POMIX vs. PRSCX

Last updated Jun 4, 2026

POMIX (T. Rowe Price Total Equity Market Index Fund) and PRSCX (T. Rowe Price Science And Technology Fund) are both mutual funds - POMIX is a Large Cap Blend Equities fund managed by T. Rowe Price, while PRSCX is a Technology Equities fund managed by T. Rowe Price. Over the past 10 years, POMIX returned 14.74%/yr vs 23.56%/yr for PRSCX. Their correlation of 0.85 suggests significant overlap in exposure. POMIX charges 0.20%/yr vs 0.84%/yr for PRSCX.

Performance

POMIX vs. PRSCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T. Rowe Price Total Equity Market Index Fund (POMIX) 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, POMIX achieves a 12.01% return, which is significantly lower than PRSCX's 41.41% return. Over the past 10 years, POMIX has underperformed PRSCX with an annualized return of 14.74%, while PRSCX has yielded a comparatively higher 23.56% annualized return.

POMIX

• 1D: 0.24%
• 1M: 5.73%
• YTD: 12.01%
• 6M: 11.93%
• 1Y: 29.15%
• 3Y*: 22.30%
• 5Y*: 13.02%
• 10Y*: 14.74%

PRSCX

• 1D: 2.32%
• 1M: 21.76%
• YTD: 41.41%
• 6M: 38.56%
• 1Y: 83.87%
• 3Y*: 40.30%
• 5Y*: 18.72%
• 10Y*: 23.56%

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

POMIX vs. PRSCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
POMIX T. Rowe Price Total Equity Market Index Fund	12.01%	17.09%	23.48%	26.38%	-19.64%	25.39%	19.82%	30.95%	-5.57%	19.09%
PRSCX T. Rowe Price Science And Technology Fund	41.41%	24.28%	40.49%	53.77%	-35.40%	5.83%	45.94%	53.80%	-7.52%	39.38%

Correlation

The correlation between POMIX and PRSCX is 0.82, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.82
Correlation (3Y) Calculated over the trailing 3-year period	0.86
Correlation (5Y) Calculated over the trailing 5-year period	0.86
Correlation (10Y) Calculated over the trailing 10-year period	0.84
Correlation (All Time) Calculated using the full available price history since Jan 5, 1999	0.85

The correlation between POMIX and PRSCX has been stable across timeframes, ranging from 0.82 to 0.86 - a consistent structural relationship.

Return for Risk

POMIX vs. PRSCX — Risk / Return Rank

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

POMIX

POMIX Risk / Return Rank: 77
POMIX Sharpe Ratio Rank: 79
POMIX Sortino Ratio Rank: 74
POMIX Omega Ratio Rank: 69
POMIX Calmar Ratio Rank: 78
POMIX Martin Ratio Rank: 85

PRSCX

PRSCX Risk / Return Rank: 91
PRSCX Sharpe Ratio Rank: 98
PRSCX Sortino Ratio Rank: 90
PRSCX Omega Ratio Rank: 86
PRSCX Calmar Ratio Rank: 92
PRSCX 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.

POMIX vs. PRSCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Total Equity Market Index Fund (POMIX) 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.

	POMIX	PRSCX	Difference
Sharpe ratio: Return per unit of total volatility	2.58	3.79	-1.21
Sortino ratio: Return per unit of downside risk	3.60	4.40	-0.79
Omega ratio: Gain probability vs. loss probability	1.46	1.59	-0.12
Calmar ratio: Return relative to maximum drawdown	3.53	5.02	-1.49
Martin ratio: Return relative to average drawdown	16.30	18.70	-2.41
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

POMIX vs. PRSCX - Sharpe Ratio Comparison

The current POMIX Sharpe Ratio is 2.58, which is lower than the PRSCX Sharpe Ratio of 3.79. The chart below compares the historical Sharpe Ratios of POMIX 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

	POMIX	PRSCX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.58	3.79	-1.21
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.75	0.68	+0.07
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.80	0.96	-0.15
Sharpe Ratio (All Time) Calculated using the full available price history	0.45	0.52	-0.08

Drawdowns

POMIX vs. PRSCX - Drawdown Comparison

The maximum POMIX drawdown since its inception was -55.54%, smaller than the maximum PRSCX drawdown of -85.26%. Use the drawdown chart below to compare losses from any high point for POMIX and PRSCX.

Drawdown Indicators

	POMIX	PRSCX	Difference
Max Drawdown Largest peak-to-trough decline	-55.54%	-85.26%	+29.72%
Max Drawdown (1Y) Largest decline over 1 year	-8.83%	-17.99%	+9.16%
Max Drawdown (3Y) Largest decline over 3 years	-19.67%	-31.06%	+11.39%
Max Drawdown (5Y) Largest decline over 5 years	-25.56%	-46.19%	+20.63%
Max Drawdown (10Y) Largest decline over 10 years	-35.05%	-46.19%	+11.14%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-10.65%	-29.89%	+19.24%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.88%	4.75%	-2.87%

Volatility

POMIX vs. PRSCX - Volatility Comparison

The current volatility for T. Rowe Price Total Equity Market Index Fund (POMIX) is 2.92%, while T. Rowe Price Science And Technology Fund (PRSCX) has a volatility of 9.43%. This indicates that POMIX 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

	POMIX	PRSCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.92%	9.43%	-6.51%
Volatility (6M) Calculated over the trailing 6-month period	9.69%	19.91%	-10.22%
Volatility (1Y) Calculated over the trailing 1-year period	12.08%	23.82%	-11.74%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.54%	27.82%	-10.28%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.52%	24.81%	-6.29%

POMIX vs. PRSCX - Expense Ratio Comparison

POMIX has a 0.20% expense ratio, which is lower than PRSCX's 0.84% expense ratio.

Dividends

POMIX vs. PRSCX - Dividend Comparison

POMIX's dividend yield for the trailing twelve months is around 1.90%, less than PRSCX's 8.15% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
POMIX T. Rowe Price Total Equity Market Index Fund	1.90%	2.13%	1.76%	1.46%	1.49%	1.53%	1.55%	1.91%	2.89%	0.20%	2.41%	2.08%
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 POMIX and PRSCX in my portfolio?

POMIX and PRSCX have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, POMIX or PRSCX?

PRSCX has higher volatility (9.43%) compared to POMIX (2.92%). In terms of maximum drawdown, POMIX dropped -55.54% vs PRSCX's -85.26%.

Which has better risk-adjusted returns?

PRSCX currently has the higher Sharpe Ratio (3.79 vs 2.58), 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.