TSNIX vs. TROIX

Last updated Aug 1, 2026

TSNIX (T. Rowe Price Science & Technology Fund I Class) and TROIX (T. Rowe Price Overseas Stock Fund Class I) are both mutual funds - TSNIX is a Technology Equities fund actively managed by T. Rowe Price, while TROIX is a Foreign Large Cap Equities fund actively managed by T. Rowe Price. Both are actively managed. Over the past 10 years, TSNIX returned 20.79%/yr vs 9.70%/yr for TROIX. Their 0.69 correlation means they have sometimes moved together and sometimes differently. Both charge a 0.67% expense ratio.

Performance

TSNIX vs. TROIX - Performance Comparison

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

Returns By Period

In the year-to-date period, TSNIX achieves a 19.63% return, which is significantly higher than TROIX's 12.05% return. Over the past 10 years, TSNIX has outperformed TROIX with an annualized return of 20.79%, while TROIX has yielded a comparatively lower 9.70% annualized return.

TSNIX

• 1D: 3.32%
• 1M: -3.84%
• 6M: 10.68%
• YTD: 19.63%
• 1Y: 38.36%
• 3Y*: 29.28%
• 5Y*: 14.85%
• 10Y*: 20.79%
• ALL TIME*: 21.62%

TROIX

• 1D: 2.66%
• 1M: 1.40%
• 6M: 6.52%
• YTD: 12.05%
• 1Y: 27.22%
• 3Y*: 15.82%
• 5Y*: 9.08%
• 10Y*: 9.70%
• ALL TIME*: 8.76%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
TROIX T. Rowe Price Overseas Stock Fund Class I	$0.00	$0.00	$0.00
TSNIX T. Rowe Price Science & Technology Fund I Class	$0.00	$0.00	$0.00

TSNIX vs. TROIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TSNIX T. Rowe Price Science & Technology Fund I Class	19.63%	24.45%	40.65%	53.94%	-35.29%	5.72%	46.10%	55.54%	-7.41%	39.56%
TROIX T. Rowe Price Overseas Stock Fund Class I	12.05%	31.93%	2.96%	16.60%	-15.38%	12.43%	9.33%	23.04%	-14.85%	27.25%

Correlation

The correlation between TSNIX and TROIX is 0.60, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.60
Correlation (3Y) Balances recent behavior with more history.	0.60
Correlation (5Y) Shows whether the relationship held over a longer period.	0.66
Correlation (10Y) Provides a long-term view across more market conditions.	0.69
Correlation (All Time) Calculated using the full available price history since Mar 24, 2016	0.69

The correlation between TSNIX and TROIX has been stable across timeframes, ranging from 0.60 to 0.69 - a consistent structural relationship.

Return for Risk

TSNIX vs. TROIX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

TSNIX

TSNIX Risk / Return Rank: 40
TSNIX Sharpe Ratio Rank: 39
TSNIX Sortino Ratio Rank: 35
TSNIX Omega Ratio Rank: 39
TSNIX Calmar Ratio Rank: 50
TSNIX Martin Ratio Rank: 37

TROIX

TROIX Risk / Return Rank: 64
TROIX Sharpe Ratio Rank: 67
TROIX Sortino Ratio Rank: 67
TROIX Omega Ratio Rank: 65
TROIX Calmar Ratio Rank: 60
TROIX Martin Ratio Rank: 59

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

TSNIX vs. TROIX - Risk-Adjusted Trends Comparison

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

	TSNIX	TROIX	Difference
Sharpe ratio: Return per unit of total volatility	1.18	1.62	-0.44
Sortino ratio: Return per unit of downside risk	1.62	2.33	-0.71
Omega ratio: Gain probability vs. loss probability	1.22	1.29	-0.07
Calmar ratio: Return relative to maximum drawdown	1.87	2.10	-0.23
Martin ratio: Return relative to average drawdown	5.50	7.80	-2.30

TSNIX vs. TROIX - Sharpe Ratio Comparison

The current TSNIX Sharpe Ratio is 1.18, which is comparable to the TROIX Sharpe Ratio of 1.62. The chart below compares the historical Sharpe Ratios of TSNIX and TROIX, 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

TSNIX vs. TROIX - Drawdown Comparison

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

Drawdown Indicators

	TSNIX	TROIX	Difference
Max Drawdown Largest peak-to-trough decline	-46.22%	-36.11%	-10.11%
Max Drawdown (1Y) Largest decline over 1 year	-20.15%	-12.42%	-7.73%
Max Drawdown (3Y) Largest decline over 3 years	-31.04%	-14.09%	-16.95%
Max Drawdown (5Y) Largest decline over 5 years	-46.22%	-29.37%	-16.85%
Max Drawdown (10Y) Largest decline over 10 years	-46.22%	-36.11%	-10.11%
Current Drawdown Current decline from peak	-17.50%	0.00%	-17.50%
Average Drawdown Average peak-to-trough decline	-8.73%	-6.63%	-2.10%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.74%	3.33%	+3.41%

Volatility

TSNIX vs. TROIX - Volatility Comparison

T. Rowe Price Science & Technology Fund I Class (TSNIX) has a higher volatility of 11.29% compared to T. Rowe Price Overseas Stock Fund Class I (TROIX) at 4.62%. This indicates that TSNIX's price experiences larger fluctuations and is considered to be riskier than TROIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TSNIX	TROIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	11.29%	4.62%	+6.67%
Volatility (6M) Calculated over the trailing 6-month period	28.30%	13.88%	+14.42%
Volatility (1Y) Calculated over the trailing 1-year period	31.91%	16.11%	+15.80%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	29.37%	16.20%	+13.17%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.65%	16.68%	+8.97%

TSNIX vs. TROIX - Expense Ratio Comparison

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

Dividends

TSNIX vs. TROIX - Dividend Comparison

TSNIX's dividend yield for the trailing twelve months is around 9.75%, more than TROIX's 1.92% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
TROIX T. Rowe Price Overseas Stock Fund Class I	1.92%	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	9.75%	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 TSNIX and TROIX in my portfolio?

TSNIX and TROIX have a correlation of 0.60, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TSNIX or TROIX?

TSNIX has higher volatility (11.29%) compared to TROIX (4.62%). In terms of maximum drawdown, TSNIX dropped -46.22% vs TROIX's -36.11%.

Which has better risk-adjusted returns?

TROIX currently has the higher Sharpe Ratio (1.62 vs 1.18), 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.