SPLG vs VOO
SPDR(R) Portfolio S&P 500 ETF vs Vanguard S&P 500 ETF
Which is better, SPLG or VOO?
VOO has been ahead.
SPLG has a lower expense ratio. VOO led over the full window. The two have moved almost in lockstep, correlation 0.93. SPLG is less concentrated, with 36.5% of the fund in its ten largest positions against 37.6%.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | SPLG | VOO |
|---|---|---|
| Expense Ratio | 0.02%Best | 0.03% |
| AUM | - | $997.4B |
| Dividend Yield | - | 1.04% |
| Holdings | 506 | 509 |
| Volatility (annualized) | 14.5% | 14.2%Best |
| Max Drawdown | -33.9%Best | -34.3% |
| $10,000 over 15.1 years | $61,394 | $65,810Best |
| Top 10 Weight | 36.5%Best | 37.6% |
| Fund Family | - | Vanguard (US) |
| Category | - | Equity |
| Style | - | Large Cap Blend |
| Inception | - | Sep 7, 2010 |
Not shown on this pair: YTD Return, 1Y Return, 3Y Return (annualized), 5Y Return (annualized).
The two price series end 322 days apart, so a return over any period would be measuring two different stretches of market. Those rows are withheld. SPLG has data through Oct 30, 2025 and VOO through Sep 17, 2026.
Volatility and max drawdown, and the $10,000 over 15.1 years row, are measured over the window both funds cover: Sep 9, 2010 to Oct 30, 2025 (15.1 years).
Risk: Volatility and Drawdowns
SPLG has been the more volatile fund, with annualized monthly volatility of 14.5% compared with 14.2% for VOO. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.
The deepest peak-to-trough decline in our data was -33.9% for SPLG and -34.3% for VOO. Drawdown depth is what each fund did in the worst stretch of the window measured above.
The two funds' monthly returns correlate at 0.93. They move almost in lockstep, so holding both mostly duplicates the same exposure.
Fees and Cost Over Time
SPLG charges 0.02% per year while VOO charges 0.03%. On a $10,000 position that is $2 vs $3 annually, a gap of $1 per year that compounds over a long holding period.
Holdings Overlap
97.8% of SPLG's money is in holdings VOO also owns. 96.4% of VOO's money is in holdings SPLG also owns.
Most of SPLG is already inside VOO. Owning both mostly buys the same companies twice.
The two holdings books were reported 396 days apart, SPLG as of Jun 30, 2025 and VOO as of Jul 31, 2026, so some of the difference between them is the time between the two reports rather than the funds.
461 positions in common, counted across the 506 positions we hold weights for in SPLG and 494 in VOO, against full books of 506 and 509.
What only one of them owns
Our book lists 23 positions for VOO that do not appear in our book for SPLG (2.3% of the fund), and 41 for SPLG that do not appear in VOO (1.9%).
Some of those will be the same company recorded under a different code in one of the two books, so the real difference in what you would own is no larger than this and may be smaller. We do not name the individual positions here for that reason.
Top Shared Holdings
| Stock | Weight in SPLG | Weight in VOO | Difference |
|---|---|---|---|
| NVDANvidia Corp | 7.33% | 7.55% | 0.22% |
| AAPLApple, Inc | 5.83% | 7.05% | 1.22% |
| MSFTMicrosoft Corp | 7.03% | 5.36% | 1.67% |
| AMZNAmazon.Com Inc | 3.94% | 4.13% | 0.19% |
| AVGOBroadcom Inc | 2.46% | 2.86% | 0.40% |
| GOOGLAlphabet Inc,class A | 1.95% | 3.24% | 1.29% |
| METAMeta Platforms Inc | 3.05% | 1.90% | 1.15% |
| GOOGAlphabet Inc | 1.58% | 2.62% | 1.04% |
| BRK.BBerkshire Hathaway Inc Brk/B Us Equity | 1.69% | 1.46% | 0.23% |
| TSLATesla Inc | 1.69% | 1.36% | 0.33% |
97.8% of SPLG is already inside VOO.
You probably hold more than these two. Add the rest and see how much of the whole book is the same companies twice.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, SPLG or VOO?
SPLG has an expense ratio of 0.02% while VOO charges 0.03%. SPLG is the cheaper option, by $1 a year on a $10,000 investment.
Which is riskier, SPLG or VOO?
SPLG has been the more volatile fund at 14.5% annualized versus 14.2% for VOO. Worst drawdown: SPLG -33.9% vs VOO -34.3%.
Should I hold both SPLG and VOO?
SPLG and VOO have a monthly-return correlation of 0.93, so they move almost identically. What is left to separate them is the fee and the index each one tracks. This is information, not a recommendation.
What is the holdings overlap between SPLG and VOO?
97.8% of SPLG's money is in holdings VOO also owns. 96.4% of VOO's is in holdings SPLG also owns. They hold 461 positions in common, counted across the 506 positions we hold weights for in SPLG and 494 in VOO.
Is VOO better than SPLG?
SPLG has a lower expense ratio. VOO led over the full window. The two have moved almost in lockstep, correlation 0.93. SPLG is less concentrated, with 36.5% of the fund in its ten largest positions against 37.6%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.