ORLY vs. AAP

Last updated Jun 18, 2026

ORLY (O'Reilly Automotive, Inc.) and AAP (Advance Auto Parts, Inc.) are both stocks. Both operate in the Specialty Retail industry within the Consumer Cyclical sector. Over the past 10 years, ORLY returned 17.70%/yr vs -8.07%/yr for AAP. A 0.55 correlation means they provide meaningful diversification when combined.

Performance

ORLY vs. AAP - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in O'Reilly Automotive, Inc. (ORLY) and Advance Auto Parts, Inc. (AAP). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ORLY achieves a -3.08% return, which is significantly lower than AAP's 49.38% return. Over the past 10 years, ORLY has outperformed AAP with an annualized return of 17.70%, while AAP has yielded a comparatively lower -8.07% annualized return.

ORLY

• 1D: -2.51%
• 1M: -3.64%
• YTD: -3.08%
• 6M: -4.79%
• 1Y: -0.45%
• 3Y*: 13.00%
• 5Y*: 19.81%
• 10Y*: 17.70%

AAP

• 1D: -3.76%
• 1M: 14.82%
• YTD: 49.38%
• 6M: 37.19%
• 1Y: 22.84%
• 3Y*: -3.79%
• 5Y*: -19.52%
• 10Y*: -8.07%

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

ORLY vs. AAP - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ORLY O'Reilly Automotive, Inc.	-3.08%	15.38%	24.81%	12.56%	19.51%	56.05%	3.27%	27.28%	43.15%	-13.60%
AAP Advance Auto Parts, Inc.	49.38%	-15.01%	-21.10%	-57.62%	-36.50%	54.68%	-0.90%	1.87%	58.22%	-40.93%

Correlation

The correlation between ORLY and AAP is 0.42, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.42
Correlation (3Y) Calculated over the trailing 3-year period	0.36
Correlation (5Y) Calculated over the trailing 5-year period	0.45
Correlation (10Y) Calculated over the trailing 10-year period	0.56
Correlation (All Time) Calculated using the full available price history since Nov 29, 2001	0.55

The correlation between ORLY and AAP shifts across timeframes, from 0.36 (3 years) to 0.56 (10 years), reflecting how their relationship changes across market environments.

Fundamentals

EPS ORLY : $3.06 AAP : $1.96
PE Ratio ORLY : 28.90 AAP : 29.59
PS Ratio ORLY : 4.13 AAP : 0.44
Total Revenue (TTM) ORLY : $18.21B AAP : $6.02B
Gross Profit (TTM) ORLY : $9.40B AAP : $2.62B
EBITDA (TTM) ORLY : $3.96B AAP : $592.00M

Return for Risk

ORLY vs. AAP — Risk / Return Rank

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

ORLY

ORLY Risk / Return Rank: 38
ORLY Sharpe Ratio Rank: 41
ORLY Sortino Ratio Rank: 34
ORLY Omega Ratio Rank: 34
ORLY Calmar Ratio Rank: 41
ORLY Martin Ratio Rank: 40

AAP

AAP Risk / Return Rank: 55
AAP Sharpe Ratio Rank: 57
AAP Sortino Ratio Rank: 55
AAP Omega Ratio Rank: 53
AAP Calmar Ratio Rank: 55
AAP 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.

ORLY vs. AAP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for O'Reilly Automotive, Inc. (ORLY) and Advance Auto Parts, Inc. (AAP). 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.

	ORLY	AAP	Difference
Sharpe ratio: Return per unit of total volatility	-0.02	0.43	-0.45
Sortino ratio: Return per unit of downside risk	0.14	1.00	-0.86
Omega ratio: Gain probability vs. loss probability	1.02	1.12	-0.10
Calmar ratio: Return relative to maximum drawdown	-0.02	0.55	-0.58
Martin ratio: Return relative to average drawdown	-0.04	1.15	-1.19

ORLY vs. AAP - Sharpe Ratio Comparison

The current ORLY Sharpe Ratio is -0.02, which is lower than the AAP Sharpe Ratio of 0.43. The chart below compares the historical Sharpe Ratios of ORLY and AAP, 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

ORLY vs. AAP - Drawdown Comparison

The maximum ORLY drawdown since its inception was -65.42%, smaller than the maximum AAP drawdown of -86.41%. Use the drawdown chart below to compare losses from any high point for ORLY and AAP.

Drawdown Indicators

	ORLY	AAP	Difference
Max Drawdown Largest peak-to-trough decline	-65.42%	-86.41%	+20.99%
Max Drawdown (1Y) Largest decline over 1 year	-20.02%	-41.44%	+21.42%
Max Drawdown (3Y) Largest decline over 3 years	-20.02%	-64.25%	+44.23%
Max Drawdown (5Y) Largest decline over 5 years	-23.03%	-86.41%	+63.38%
Max Drawdown (10Y) Largest decline over 10 years	-42.00%	-86.41%	+44.41%
Current Drawdown Current decline from peak	-18.01%	-73.24%	+55.23%
Average Drawdown Average peak-to-trough decline	-10.78%	-23.82%	+13.04%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.92%	19.90%	-8.98%

Volatility

ORLY vs. AAP - Volatility Comparison

The current volatility for O'Reilly Automotive, Inc. (ORLY) is 5.84%, while Advance Auto Parts, Inc. (AAP) has a volatility of 17.99%. This indicates that ORLY experiences smaller price fluctuations and is considered to be less risky than AAP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ORLY	AAP	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.84%	17.99%	-12.15%
Volatility (6M) Calculated over the trailing 6-month period	17.94%	37.00%	-19.06%
Volatility (1Y) Calculated over the trailing 1-year period	22.83%	53.50%	-30.67%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.67%	53.05%	-30.38%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.54%	45.10%	-18.56%

Dividends

ORLY vs. AAP - Dividend Comparison

ORLY has not paid dividends to shareholders, while AAP's dividend yield for the trailing twelve months is around 1.72%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AAP Advance Auto Parts, Inc.	1.72%	2.54%	2.11%	3.28%	4.08%	1.35%	0.63%	0.15%	0.15%	0.24%	0.14%	0.16%
ORLY O'Reilly Automotive, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both ORLY and AAP in my portfolio?

ORLY and AAP have a correlation of 0.42, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ORLY or AAP?

AAP has higher volatility (17.99%) compared to ORLY (5.84%). In terms of maximum drawdown, ORLY dropped -65.42% vs AAP's -86.41%.

Which has better risk-adjusted returns?

AAP currently has the higher Sharpe Ratio (0.43 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.