PAIJX vs. PRSCX

Last updated Jun 23, 2026

PAIJX (T. Rowe Price Emerging Markets Discovery Stock Fund) and PRSCX (T. Rowe Price Science And Technology Fund) are both mutual funds - PAIJX is a Emerging Markets Diversified fund managed by T. Rowe Price, while PRSCX is a Technology Equities fund actively managed by T. Rowe Price. Over the past 10 years, PAIJX returned 11.50%/yr vs 23.39%/yr for PRSCX. A 0.68 correlation means they provide meaningful diversification when combined. PAIJX charges 1.60%/yr vs 0.80%/yr for PRSCX.

Performance

PAIJX vs. PRSCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T. Rowe Price Emerging Markets Discovery Stock Fund (PAIJX) and T. Rowe Price Science And Technology Fund (PRSCX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PAIJX achieves a 29.08% return, which is significantly lower than PRSCX's 42.10% return. Over the past 10 years, PAIJX has underperformed PRSCX with an annualized return of 11.50%, while PRSCX has yielded a comparatively higher 23.39% annualized return.

PAIJX

• 1D: 2.50%
• 1M: 6.45%
• YTD: 29.08%
• 6M: 31.67%
• 1Y: 60.13%
• 3Y*: 24.17%
• 5Y*: 10.46%
• 10Y*: 11.50%

PRSCX

• 1D: 4.93%
• 1M: 9.62%
• YTD: 42.10%
• 6M: 40.90%
• 1Y: 79.76%
• 3Y*: 39.17%
• 5Y*: 18.25%
• 10Y*: 23.39%

*Multi-year figures are annualized to reflect compound growth (CAGR)

PAIJX vs. PRSCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PAIJX T. Rowe Price Emerging Markets Discovery Stock Fund	29.08%	37.89%	5.37%	10.72%	-16.04%	4.03%	6.46%	15.99%	-10.23%	32.42%
PRSCX T. Rowe Price Science And Technology Fund	42.10%	24.28%	40.49%	53.77%	-35.40%	5.83%	45.94%	53.80%	-7.52%	39.38%

Correlation

The correlation between PAIJX and PRSCX is 0.68, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.68
Correlation (3Y) Calculated over the trailing 3-year period	0.62
Correlation (5Y) Calculated over the trailing 5-year period	0.66
Correlation (10Y) Calculated over the trailing 10-year period	0.67
Correlation (All Time) Calculated using the full available price history since Sep 17, 2015	0.68

The correlation between PAIJX and PRSCX has been stable across timeframes, ranging from 0.62 to 0.68 - a consistent structural relationship.

Return for Risk

PAIJX vs. PRSCX — Risk / Return Rank

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

PAIJX

PAIJX Risk / Return Rank: 89
PAIJX Sharpe Ratio Rank: 93
PAIJX Sortino Ratio Rank: 83
PAIJX Omega Ratio Rank: 86
PAIJX Calmar Ratio Rank: 91
PAIJX Martin Ratio Rank: 90

PRSCX

PRSCX Risk / Return Rank: 87
PRSCX Sharpe Ratio Rank: 94
PRSCX Sortino Ratio Rank: 80
PRSCX Omega Ratio Rank: 80
PRSCX Calmar Ratio Rank: 91
PRSCX Martin Ratio Rank: 89

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.

PAIJX vs. PRSCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Emerging Markets Discovery Stock Fund (PAIJX) 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.

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.

	PAIJX	PRSCX	Difference
Sharpe ratio: Return per unit of total volatility	2.95	2.97	-0.02
Sortino ratio: Return per unit of downside risk	3.64	3.46	+0.18
Omega ratio: Gain probability vs. loss probability	1.56	1.48	+0.07
Calmar ratio: Return relative to maximum drawdown	4.43	4.56	-0.13
Martin ratio: Return relative to average drawdown	16.54	16.24	+0.30

PAIJX vs. PRSCX - Sharpe Ratio Comparison

The current PAIJX Sharpe Ratio is 2.95, which is comparable to the PRSCX Sharpe Ratio of 2.97. The chart below compares the historical Sharpe Ratios of PAIJX and PRSCX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

PAIJX vs. PRSCX - Drawdown Comparison

The maximum PAIJX drawdown since its inception was -42.19%, smaller than the maximum PRSCX drawdown of -85.26%. Use the drawdown chart below to compare losses from any high point for PAIJX and PRSCX.

Drawdown Indicators

	PAIJX	PRSCX	Difference
Max Drawdown Largest peak-to-trough decline	-42.19%	-85.26%	+43.07%
Max Drawdown (1Y) Largest decline over 1 year	-13.29%	-17.99%	+4.70%
Max Drawdown (3Y) Largest decline over 3 years	-16.35%	-31.06%	+14.71%
Max Drawdown (5Y) Largest decline over 5 years	-31.55%	-46.19%	+14.64%
Max Drawdown (10Y) Largest decline over 10 years	-42.19%	-46.19%	+4.00%
Current Drawdown Current decline from peak	-1.38%	0.00%	-1.38%
Average Drawdown Average peak-to-trough decline	-10.32%	-29.86%	+19.54%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.55%	4.97%	-1.42%

Volatility

PAIJX vs. PRSCX - Volatility Comparison

The current volatility for T. Rowe Price Emerging Markets Discovery Stock Fund (PAIJX) is 10.39%, while T. Rowe Price Science And Technology Fund (PRSCX) has a volatility of 15.51%. This indicates that PAIJX 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.

Volatility by Period

	PAIJX	PRSCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.39%	15.51%	-5.12%
Volatility (6M) Calculated over the trailing 6-month period	17.85%	23.90%	-6.05%
Volatility (1Y) Calculated over the trailing 1-year period	19.99%	27.63%	-7.64%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.18%	28.51%	-11.33%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.89%	25.18%	-7.29%

PAIJX vs. PRSCX - Expense Ratio Comparison

PAIJX has a 1.60% expense ratio, which is higher than PRSCX's 0.80% expense ratio.

Dividends

PAIJX vs. PRSCX - Dividend Comparison

PAIJX's dividend yield for the trailing twelve months is around 3.26%, less than PRSCX's 8.11% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PAIJX T. Rowe Price Emerging Markets Discovery Stock Fund	3.26%	4.20%	2.72%	2.71%	1.85%	2.24%	0.00%	2.49%	1.24%	3.68%	3.00%	1.53%
PRSCX T. Rowe Price Science And Technology Fund	8.11%	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

Can I hold both PAIJX and PRSCX in my portfolio?

PAIJX and PRSCX have a correlation of 0.68, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PAIJX or PRSCX?

PRSCX has higher volatility (15.51%) compared to PAIJX (10.39%). In terms of maximum drawdown, PAIJX dropped -42.19% vs PRSCX's -85.26%.

Which has better risk-adjusted returns?

PRSCX currently has the higher Sharpe Ratio (2.97 vs 2.95), 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.