TROIX vs. TSNIX

Last updated Jun 4, 2026

TROIX (T. Rowe Price Overseas Stock Fund Class I) and TSNIX (T. Rowe Price Science & Technology Fund I Class) are both mutual funds - TROIX is a Foreign Large Cap Equities fund actively managed by T. Rowe Price, while TSNIX is a Technology Equities fund actively managed by T. Rowe Price. Both are actively managed. Over the past 10 years, TROIX returned 9.47%/yr vs 23.81%/yr for TSNIX. A 0.69 correlation means they provide meaningful diversification when combined. Both charge a 0.67% expense ratio.

Performance

TROIX vs. TSNIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T. Rowe Price Overseas Stock Fund Class I (TROIX) and T. Rowe Price Science & Technology Fund I Class (TSNIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TROIX achieves a 9.77% return, which is significantly lower than TSNIX's 41.46% return. Over the past 10 years, TROIX has underperformed TSNIX with an annualized return of 9.47%, while TSNIX has yielded a comparatively higher 23.81% annualized return.

TROIX

• 1D: 0.45%
• 1M: 4.90%
• YTD: 9.77%
• 6M: 12.42%
• 1Y: 25.83%
• 3Y*: 16.73%
• 5Y*: 8.03%
• 10Y*: 9.47%

TSNIX

• 1D: 2.32%
• 1M: 21.77%
• YTD: 41.46%
• 6M: 38.63%
• 1Y: 84.08%
• 3Y*: 40.47%
• 5Y*: 18.82%
• 10Y*: 23.81%

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

TROIX vs. TSNIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TROIX T. Rowe Price Overseas Stock Fund Class I	9.77%	31.93%	2.96%	16.60%	-15.38%	12.43%	9.33%	23.04%	-14.85%	27.25%
TSNIX T. Rowe Price Science & Technology Fund I Class	41.46%	24.45%	40.65%	53.94%	-35.29%	5.72%	46.10%	55.54%	-7.41%	39.56%

Correlation

The correlation between TROIX and TSNIX is 0.56, 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	0.56
Correlation (3Y) Calculated over the trailing 3-year period	0.60
Correlation (5Y) Calculated over the trailing 5-year period	0.66
Correlation (10Y) Calculated over the trailing 10-year period	0.69
Correlation (All Time) Calculated using the full available price history since Mar 28, 2016	0.69

The correlation between TROIX and TSNIX shifts across timeframes, from 0.56 (1 year) to 0.69 (10 years), reflecting how their relationship changes across market environments.

Return for Risk

TROIX vs. TSNIX — Risk / Return Rank

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

TROIX

TROIX Risk / Return Rank: 32
TROIX Sharpe Ratio Rank: 32
TROIX Sortino Ratio Rank: 31
TROIX Omega Ratio Rank: 32
TROIX Calmar Ratio Rank: 29
TROIX Martin Ratio Rank: 33

TSNIX

TSNIX Risk / Return Rank: 91
TSNIX Sharpe Ratio Rank: 98
TSNIX Sortino Ratio Rank: 90
TSNIX Omega Ratio Rank: 86
TSNIX Calmar Ratio Rank: 92
TSNIX Martin Ratio Rank: 91

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.

TROIX vs. TSNIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Overseas Stock Fund Class I (TROIX) and T. Rowe Price Science & Technology Fund I Class (TSNIX). 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.

	TROIX	TSNIX	Difference
Sharpe ratio: Return per unit of total volatility	1.63	3.81	-2.18
Sortino ratio: Return per unit of downside risk	2.33	4.41	-2.08
Omega ratio: Gain probability vs. loss probability	1.30	1.59	-0.29
Calmar ratio: Return relative to maximum drawdown	2.02	5.06	-3.04
Martin ratio: Return relative to average drawdown	7.50	18.86	-11.36
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

TROIX vs. TSNIX - Sharpe Ratio Comparison

The current TROIX Sharpe Ratio is 1.63, which is lower than the TSNIX Sharpe Ratio of 3.81. The chart below compares the historical Sharpe Ratios of TROIX and TSNIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	TROIX	TSNIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.63	3.81	-2.18
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.50	0.68	-0.18
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.56	0.97	-0.40
Sharpe Ratio (All Time) Calculated using the full available price history	0.51	0.98	-0.47

Drawdowns

TROIX vs. TSNIX - Drawdown Comparison

The maximum TROIX drawdown since its inception was -36.11%, smaller than the maximum TSNIX drawdown of -46.22%. Use the drawdown chart below to compare losses from any high point for TROIX and TSNIX.

Drawdown Indicators

	TROIX	TSNIX	Difference
Max Drawdown Largest peak-to-trough decline	-36.11%	-46.22%	+10.11%
Max Drawdown (1Y) Largest decline over 1 year	-12.42%	-17.97%	+5.55%
Max Drawdown (3Y) Largest decline over 3 years	-14.09%	-31.04%	+16.95%
Max Drawdown (5Y) Largest decline over 5 years	-29.37%	-46.22%	+16.85%
Max Drawdown (10Y) Largest decline over 10 years	-36.11%	-46.22%	+10.11%
Current Drawdown Current decline from peak	-0.17%	0.00%	-0.17%
Average Drawdown Average peak-to-trough decline	-6.71%	-8.71%	+2.00%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.33%	4.74%	-1.41%

Volatility

TROIX vs. TSNIX - Volatility Comparison

The current volatility for T. Rowe Price Overseas Stock Fund Class I (TROIX) is 4.78%, while T. Rowe Price Science & Technology Fund I Class (TSNIX) has a volatility of 9.42%. This indicates that TROIX experiences smaller price fluctuations and is considered to be less risky than TSNIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TROIX	TSNIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.78%	9.42%	-4.64%
Volatility (6M) Calculated over the trailing 6-month period	12.83%	19.92%	-7.09%
Volatility (1Y) Calculated over the trailing 1-year period	15.40%	23.86%	-8.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.06%	27.84%	-11.78%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.94%	24.85%	-7.91%

TROIX vs. TSNIX - Expense Ratio Comparison

Both TROIX and TSNIX have an expense ratio of 0.67%.

Dividends

TROIX vs. TSNIX - Dividend Comparison

TROIX's dividend yield for the trailing twelve months is around 1.96%, less than TSNIX's 8.24% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
TROIX T. Rowe Price Overseas Stock Fund Class I	1.96%	2.15%	2.60%	2.32%	2.54%	1.88%	1.66%	2.14%	3.44%	1.95%	2.54%	2.11%
TSNIX T. Rowe Price Science & Technology Fund I Class	8.24%	11.66%	9.62%	0.00%	7.82%	33.71%	14.00%	11.91%	36.28%	13.35%	3.82%	0.00%

Frequently Asked Questions

Can I hold both TROIX and TSNIX in my portfolio?

TROIX and TSNIX have a correlation of 0.56, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TROIX or TSNIX?

TSNIX has higher volatility (9.42%) compared to TROIX (4.78%). In terms of maximum drawdown, TROIX dropped -36.11% vs TSNIX's -46.22%.

Which has better risk-adjusted returns?

TSNIX currently has the higher Sharpe Ratio (3.81 vs 1.63), 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.