- Issuer
- T. Rowe Price
- Inception Date
- Dec 8, 2015
- Category
- Mid Cap Growth Equities
- Min. Investment
- $500,000
- Distribution Policy
- Distributing
- Asset Class
- Equity
- Asset Class Size
- Large-Cap
- Asset Class Style
- Growth
Share Price Chart
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Performance
TRMSX Performance Chart
T. Rowe Price Mid-Cap Index Fund (TRMSX) is up 11.3% since the beginning of the year. TRMSX is currently trading at $25 per share. Investors who bought $1,000 worth of TRMSX shares 5 years ago would now be looking at an investment worth $1,442.
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Returns By Period
T. Rowe Price Mid-Cap Index Fund (TRMSX) has returned 11.32% so far this year and 23.53% over the past 12 months.
T. Rowe Price Mid-Cap Index Fund
- 1D
- 1.07%
- 1M
- 6.18%
- YTD
- 11.32%
- 6M
- 10.24%
- 1Y
- 23.53%
- 3Y*
- 20.85%
- 5Y*
- 7.59%
- 10Y*
- —
Benchmark (S&P 500 Index)
- 1D
- -0.74%
- 1M
- 4.90%
- YTD
- 10.35%
- 6M
- 10.28%
- 1Y
- 26.52%
- 3Y*
- 20.83%
- 5Y*
- 12.30%
- 10Y*
- 13.66%
TRMSX Monthly Returns History
Based on dividend-adjusted daily data since May 13, 2021, TRMSX's average daily return is +0.04%, while the average monthly return is +0.82%. At this rate, an investment would double in approximately 7.1 years.
Historically, 61% of months were positive and 39% were negative. The best month was Nov 2024 with a return of +12.1%, while the worst month was Apr 2022 at -10.7%. The longest winning streak lasted 7 consecutive months, and the longest losing streak was 3 months.
On a daily basis, TRMSX closed higher 51% of trading days. The best single day was Apr 9, 2025 with a return of +10.7%, while the worst single day was Apr 3, 2025 at -7.0%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0.72% | 1.71% | -4.77% | 7.52% | 4.40% | 1.65% | 11.32% | ||||||
| 2025 | 8.35% | -9.78% | -5.64% | 0.42% | 7.98% | 5.56% | 2.41% | 3.73% | 0.98% | -0.85% | -0.09% | 0.38% | 12.61% |
| 2024 | -1.36% | 6.59% | 3.06% | -6.15% | 2.39% | 0.54% | 3.83% | 1.56% | 2.05% | 1.76% | 12.07% | -6.61% | 19.98% |
| 2023 | 11.27% | -1.50% | -1.53% | -2.36% | 1.38% | 8.30% | 5.66% | -3.45% | -4.31% | -5.80% | 11.83% | 9.17% | 29.90% |
| 2022 | -9.74% | -0.79% | 0.51% | -10.71% | -2.98% | -9.55% | 10.49% | -2.03% | -9.89% | 6.75% | 4.10% | -6.52% | -28.56% |
| 2021 | 5.49% | 3.85% | 0.10% | 1.83% | -4.26% | 6.62% | -5.97% | 0.47% | 7.68% |
Benchmark Metrics
T. Rowe Price Mid-Cap Index Fund has an annualized alpha of -5.73%, beta of 1.18, and R2 of 0.74 versus S&P 500 Index. Calculated based on daily prices since May 14, 2021.
- This fund participated in 113.76% of S&P 500 Index downside but only 95.67% of its upside - more exposed to losses than it benefited from rallies.
- This fund had an annualized alpha of -5.73% versus S&P 500 Index - delivering less than market exposure alone would predict.
- Alpha
- -5.73%
- Beta
- 1.18
- R²
- 0.74
- Upside Capture
- 95.67%
- Downside Capture
- 113.76%
Expense Ratio
TRMSX has an expense ratio of 0.14%, which is considered low.
Return for Risk
Risk / Return Rank
TRMSX ranks 43 for risk / return — on par with similar mutual funds. You're getting a typical balance of risk and reward. Not a standout, but not a red flag either — a reasonable choice if other factors align with your goals.
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for T. Rowe Price Mid-Cap Index Fund (TRMSX) and compare them to S&P 500 Index.
| TRMSX | Benchmark | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.72 | 2.24 | -0.53 |
Sortino ratioReturn per unit of downside risk | 2.48 | 3.07 | -0.59 |
Omega ratioGain probability vs. loss probability | 1.30 | 1.41 | -0.11 |
Calmar ratioReturn relative to maximum drawdown | 3.04 | 2.93 | +0.11 |
Martin ratioReturn relative to average drawdown | 10.62 | 13.52 | -2.90 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Dividends
Dividend History
T. Rowe Price Mid-Cap Index Fund provided a 5.83% dividend yield over the last twelve months, with an annual payout of $1.43 per share. The fund has been increasing its distributions for 2 consecutive years.
| Period | TTM | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|---|
| Dividend | $1.43 | $1.43 | $0.41 | $0.15 | $0.26 | $0.79 |
Dividend yield | 5.83% | 6.49% | 1.98% | 0.86% | 1.92% | 4.01% |
Monthly Dividends
The table displays the monthly dividend distributions for T. Rowe Price Mid-Cap Index Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | ||||||
| 2025 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $1.43 | $1.43 |
| 2024 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.41 | $0.41 |
| 2023 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.15 | $0.15 |
| 2022 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.26 | $0.26 |
| 2021 | $0.79 | $0.79 |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
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Worst Drawdowns
The table below displays the maximum drawdowns of the T. Rowe Price Mid-Cap Index Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the T. Rowe Price Mid-Cap Index Fund was 37.34%, occurring on Oct 14, 2022. Recovery took 505 trading sessions.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
Bear market2022 | -37.34%Oct 2022 | 11mo 1d | 2y 5d | 2y 11moNov 2021 - Oct 2024 |
2025 selloff2025 | -26.02%Apr 2025 | 4mo 4d | 3mo 16d | 7mo 20dDec 2024 - Jul 2025 |
2026 pullback2026 | -9.51%Mar 2026 | 2mo 13d | 18d | 3mo 1dJan 2026 - Apr 2026 |
2025 pullback2025 | -8.02%Nov 2025 | 23d | 21d | 1mo 14dOct 2025 - Dec 2025 |
2021 pullback2021 | -6.21%Oct 2021 | 27d | 15d | 1mo 12dSep 2021 - Oct 2021 |
Drawdown Indicators
| TRMSX | Benchmark | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -37.34% | -56.78% | +19.44% |
Max Drawdown (1Y)Largest decline over 1 year | -9.51% | -9.10% | -0.41% |
Max Drawdown (3Y)Largest decline over 3 years | -26.02% | -18.90% | -7.12% |
Max Drawdown (5Y)Largest decline over 5 years | -37.34% | -25.43% | -11.91% |
Max Drawdown (10Y)Largest decline over 10 years | — | -33.92% | — |
Current DrawdownCurrent decline from peak | 0.00% | -0.74% | +0.74% |
Average DrawdownAverage peak-to-trough decline | -13.90% | -10.72% | -3.18% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.58% | 1.97% | +0.61% |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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