PRIM vs. VOO

Last updated Jul 14, 2026

PRIM (Primoris Services Corporation) is a stock, while VOO (Vanguard S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, PRIM returned 17.09%/yr vs 15.16%/yr for VOO. A 0.51 correlation means they provide meaningful diversification when combined.

Performance

PRIM vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Primoris Services Corporation (PRIM) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PRIM achieves a -31.25% return, which is significantly lower than VOO's 10.45% return. Over the past 10 years, PRIM has outperformed VOO with an annualized return of 17.09%, while VOO has yielded a comparatively lower 15.16% annualized return.

PRIM

• 1D: -1.59%
• 1M: -13.54%
• 6M: -36.43%
• YTD: -31.25%
• 1Y: -1.34%
• 3Y*: 42.26%
• 5Y*: 25.06%
• 10Y*: 17.09%

VOO

• 1D: -0.77%
• 1M: 1.25%
• 6M: 8.34%
• YTD: 10.45%
• 1Y: 21.53%
• 3Y*: 20.16%
• 5Y*: 13.01%
• 10Y*: 15.16%

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

PRIM vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PRIM Primoris Services Corporation	-31.25%	63.08%	131.14%	52.60%	-7.46%	-12.38%	25.81%	17.62%	-28.93%	20.39%
VOO Vanguard S&P 500 ETF	10.45%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Correlation

The correlation between PRIM and VOO is 0.48, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.48
Correlation (3Y) Calculated over the trailing 3-year period	0.54
Correlation (5Y) Calculated over the trailing 5-year period	0.53
Correlation (10Y) Calculated over the trailing 10-year period	0.49
Correlation (All Time) Calculated using the full available price history since Sep 9, 2010	0.51

The correlation between PRIM and VOO has been stable across timeframes, ranging from 0.48 to 0.54 - a consistent structural relationship.

Return for Risk

PRIM vs. VOO — Risk / Return Rank

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

PRIM

PRIM Risk / Return Rank: 48
PRIM Sharpe Ratio Rank: 45
PRIM Sortino Ratio Rank: 48
PRIM Omega Ratio Rank: 56
PRIM Calmar Ratio Rank: 45
PRIM Martin Ratio Rank: 44

VOO

VOO Risk / Return Rank: 66
VOO Sharpe Ratio Rank: 66
VOO Sortino Ratio Rank: 65
VOO Omega Ratio Rank: 66
VOO Calmar Ratio Rank: 61
VOO Martin Ratio Rank: 72

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.

PRIM vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Primoris Services Corporation (PRIM) and Vanguard S&P 500 ETF (VOO). 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.

	PRIM	VOO	Difference
Sharpe ratio: Return per unit of total volatility	-0.02	1.73	-1.75
Sortino ratio: Return per unit of downside risk	0.56	2.39	-1.83
Omega ratio: Gain probability vs. loss probability	1.11	1.31	-0.20
Calmar ratio: Return relative to maximum drawdown	-0.02	2.43	-2.45
Martin ratio: Return relative to average drawdown	-0.06	10.60	-10.66

PRIM vs. VOO - Sharpe Ratio Comparison

The current PRIM Sharpe Ratio is -0.02, which is lower than the VOO Sharpe Ratio of 1.73. The chart below compares the historical Sharpe Ratios of PRIM and VOO, 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

PRIM vs. VOO - Drawdown Comparison

The maximum PRIM drawdown since its inception was -68.51%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for PRIM and VOO.

Drawdown Indicators

	PRIM	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-68.51%	-33.99%	-34.52%
Max Drawdown (1Y) Largest decline over 1 year	-58.14%	-8.90%	-49.24%
Max Drawdown (3Y) Largest decline over 3 years	-58.14%	-18.69%	-39.45%
Max Drawdown (5Y) Largest decline over 5 years	-58.14%	-24.52%	-33.62%
Max Drawdown (10Y) Largest decline over 10 years	-65.73%	-33.99%	-31.74%
Current Drawdown Current decline from peak	-57.97%	-1.11%	-56.86%
Average Drawdown Average peak-to-trough decline	-22.89%	-3.68%	-19.21%
Ulcer Index Depth and duration of drawdowns from previous peaks	22.14%	2.04%	+20.10%

Volatility

PRIM vs. VOO - Volatility Comparison

Primoris Services Corporation (PRIM) has a higher volatility of 30.50% compared to Vanguard S&P 500 ETF (VOO) at 4.16%. This indicates that PRIM's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PRIM	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	30.50%	4.16%	+26.34%
Volatility (6M) Calculated over the trailing 6-month period	86.39%	9.97%	+76.42%
Volatility (1Y) Calculated over the trailing 1-year period	77.88%	12.53%	+65.35%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	49.59%	16.93%	+32.66%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	46.17%	18.00%	+28.17%

Dividends

PRIM vs. VOO - Dividend Comparison

PRIM's dividend yield for the trailing twelve months is around 0.38%, less than VOO's 1.07% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PRIM Primoris Services Corporation	0.38%	0.26%	0.34%	0.72%	1.09%	1.00%	0.87%	1.08%	1.25%	0.83%	0.97%	0.93%
VOO Vanguard S&P 500 ETF	1.07%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both PRIM and VOO in my portfolio?

PRIM and VOO have a correlation of 0.48, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PRIM or VOO?

PRIM has higher volatility (30.50%) compared to VOO (4.16%). In terms of maximum drawdown, PRIM dropped -68.51% vs VOO's -33.99%.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (1.73 vs -0.02), 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.