TMDIX vs. USMIX
TMDIX (AMG TimesSquare Mid Cap Growth Fund) and USMIX (USAA Extended Market Index Fund) are both Mid Cap Growth Equities funds. Over the past 10 years, TMDIX returned 12.70%/yr vs 11.58%/yr for USMIX. Their correlation of 0.91 means they have usually moved in the same direction. TMDIX charges 0.98%/yr vs 0.38%/yr for USMIX.
Performance
TMDIX vs. USMIX - 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 USMIX's 14.54% return. Over the past 10 years, TMDIX has outperformed USMIX with an annualized return of 12.70%, while USMIX has yielded a comparatively lower 11.58% 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%
USMIX
- 1D
- 0.74%
- 1M
- -0.85%
- 6M
- 10.00%
- YTD
- 14.54%
- 1Y
- 27.62%
- 3Y*
- 14.44%
- 5Y*
- 6.30%
- 10Y*
- 11.58%
- ALL TIME*
- 8.65%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
TMDIX vs. USMIX - 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% |
USMIX USAA Extended Market Index Fund | 14.54% | 10.44% | 11.99% | 25.81% | -24.04% | 15.29% | 31.20% | 27.93% | -9.71% | 17.72% |
Correlation
The correlation between TMDIX and USMIX is 0.84, 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. | 0.84 |
Correlation (3Y) Balances recent behavior with more history. | 0.83 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.88 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.88 |
Correlation (All Time) Calculated using the full available price history since Mar 4, 2005 | 0.91 |
The correlation between TMDIX and USMIX has been stable across timeframes, ranging from 0.83 to 0.91 - a consistent structural relationship.
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Return for Risk
TMDIX vs. USMIX — Risk / Return Rank
TMDIX
USMIX
TMDIX vs. USMIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for AMG TimesSquare Mid Cap Growth Fund (TMDIX) and USAA Extended Market Index Fund (USMIX). 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 | USMIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.87 | ||
| Sortino ratioReturn per unit of downside risk | -2.57 | ||
| Omega ratioGain probability vs. loss probability | 0.95 | 1.26 | -0.31 |
| Calmar ratioReturn relative to maximum drawdown | -0.31 | 2.47 | -2.78 |
| Martin ratioReturn relative to average drawdown | -0.61 | 9.02 | -9.63 |
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Drawdowns
TMDIX vs. USMIX - Drawdown Comparison
The maximum TMDIX drawdown since its inception was -48.73%, smaller than the maximum USMIX drawdown of -57.91%. Use the drawdown chart below to compare losses from any high point for TMDIX and USMIX.
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Drawdown Indicators
| TMDIX | USMIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -48.73% | -57.91% | +9.18% |
Max Drawdown (1Y)Largest decline over 1 year | -25.45% | -9.97% | -15.48% |
Max Drawdown (3Y)Largest decline over 3 years | -25.45% | -31.84% | +6.39% |
Max Drawdown (5Y)Largest decline over 5 years | -30.53% | -37.86% | +7.33% |
Max Drawdown (10Y)Largest decline over 10 years | -35.44% | -41.86% | +6.42% |
Current DrawdownCurrent decline from peak | -12.48% | -1.33% | -11.15% |
Average DrawdownAverage peak-to-trough decline | -7.19% | -11.93% | +4.74% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 12.95% | 2.73% | +10.22% |
Volatility
TMDIX vs. USMIX - Volatility Comparison
AMG TimesSquare Mid Cap Growth Fund (TMDIX) has a higher volatility of 4.81% compared to USAA Extended Market Index Fund (USMIX) at 3.25%. This indicates that TMDIX's price experiences larger fluctuations and is considered to be riskier than USMIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TMDIX | USMIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.81% | 3.25% | +1.56% |
Volatility (6M)Calculated over the trailing 6-month period | 14.06% | 11.77% | +2.29% |
Volatility (1Y)Calculated over the trailing 1-year period | 20.64% | 16.60% | +4.04% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 20.59% | 24.94% | -4.35% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 21.11% | 23.62% | -2.51% |
TMDIX vs. USMIX - Expense Ratio Comparison
TMDIX has a 0.98% expense ratio, which is higher than USMIX's 0.38% expense ratio.
Dividends
TMDIX vs. USMIX - Dividend Comparison
TMDIX has not paid dividends to shareholders, while USMIX's dividend yield for the trailing twelve months is around 5.65%.
| 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% |
USMIX USAA Extended Market Index Fund | 5.65% | 6.47% | 14.41% | 4.41% | 8.78% | 17.98% | 3.32% | 3.18% | 6.48% | 7.48% | 7.07% | 8.02% |
Frequently Asked Questions
TMDIX and USMIX have a correlation of 0.84, 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 USMIX (3.25%). In terms of maximum drawdown, TMDIX dropped -48.73% vs USMIX's -57.91%.
USMIX currently has the higher Sharpe Ratio (1.48 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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