MGC vs VOO Stock Comparison: AI Score, Valuation, Performance and Upside
MGC and VOO both target large-cap blend exposure but take different paths to get there — MGC via the CRSP US Mega Cap Index, and VOO via the S&P 500 Index. The practical differences come down to issuer, cost structure, and the specific index rules each fund follows, since both are pursuing a similar investment outcome.
MGC vs VOO is largely a question of which issuer and index methodology you trust more for large-cap blend exposure — the underlying investment case is similar, so cost, liquidity, and tracking precision tend to be the deciding factors.
VOO holds the edge across 5 of 5 key metrics in this comparison. VOO has delivered stronger 1-year price return (+16.84% vs +16.83% for MGC).
- want concentrated exposure to the biggest US companies only
- prefer Vanguard's approach and fund lineup
- value very low cost mega-cap-only exposure
- are comfortable with lower stock count than SPY means less diversification
- want the standard low-cost core holding for US large-cap exposure
- prefer Vanguard's approach and fund lineup
- value among the lowest expense ratios of any S&P 500 fund
- are comfortable with no protection from broad market or mega-cap-tech drawdowns
| Metric | MGC | VOO |
|---|---|---|
| ETF scorei | 27.1 | 27.1 |
| Latest closei | $281.08 | $701.61 |
| 1M returni | +1.18% | +1.47% |
| 3M returni | +3.32% | +2.96% |
| 6M returni | +8.64% | +8.07% |
| 1Y returni | +16.83% | +16.84% |
The ETF score weights long-term returns and risk-adjusted performance most heavily, but still rewards low expense ratios, larger fund size, and broader diversification — so it can favor low-cost, broad, mega-cap funds over smaller thematic or actively-managed funds even when the latter have delivered stronger returns.
How much would $10,000 be worth today if invested at the start of each period, with all dividends reinvested?
| Period | MGC | VOO |
|---|---|---|
| 1Y ago | $11.77K (+17.7%) started 2025-10-16 | $11.82K (+18.2%) started 2025-10-16 |
| 5Y ago | $20.03K (+100.3%) started 2021-10-18 | $19.68K (+96.8%) started 2021-10-18 |
| 10Y ago | $53.36K (+433.6%) started 2016-10-17 | $50.52K (+405.2%) started 2016-10-17 |
Hypothetical — past performance does not guarantee future results.
| Metric | MGC | VOO |
|---|---|---|
| Expense ratioi | 0.05% | 0.03% |
| Total assets (AUM)i | $11.05B | $1.73T |
| Dividend yieldi | 0.92% | 1.06% |
| Trailing P/Ei | 24.94 | 24.23 |
| Betai | 1.03 | 1.02 |
| 52-week change | 16.83% | 16.84% |
| Metric | MGC | VOO |
|---|---|---|
| 1Y returni | +16.83% | +16.84% |
| 6M returni | +8.64% | +8.07% |
| 3M returni | +3.32% | +2.96% |
| 1M returni | +1.18% | +1.47% |
| 1Y Sharpe ratio | 0.90 | 0.94 |
| Betai | 1.03 | 1.02 |
| Dividend yieldi | 0.92% | 1.06% |
| 5Y CAGR | +13.47% | +12.87% |
Over the past year, MGC and VOO have moved strongly in the same direction (correlation of 0.99), based on daily returns.
Lower drawdown and smaller single-period drops generally indicate a smoother ride, though they do not guarantee lower future risk.
| Period | Metric | MGC | VOO |
|---|---|---|---|
| 1Y | Growthi | +16.83% | +16.84% |
| CAGRi | +16.84% | +16.86% | |
| Volatilityi | 13.41% | 12.65% | |
| Sharpe ratioi | 0.90 | 0.94 | |
| Sortino ratioi | 1.32 | 1.38 | |
| Max drawdowni | 9.85% | 8.90% | |
| Current drawdowni | 2.46% | 2.04% | |
| Avg drawdowni | 1.70% | 1.44% | |
| Ulcer Indexi | 2.46% | 2.14% | |
| Max daily dropi | 2.86% | 2.59% | |
| Max wkly dropi | 4.18% | 3.79% | |
| 5Y | Growthi | +87.98% | +83.03% |
| CAGRi | +13.47% | +12.87% | |
| Volatilityi | 17.40% | 16.89% | |
| Sharpe ratioi | 0.56 | 0.54 | |
| Sortino ratioi | 0.80 | 0.77 | |
| Max drawdowni | 25.74% | 24.52% | |
| Current drawdowni | 2.46% | 2.04% | |
| Avg drawdowni | 6.00% | 5.56% | |
| Ulcer Indexi | 9.12% | 8.45% | |
| Max daily dropi | 5.99% | 5.80% | |
| Max wkly dropi | 11.40% | 11.45% | |
| 10Y | Growthi | +352.04% | +323.54% |
| CAGRi | +16.29% | +15.54% | |
| Volatilityi | 18.26% | 18.01% | |
| Sharpe ratioi | 0.67 | 0.64 | |
| Sortino ratioi | 0.94 | 0.90 | |
| Max drawdowni | 33.07% | 33.99% | |
| Current drawdowni | 2.46% | 2.04% | |
| Avg drawdowni | 4.48% | 4.30% | |
| Ulcer Indexi | 7.50% | 7.16% | |
| Max daily dropi | 11.62% | 11.74% | |
| Max wkly dropi | 17.70% | 18.11% |
| Category | MGC | VOO |
|---|---|---|
| Fund name | Vanguard Morningstar Mega Cap ETF | Vanguard S&P 500 ETF |
| Type | ETF | ETF |
| Expense ratioi | 0.05% | 0.03% |
| Total assets (AUM)i | $11.05B | $1.73T |
| Dividend yieldi | 0.92% | 1.06% |
- Very low cost mega-cap-only exposure
- Slightly more concentrated in market leaders than SPY
- Vanguard's index efficiency and tax-loss harvesting friendliness
- Among the lowest expense ratios of any S&P 500 fund
- Massive scale and liquidity
- Vanguard's reputation for investor-aligned, at-cost management
- Lower stock count than SPY means less diversification
- Overlaps heavily with any S&P 500 fund
- Thinner trading volume than SPY
- No protection from broad market or mega-cap-tech drawdowns
- Cap-weighting means top holdings dominate returns
- Overlaps with almost every other large-cap fund an investor might own
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