FILL vs VOO
iShares MSCI Global Energy Producers ETF vs Vanguard S&P 500 ETF
Which is better, FILL or VOO?
VOO has been ahead.
VOO led over the full window. VOO is less concentrated, with 36.4% of the fund in its ten largest positions against 61.0%.
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 | FILL | VOO |
|---|---|---|
| Expense Ratio | - | 0.03% |
| AUM | - | $997.4B |
| Dividend Yield | - | 1.08% |
| Holdings | 185 | 509 |
| Volatility (annualized) | 35.9% | 14.1%Best |
| Max Drawdown | -76.3% | -34.3%Best |
| $10,000 over 13.7 years | $16,450 | $55,463Best |
| Top 10 Weight | 61.0% | 36.4%Best |
| 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 311 days apart, so a return over any period would be measuring two different stretches of market. Those rows are withheld. FILL has data through Oct 28, 2025 and VOO through Sep 4, 2026.
Volatility and max drawdown, and the $10,000 over 13.7 years row, are measured over the window both funds cover: Feb 2, 2012 to Oct 28, 2025 (13.7 years).
Risk: Volatility and Drawdowns
FILL has been the more volatile fund, with annualized monthly volatility of 35.9% compared with 14.1% 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 -76.3% for FILL 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 0.39. They move together some of the time, and apart the rest.
Holdings Overlap
47.1% of FILL's money is in holdings VOO also owns. 2.3% of VOO's money is in holdings FILL also owns.
The two portfolios partly overlap.
The two holdings books were reported 303 days apart, FILL as of Aug 31, 2025 and VOO as of Jun 30, 2026, so some of the difference between them is the time between the two reports rather than the funds.
14 positions in common, counted across the 185 positions we hold weights for in FILL and 505 in VOO, against full books of 185 and 509.
What only one of them owns
Our book lists 483 positions for VOO that do not appear in our book for FILL (97.2% of the fund), and 140 for FILL that do not appear in VOO (43.0%).
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 FILL | Weight in VOO | Difference |
|---|---|---|---|
| XOMExxon Mobil Corp. | 18.30% | 0.88% | 17.42% |
| CVXChevron Corp | 11.70% | 0.48% | 11.22% |
| COPConocophillips Common Stock USD 0.01 | 4.64% | 0.20% | 4.44% |
| EOGEog Resources Inc | 2.53% | 0.11% | 2.42% |
| MPCMarathon Petroleum Corp | 2.05% | 0.12% | 1.93% |
| VLOValero Energy | 1.77% | 0.12% | 1.65% |
| OXYOccidental Petroleum Corp. | 1.31% | 0.05% | 1.26% |
| EQTEQT Corp. | 1.14% | 0.05% | 1.09% |
| FANGDiamondback Energy, Inc. | 1.05% | 0.05% | 1.00% |
| DVNDevon Energy Corporation | 0.82% | 0.07% | 0.75% |
47.1% of FILL 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 riskier, FILL or VOO?
FILL has been the more volatile fund at 35.9% annualized versus 14.1% for VOO. Worst drawdown: FILL -76.3% vs VOO -34.3%.
Should I hold both FILL and VOO?
FILL and VOO have a monthly-return correlation of 0.39, so their returns are far enough apart for the mix to behave differently from either one alone. This is information, not a recommendation.
What is the holdings overlap between FILL and VOO?
47.1% of FILL's money is in holdings VOO also owns. 2.3% of VOO's is in holdings FILL also owns. They hold 14 positions in common, counted across the 185 positions we hold weights for in FILL and 505 in VOO.
Is VOO better than FILL?
VOO led over the full window. VOO is less concentrated, with 36.4% of the fund in its ten largest positions against 61.0%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.