TMDIX vs. VOO
TMDIX (AMG TimesSquare Mid Cap Growth Fund) and VOO (Vanguard S&P 500 ETF) are both funds - TMDIX is a Mid Cap Growth Equities fund managed by AMG, while VOO is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, TMDIX returned 12.70%/yr vs 15.14%/yr for VOO. Their correlation of 0.89 means they have usually moved in the same direction. TMDIX charges 0.98%/yr vs 0.03%/yr for VOO.
Performance
TMDIX vs. VOO - Performance Comparison
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Returns By Period
In the year-to-date period, TMDIX achieves a 4.53% return, which is significantly lower than VOO's 10.16% return. Over the past 10 years, TMDIX has underperformed VOO with an annualized return of 12.70%, while VOO has yielded a comparatively higher 15.14% annualized return.
TMDIX
- 1D
- 2.45%
- 1M
- -3.41%
- 6M
- 5.22%
- YTD
- 4.53%
- 1Y
- -6.10%
- 3Y*
- 6.58%
- 5Y*
- 2.93%
- 10Y*
- 12.70%
- ALL TIME*
- 10.91%
VOO
- 1D
- 0.71%
- 1M
- 0.26%
- 6M
- 8.58%
- YTD
- 10.16%
- 1Y
- 21.58%
- 3Y*
- 19.42%
- 5Y*
- 12.83%
- 10Y*
- 15.14%
- ALL TIME*
- 14.78%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $3.82B | $3.78B | $5.44B |
TMDIX vs. VOO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TMDIX AMG TimesSquare Mid Cap Growth Fund | 4.53% | -1.76% | 10.84% | 25.07% | -22.26% | 16.75% | 33.42% | 63.26% | -4.28% | 22.66% |
VOO Vanguard S&P 500 ETF | 10.16% | 17.82% | 24.98% | 26.32% | -18.17% | 28.79% | 18.32% | 31.37% | -4.50% | 21.77% |
Correlation
The correlation between TMDIX and VOO is 0.80, meaning they have usually moved in the same direction, including during past declines.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.80 |
Correlation (3Y) Balances recent behavior with more history. | 0.83 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.87 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.87 |
Correlation (All Time) Calculated using the full available price history since Sep 9, 2010 | 0.89 |
The correlation between TMDIX and VOO has been stable across timeframes, ranging from 0.80 to 0.89 - a consistent structural relationship.
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Return for Risk
TMDIX vs. VOO — Risk / Return Rank
TMDIX
VOO
TMDIX vs. VOO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for AMG TimesSquare Mid Cap Growth Fund (TMDIX) and Vanguard S&P 500 ETF (VOO). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| TMDIX | VOO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.92 | ||
| Sortino ratioReturn per unit of downside risk | -2.51 | ||
| Omega ratioGain probability vs. loss probability | 0.95 | 1.28 | -0.33 |
| Calmar ratioReturn relative to maximum drawdown | -0.31 | 2.21 | -2.52 |
| Martin ratioReturn relative to average drawdown | -0.61 | 9.44 | -10.05 |
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Drawdowns
TMDIX vs. VOO - Drawdown Comparison
The maximum TMDIX drawdown since its inception was -48.73%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for TMDIX and VOO.
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Drawdown Indicators
| TMDIX | VOO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -48.73% | -33.99% | -14.74% |
Max Drawdown (1Y)Largest decline over 1 year | -25.45% | -8.90% | -16.55% |
Max Drawdown (3Y)Largest decline over 3 years | -25.45% | -18.69% | -6.76% |
Max Drawdown (5Y)Largest decline over 5 years | -30.53% | -24.52% | -6.01% |
Max Drawdown (10Y)Largest decline over 10 years | -35.44% | -33.99% | -1.45% |
Current DrawdownCurrent decline from peak | -12.48% | -1.38% | -11.10% |
Average DrawdownAverage peak-to-trough decline | -7.19% | -3.67% | -3.52% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 12.95% | 2.08% | +10.87% |
Volatility
TMDIX vs. VOO - Volatility Comparison
AMG TimesSquare Mid Cap Growth Fund (TMDIX) has a higher volatility of 4.81% compared to Vanguard S&P 500 ETF (VOO) at 3.54%. This indicates that TMDIX's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TMDIX | VOO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.81% | 3.54% | +1.27% |
Volatility (6M)Calculated over the trailing 6-month period | 14.06% | 10.10% | +3.96% |
Volatility (1Y)Calculated over the trailing 1-year period | 20.64% | 12.82% | +7.82% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 20.59% | 16.93% | +3.66% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 21.11% | 18.01% | +3.10% |
TMDIX vs. VOO - Expense Ratio Comparison
TMDIX has a 0.98% expense ratio, which is higher than VOO's 0.03% expense ratio.
Dividends
TMDIX vs. VOO - Dividend Comparison
TMDIX has not paid dividends to shareholders, while VOO's dividend yield for the trailing twelve months is around 1.07%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
TMDIX AMG TimesSquare Mid Cap Growth Fund | 0.00% | 0.00% | 8.08% | 3.98% | 3.69% | 29.72% | 18.28% | 31.06% | 16.38% | 14.44% | 5.90% | 7.73% |
VOO Vanguard S&P 500 ETF | 1.07% | 1.13% | 1.24% | 1.46% | 1.69% | 1.25% | 1.54% | 1.88% | 2.06% | 1.78% | 2.02% | 2.10% |
Frequently Asked Questions
TMDIX and VOO have a correlation of 0.80, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TMDIX has higher volatility (4.81%) compared to VOO (3.54%). In terms of maximum drawdown, TMDIX dropped -48.73% vs VOO's -33.99%.
VOO currently has the higher Sharpe Ratio (1.53 vs -0.39), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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