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PRSCX vs. PRFHX
Performance
Return for Risk
Drawdowns
Volatility
Dividends

Performance

PRSCX vs. PRFHX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T. Rowe Price Science And Technology Fund (PRSCX) and T. Rowe Price Tax Free High Yield Fund (PRFHX). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, PRSCX achieves a 25.22% return, which is significantly higher than PRFHX's 3.43% return. Over the past 10 years, PRSCX has outperformed PRFHX with an annualized return of 21.44%, while PRFHX has yielded a comparatively lower 2.93% annualized return.


PRSCX

1D
-0.14%
1M
-6.71%
6M
22.00%
YTD
25.22%
1Y
45.68%
3Y*
32.04%
5Y*
15.49%
10Y*
21.44%

PRFHX

1D
-0.09%
1M
0.34%
6M
2.78%
YTD
3.43%
1Y
11.76%
3Y*
6.50%
5Y*
1.58%
10Y*
2.93%
*Multi-year figures are annualized to reflect compound growth (CAGR)

PRSCX vs. PRFHX - Yearly Performance Comparison


2026 (YTD)202520242023202220212020201920182017
PRSCX
T. Rowe Price Science And Technology Fund
25.22%24.28%40.49%53.77%-35.40%5.83%45.94%53.80%-7.52%39.38%
PRFHX
T. Rowe Price Tax Free High Yield Fund
3.43%5.53%7.00%7.65%-14.41%6.09%3.40%9.03%0.66%7.31%

Correlation

The correlation between PRSCX and PRFHX is 0.10, which is low. Their price movements are largely independent, making them effective diversification partners.


Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.10

Correlation (3Y)
Calculated over the trailing 3-year period

0.07

Correlation (5Y)
Calculated over the trailing 5-year period

0.10

Correlation (10Y)
Calculated over the trailing 10-year period

0.06

Correlation (All Time)
Calculated using the full available price history since Jan 4, 1988

-0.01

The correlation between PRSCX and PRFHX shifts across timeframes, from -0.01 (all time) to 0.10 (1 year), reflecting how their relationship changes across market environments.

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Return for Risk

PRSCX vs. PRFHX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

PRSCX
PRSCX Risk / Return Rank: 5151
Overall Rank
PRSCX Sharpe Ratio Rank: 4747
Sharpe Ratio Rank
PRSCX Sortino Ratio Rank: 3737
Sortino Ratio Rank
PRSCX Omega Ratio Rank: 4545
Omega Ratio Rank
PRSCX Calmar Ratio Rank: 7373
Calmar Ratio Rank
PRSCX Martin Ratio Rank: 5050
Martin Ratio Rank

PRFHX
PRFHX Risk / Return Rank: 9797
Overall Rank
PRFHX Sharpe Ratio Rank: 9999
Sharpe Ratio Rank
PRFHX Sortino Ratio Rank: 9898
Sortino Ratio Rank
PRFHX Omega Ratio Rank: 9797
Omega Ratio Rank
PRFHX Calmar Ratio Rank: 9494
Calmar Ratio Rank
PRFHX Martin Ratio Rank: 9696
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

PRSCX vs. PRFHX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Science And Technology Fund (PRSCX) and T. Rowe Price Tax Free High Yield Fund (PRFHX). 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.


PRSCXPRFHXDifference
Sharpe ratioReturn per unit of total volatility

-2.04

Sortino ratioReturn per unit of downside risk

-3.92

Omega ratioGain probability vs. loss probability

1.28

1.88

-0.61

Calmar ratioReturn relative to maximum drawdown

2.68

4.26

-1.58

Martin ratioReturn relative to average drawdown

8.29

17.94

-9.65

PRSCX vs. PRFHX - Sharpe Ratio Comparison

The current PRSCX Sharpe Ratio is 1.53, which is lower than the PRFHX Sharpe Ratio of 3.57. The chart below compares the historical Sharpe Ratios of PRSCX and PRFHX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.


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Drawdowns

PRSCX vs. PRFHX - Drawdown Comparison

The maximum PRSCX drawdown since its inception was -85.26%, which is greater than PRFHX's maximum drawdown of -24.76%. Use the drawdown chart below to compare losses from any high point for PRSCX and PRFHX.


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Drawdown Indicators


PRSCXPRFHXDifference

Max Drawdown

Largest peak-to-trough decline

-85.26%

-24.76%

-60.50%

Max Drawdown (1Y)

Largest decline over 1 year

-17.99%

-2.75%

-15.24%

Max Drawdown (3Y)

Largest decline over 3 years

-31.06%

-6.91%

-24.15%

Max Drawdown (5Y)

Largest decline over 5 years

-46.19%

-18.81%

-27.38%

Max Drawdown (10Y)

Largest decline over 10 years

-46.19%

-18.81%

-27.38%

Current Drawdown

Current decline from peak

-13.61%

-0.62%

-12.99%

Average Drawdown

Average peak-to-trough decline

-29.82%

-2.77%

-27.05%

Ulcer Index

Depth and duration of drawdowns from previous peaks

5.72%

0.70%

+5.02%

Volatility

PRSCX vs. PRFHX - Volatility Comparison

T. Rowe Price Science And Technology Fund (PRSCX) has a higher volatility of 17.71% compared to T. Rowe Price Tax Free High Yield Fund (PRFHX) at 0.71%. This indicates that PRSCX's price experiences larger fluctuations and is considered to be riskier than PRFHX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


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Volatility by Period


PRSCXPRFHXDifference

Volatility (1M)

Calculated over the trailing 1-month period

17.71%

0.71%

+17.00%

Volatility (6M)

Calculated over the trailing 6-month period

28.01%

2.32%

+25.69%

Volatility (1Y)

Calculated over the trailing 1-year period

31.47%

3.29%

+28.18%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

29.31%

4.90%

+24.41%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

25.57%

4.64%

+20.93%

PRSCX vs. PRFHX - Expense Ratio Comparison

PRSCX has a 0.80% expense ratio, which is higher than PRFHX's 0.63% expense ratio.


Dividends

PRSCX vs. PRFHX - Dividend Comparison

PRSCX's dividend yield for the trailing twelve months is around 9.20%, more than PRFHX's 5.50% yield.


PositionTTM20252024202320222021202020192018201720162015
PRFHX
T. Rowe Price Tax Free High Yield Fund
5.50%5.46%4.75%4.19%2.81%3.01%3.47%3.52%3.71%3.64%3.88%4.02%
PRSCX
T. Rowe Price Science And Technology Fund
9.20%11.53%9.43%0.00%7.83%33.69%13.90%10.91%36.03%13.21%3.68%18.51%

Frequently Asked Questions


PRSCX and PRFHX have a correlation of 0.10, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

PRSCX has higher volatility (17.71%) compared to PRFHX (0.71%). In terms of maximum drawdown, PRSCX dropped -85.26% vs PRFHX's -24.76%.

PRFHX currently has the higher Sharpe Ratio (3.57 vs 1.53), 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.

Portfolio Optimizer

Find the right allocation for PRSCX and PRFHX

Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.

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