CSEIX vs. PRSCX

Last updated Jun 5, 2026

CSEIX (Cohen & Steers Real Estate Securities Fund, Inc.) and PRSCX (T. Rowe Price Science And Technology Fund) are both mutual funds - CSEIX is a REIT fund managed by T. Rowe Price, while PRSCX is a Technology Equities fund managed by T. Rowe Price. Over the past 10 years, CSEIX returned 6.87%/yr vs 23.56%/yr for PRSCX. At a 0.45 correlation, their price movements are largely independent. CSEIX charges 1.10%/yr vs 0.84%/yr for PRSCX.

Performance

CSEIX vs. PRSCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Cohen & Steers Real Estate Securities Fund, Inc. (CSEIX) 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, CSEIX achieves a 10.50% return, which is significantly lower than PRSCX's 41.44% return. Over the past 10 years, CSEIX has underperformed PRSCX with an annualized return of 6.87%, while PRSCX has yielded a comparatively higher 23.56% annualized return.

CSEIX

• 1D: -0.17%
• 1M: -1.45%
• YTD: 10.50%
• 6M: 9.76%
• 1Y: 11.23%
• 3Y*: 10.57%
• 5Y*: 3.49%
• 10Y*: 6.87%

PRSCX

• 1D: 0.02%
• 1M: 18.11%
• YTD: 41.44%
• 6M: 38.21%
• 1Y: 82.59%
• 3Y*: 40.31%
• 5Y*: 18.36%
• 10Y*: 23.56%

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

CSEIX vs. PRSCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CSEIX Cohen & Steers Real Estate Securities Fund, Inc.	10.50%	4.01%	6.50%	12.81%	-26.47%	41.29%	-1.99%	31.50%	-4.52%	7.79%
PRSCX T. Rowe Price Science And Technology Fund	41.44%	24.28%	40.49%	53.77%	-35.40%	5.83%	45.94%	53.80%	-7.52%	39.38%

Correlation

The correlation between CSEIX and PRSCX is 0.08, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.08
Correlation (3Y) Calculated over the trailing 3-year period	0.21
Correlation (5Y) Calculated over the trailing 5-year period	0.37
Correlation (10Y) Calculated over the trailing 10-year period	0.38
Correlation (All Time) Calculated using the full available price history since Sep 2, 1997	0.45

Over the past year, the correlation between CSEIX and PRSCX has dropped to 0.08 - well below their long-term average of 0.45, suggesting their price drivers have been diverging.

Return for Risk

CSEIX vs. PRSCX — Risk / Return Rank

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

CSEIX

CSEIX Risk / Return Rank: 13
CSEIX Sharpe Ratio Rank: 11
CSEIX Sortino Ratio Rank: 10
CSEIX Omega Ratio Rank: 11
CSEIX Calmar Ratio Rank: 17
CSEIX Martin Ratio Rank: 16

PRSCX

PRSCX Risk / Return Rank: 90
PRSCX Sharpe Ratio Rank: 97
PRSCX Sortino Ratio Rank: 88
PRSCX Omega Ratio Rank: 84
PRSCX Calmar Ratio Rank: 91
PRSCX Martin Ratio Rank: 90

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.

CSEIX vs. PRSCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Cohen & Steers Real Estate Securities Fund, Inc. (CSEIX) 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.

	CSEIX	PRSCX	Difference
Sharpe ratio: Return per unit of total volatility	0.87	3.69	-2.82
Sortino ratio: Return per unit of downside risk	1.23	4.31	-3.07
Omega ratio: Gain probability vs. loss probability	1.16	1.57	-0.42
Calmar ratio: Return relative to maximum drawdown	1.45	4.87	-3.43
Martin ratio: Return relative to average drawdown	4.28	18.17	-13.89
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CSEIX vs. PRSCX - Sharpe Ratio Comparison

The current CSEIX Sharpe Ratio is 0.87, which is lower than the PRSCX Sharpe Ratio of 3.69. The chart below compares the historical Sharpe Ratios of CSEIX 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.

Sharpe Ratios by Period

	CSEIX	PRSCX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.87	3.69	-2.82
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.19	0.67	-0.48
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.33	0.96	-0.63
Sharpe Ratio (All Time) Calculated using the full available price history	0.35	0.52	-0.17

Drawdowns

CSEIX vs. PRSCX - Drawdown Comparison

The maximum CSEIX drawdown since its inception was -72.58%, smaller than the maximum PRSCX drawdown of -85.26%. Use the drawdown chart below to compare losses from any high point for CSEIX and PRSCX.

Drawdown Indicators

	CSEIX	PRSCX	Difference
Max Drawdown Largest peak-to-trough decline	-72.58%	-85.26%	+12.68%
Max Drawdown (1Y) Largest decline over 1 year	-7.92%	-17.99%	+10.07%
Max Drawdown (3Y) Largest decline over 3 years	-17.31%	-31.06%	+13.75%
Max Drawdown (5Y) Largest decline over 5 years	-33.25%	-46.19%	+12.94%
Max Drawdown (10Y) Largest decline over 10 years	-42.75%	-46.19%	+3.44%
Current Drawdown Current decline from peak	-3.29%	0.00%	-3.29%
Average Drawdown Average peak-to-trough decline	-10.73%	-29.89%	+19.16%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.67%	4.75%	-2.08%

Volatility

CSEIX vs. PRSCX - Volatility Comparison

The current volatility for Cohen & Steers Real Estate Securities Fund, Inc. (CSEIX) is 3.79%, while T. Rowe Price Science And Technology Fund (PRSCX) has a volatility of 9.42%. This indicates that CSEIX 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

	CSEIX	PRSCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.79%	9.42%	-5.63%
Volatility (6M) Calculated over the trailing 6-month period	9.93%	19.59%	-9.66%
Volatility (1Y) Calculated over the trailing 1-year period	13.21%	23.79%	-10.58%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.86%	27.82%	-8.96%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.94%	24.80%	-3.86%

CSEIX vs. PRSCX - Expense Ratio Comparison

CSEIX has a 1.10% expense ratio, which is higher than PRSCX's 0.84% expense ratio.

Dividends

CSEIX vs. PRSCX - Dividend Comparison

CSEIX's dividend yield for the trailing twelve months is around 3.46%, less than PRSCX's 8.15% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CSEIX Cohen & Steers Real Estate Securities Fund, Inc.	3.46%	3.75%	2.72%	2.89%	7.91%	4.37%	5.48%	7.83%	3.51%	2.39%	5.87%	23.00%
PRSCX T. Rowe Price Science And Technology Fund	8.15%	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 CSEIX and PRSCX in my portfolio?

CSEIX and PRSCX have a correlation of 0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CSEIX or PRSCX?

PRSCX has higher volatility (9.42%) compared to CSEIX (3.79%). In terms of maximum drawdown, CSEIX dropped -72.58% vs PRSCX's -85.26%.

Which has better risk-adjusted returns?

PRSCX currently has the higher Sharpe Ratio (3.69 vs 0.87), 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.