TIDDX vs. PRSCX
Compare and contrast key facts about T. Rowe Price International Discovery Fund Class I (TIDDX) and T. Rowe Price Science And Technology Fund (PRSCX).
TIDDX is a passively managed fund by T. Rowe Price that tracks the performance of the S&P Global ex-U.S. Small Cap Index Net. It was launched on Dec 17, 2015. PRSCX is managed by T. Rowe Price. It was launched on Sep 29, 1987.
Performance
TIDDX vs. PRSCX - Performance Comparison
Loading graphics...
TIDDX vs. PRSCX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TIDDX T. Rowe Price International Discovery Fund Class I | -1.33% | 25.73% | 3.81% | 13.38% | -30.23% | 7.45% | 38.95% | 25.18% | -17.42% | 38.58% |
PRSCX T. Rowe Price Science And Technology Fund | -7.22% | 24.28% | 40.49% | 53.77% | -35.40% | 5.83% | 45.94% | 53.80% | -7.52% | 39.38% |
Returns By Period
In the year-to-date period, TIDDX achieves a -1.33% return, which is significantly higher than PRSCX's -7.22% return. Over the past 10 years, TIDDX has underperformed PRSCX with an annualized return of 8.47%, while PRSCX has yielded a comparatively higher 18.91% annualized return.
TIDDX
- 1D
- 3.20%
- 1M
- -9.42%
- YTD
- -1.33%
- 6M
- 2.11%
- 1Y
- 21.66%
- 3Y*
- 11.32%
- 5Y*
- 0.75%
- 10Y*
- 8.47%
PRSCX
- 1D
- 4.45%
- 1M
- -10.27%
- YTD
- -7.22%
- 6M
- -5.06%
- 1Y
- 35.53%
- 3Y*
- 25.22%
- 5Y*
- 9.13%
- 10Y*
- 18.91%
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
TIDDX vs. PRSCX - Expense Ratio Comparison
TIDDX has a 1.08% expense ratio, which is higher than PRSCX's 0.84% expense ratio.
Return for Risk
TIDDX vs. PRSCX — Risk / Return Rank
TIDDX
PRSCX
TIDDX vs. PRSCX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price International Discovery Fund Class I (TIDDX) and T. Rowe Price Science And Technology Fund (PRSCX). 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.
| TIDDX | PRSCX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.43 | 1.38 | +0.05 |
Sortino ratioReturn per unit of downside risk | 1.89 | 1.98 | -0.09 |
Omega ratioGain probability vs. loss probability | 1.28 | 1.27 | 0.00 |
Calmar ratioReturn relative to maximum drawdown | 1.53 | 1.75 | -0.22 |
Martin ratioReturn relative to average drawdown | 5.98 | 5.78 | +0.20 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading graphics...
Sharpe Ratios by Period
| TIDDX | PRSCX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.43 | 1.38 | +0.05 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.05 | 0.34 | -0.29 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.51 | 0.78 | -0.26 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.50 | 0.48 | +0.02 |
Correlation
The correlation between TIDDX and PRSCX is 0.72, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
TIDDX vs. PRSCX - Dividend Comparison
TIDDX's dividend yield for the trailing twelve months is around 5.35%, less than PRSCX's 12.42% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
TIDDX T. Rowe Price International Discovery Fund Class I | 5.35% | 5.28% | 4.36% | 2.24% | 3.17% | 15.55% | 4.39% | 1.51% | 6.38% | 3.11% | 2.50% | 0.00% |
PRSCX T. Rowe Price Science And Technology Fund | 12.42% | 11.53% | 9.43% | 0.00% | 7.83% | 33.69% | 13.90% | 10.91% | 36.03% | 13.21% | 3.68% | 18.51% |
Drawdowns
TIDDX vs. PRSCX - Drawdown Comparison
The maximum TIDDX drawdown since its inception was -43.76%, smaller than the maximum PRSCX drawdown of -85.26%. Use the drawdown chart below to compare losses from any high point for TIDDX and PRSCX.
Loading graphics...
Drawdown Indicators
| TIDDX | PRSCX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -43.76% | -85.26% | +41.50% |
Max Drawdown (1Y)Largest decline over 1 year | -13.50% | -17.99% | +4.49% |
Max Drawdown (5Y)Largest decline over 5 years | -43.76% | -46.19% | +2.43% |
Max Drawdown (10Y)Largest decline over 10 years | -43.76% | -46.19% | +2.43% |
Current DrawdownCurrent decline from peak | -10.59% | -14.33% | +3.74% |
Average DrawdownAverage peak-to-trough decline | -13.36% | -30.01% | +16.65% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.45% | 5.45% | -2.00% |
Volatility
TIDDX vs. PRSCX - Volatility Comparison
The current volatility for T. Rowe Price International Discovery Fund Class I (TIDDX) is 7.23%, while T. Rowe Price Science And Technology Fund (PRSCX) has a volatility of 10.11%. This indicates that TIDDX experiences smaller price fluctuations and is considered to be less risky than PRSCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading graphics...
Volatility by Period
| TIDDX | PRSCX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.23% | 10.11% | -2.88% |
Volatility (6M)Calculated over the trailing 6-month period | 10.74% | 17.96% | -7.22% |
Volatility (1Y)Calculated over the trailing 1-year period | 15.60% | 27.58% | -11.98% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.61% | 27.42% | -10.81% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 16.53% | 24.54% | -8.01% |