FIX vs. USO

Last updated Jun 4, 2026

FIX (Comfort Systems USA, Inc.) is a stock, while USO (United States Oil Fund LP) is Oil & Gas fund tracking the Front Month Light Sweet Crude Oil. Over the past 10 years, FIX returned 50.88%/yr vs 4.07%/yr for USO. At a 0.19 correlation, their price movements are largely independent.

Performance

FIX vs. USO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Comfort Systems USA, Inc. (FIX) and United States Oil Fund LP (USO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FIX achieves a 98.41% return, which is significantly lower than USO's 103.67% return. Over the past 10 years, FIX has outperformed USO with an annualized return of 50.88%, while USO has yielded a comparatively lower 4.07% annualized return.

FIX

• 1D: -1.76%
• 1M: -2.18%
• YTD: 98.41%
• 6M: 95.06%
• 1Y: 273.24%
• 3Y*: 129.39%
• 5Y*: 85.41%
• 10Y*: 50.88%

USO

• 1D: 2.62%
• 1M: -4.57%
• YTD: 103.67%
• 6M: 99.35%
• 1Y: 101.55%
• 3Y*: 29.98%
• 5Y*: 24.41%
• 10Y*: 4.07%

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

FIX vs. USO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FIX Comfort Systems USA, Inc.	98.41%	120.86%	106.89%	79.62%	16.98%	88.98%	6.73%	15.07%	0.73%	32.13%
USO United States Oil Fund LP	103.67%	-8.46%	13.35%	-4.94%	28.97%	64.68%	-67.79%	32.61%	-19.57%	2.47%

Correlation

The correlation between FIX and USO is -0.11, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.11
Correlation (3Y) Calculated over the trailing 3-year period	-0.01
Correlation (5Y) Calculated over the trailing 5-year period	0.07
Correlation (10Y) Calculated over the trailing 10-year period	0.12
Correlation (All Time) Calculated using the full available price history since Apr 11, 2006	0.19

The correlation between FIX and USO shifts across timeframes, from -0.11 (1 year) to 0.19 (all time), reflecting how their relationship changes across market environments.

Return for Risk

FIX vs. USO — Risk / Return Rank

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

FIX

FIX Risk / Return Rank: 98
FIX Sharpe Ratio Rank: 99
FIX Sortino Ratio Rank: 98
FIX Omega Ratio Rank: 97
FIX Calmar Ratio Rank: 99
FIX Martin Ratio Rank: 99

USO

USO Risk / Return Rank: 66
USO Sharpe Ratio Rank: 69
USO Sortino Ratio Rank: 60
USO Omega Ratio Rank: 61
USO Calmar Ratio Rank: 87
USO Martin Ratio Rank: 54

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.

FIX vs. USO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Comfort Systems USA, Inc. (FIX) and United States Oil Fund LP (USO). 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.

	FIX	USO	Difference
Sharpe ratio: Return per unit of total volatility	5.18	2.31	+2.87
Sortino ratio: Return per unit of downside risk	5.01	2.89	+2.12
Omega ratio: Gain probability vs. loss probability	1.67	1.38	+0.29
Calmar ratio: Return relative to maximum drawdown	19.99	5.01	+14.98
Martin ratio: Return relative to average drawdown	62.95	9.42	+53.53
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FIX vs. USO - Sharpe Ratio Comparison

The current FIX Sharpe Ratio is 5.18, which is higher than the USO Sharpe Ratio of 2.31. The chart below compares the historical Sharpe Ratios of FIX and USO, 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

	FIX	USO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	5.18	2.31	+2.87
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.93	0.68	+1.25
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	1.21	0.10	+1.10
Sharpe Ratio (All Time) Calculated using the full available price history	0.40	-0.18	+0.58

Drawdowns

FIX vs. USO - Drawdown Comparison

The maximum FIX drawdown since its inception was -93.36%, roughly equal to the maximum USO drawdown of -98.19%. Use the drawdown chart below to compare losses from any high point for FIX and USO.

Drawdown Indicators

	FIX	USO	Difference
Max Drawdown Largest peak-to-trough decline	-93.36%	-98.19%	+4.83%
Max Drawdown (1Y) Largest decline over 1 year	-13.77%	-20.39%	+6.62%
Max Drawdown (3Y) Largest decline over 3 years	-46.05%	-26.05%	-20.00%
Max Drawdown (5Y) Largest decline over 5 years	-46.05%	-36.23%	-9.82%
Max Drawdown (10Y) Largest decline over 10 years	-49.68%	-86.75%	+37.07%
Current Drawdown Current decline from peak	-9.38%	-85.01%	+75.63%
Average Drawdown Average peak-to-trough decline	-38.09%	-75.30%	+37.21%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.36%	10.82%	-6.46%

Volatility

FIX vs. USO - Volatility Comparison

The current volatility for Comfort Systems USA, Inc. (FIX) is 12.90%, while United States Oil Fund LP (USO) has a volatility of 14.87%. This indicates that FIX experiences smaller price fluctuations and is considered to be less risky than USO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FIX	USO	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.90%	14.87%	-1.97%
Volatility (6M) Calculated over the trailing 6-month period	37.41%	38.23%	-0.82%
Volatility (1Y) Calculated over the trailing 1-year period	53.25%	44.20%	+9.05%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	44.43%	36.06%	+8.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	42.33%	39.00%	+3.33%

Dividends

FIX vs. USO - Dividend Comparison

FIX's dividend yield for the trailing twelve months is around 0.14%, while USO has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FIX Comfort Systems USA, Inc.	0.14%	0.21%	0.28%	0.41%	0.49%	0.49%	0.81%	0.79%	0.76%	0.68%	0.83%	0.88%
USO United States Oil Fund LP	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both FIX and USO in my portfolio?

FIX and USO have a correlation of -0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FIX or USO?

USO has higher volatility (14.87%) compared to FIX (12.90%). In terms of maximum drawdown, FIX dropped -93.36% vs USO's -98.19%.

Which has better risk-adjusted returns?

FIX currently has the higher Sharpe Ratio (5.18 vs 2.31), 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.