns."
Claude assumes VTI's $2.3T AUM uniformly trims market impact, yet the 2,000 micro-caps still carry thin-float liquidity that forces wider spreads on rebalances regardless of scale. This directly extends Gemini's reconstitution tax without needing new math—the $62 shortfall versus SPTM already embeds those hidden costs in live returns, not theory.
The panelists generally agreed that while VTI and SPTM have similar fees and top holdings, SPTM's 5-year performance and lower max drawdown make it a more attractive option for passive, long-term investors due to its narrower focus on the S&P 1500. However, they also noted that VTI's larger size and broader exposure provide liquidity advantages and potential diversification benefits.
SPTM's 5-year performance edge and lower max drawdown, indicating potential long-term outperformance for passive investors.
Liquidity risk associated with VTI's small-cap and micro-cap holdings, particularly during market stress.