TL;DR
The three major US auto parts retailers — AutoZone, O'Reilly Automotive, and Advance Auto Parts — are all publicly-traded and all common net lease tenants. Historically, all three have been investment-grade rated, but credit trajectories have diverged recently: AutoZone and O'Reilly have maintained consistent profiles, while Advance Auto Parts announced a strategic review in October 2023 amid operational challenges. For net lease investors, the three tenants are not interchangeable despite operating in the same category. This post compares credit profiles, real estate strategies, and what to underwrite on each.
Side-by-Side Credit Snapshot
All ratings should be verified directly with the agencies before relying on them in a transaction. As of recent public rating actions:
| Dimension | AutoZone (AZO) | O'Reilly (ORLY) | Advance Auto (AAP) |
|---|---|---|---|
| Listing | NYSE | NASDAQ | NYSE |
| Business model | Customer + commercial | Customer + commercial | Customer + commercial |
| Investment-grade historically | Yes | Yes | Yes |
| Recent trajectory | Stable | Stable | Turnaround |
| Number of US stores | ~7,000+ | ~6,000+ | ~4,000+ |
Numbers of stores approximate as of recent 10-K filings; verify with current SEC filings.
Credit Profiles
AutoZone
AutoZone has historically been one of the strongest retailers in the auto parts category — consistent revenue growth, strong operating margins, and a balance sheet discipline that has included significant share buybacks.
The company operates primarily in US, with additional operations in Mexico and Brazil. Its stores span customer (DIY) sales and commercial (professional technician) sales, with both segments contributing to revenue.
From a credit perspective, AutoZone has been consistently investment-grade, with agency ratings reflecting conservative financial management and strong underlying business performance.
O'Reilly Automotive
O'Reilly has shown remarkable consistency — long history of same-store sales growth, expanding margins, and steady store-count growth. The company operates in the US with a strong concentration in the South and Midwest historically, expanding into additional markets over time.
O'Reilly's commercial (professional technician) business has historically been among the strongest in the category. Operating margins have consistently been high.
Like AutoZone, O'Reilly has been consistently investment-grade rated with strong agency commentary.
Advance Auto Parts
Advance Auto Parts has had a more challenging recent history. The company announced in October 2023 a strategic review that included operational changes and structural considerations, reflecting multiple years of underperformance relative to AutoZone and O'Reilly.
Key developments:
- October 2023 announcement of strategic review
- 2023-2024 leadership changes
- Ongoing operational initiatives (store consolidation, pricing, inventory management)
The credit story here is more nuanced than for AutoZone or O'Reilly. While Advance Auto Parts has been investment-grade rated historically, agency commentary has included pressure reflecting operational challenges. Any net lease underwriting on Advance Auto Parts should incorporate the current state of the strategic review and updated agency ratings.
Real Estate Strategies
All three companies pursue similar real estate strategies at a high level:
Typical Store Format
- Building size: 6,000-8,000 SF for customer-focused stores; 15,000-20,000+ SF for commercial-focused hub-and-spoke distribution stores
- Lot size: 0.5-1.0 acres for typical retail; larger for distribution-style locations
- Parking: 30-50 spaces typical
- Drive-thru: limited; commercial loading docks on commercial-focused stores
Lease Structures
All three commonly structure real estate as:
- Fee simple triple-net leases (corporate-operated, corporate-guaranteed)
- Ground leases (with the parent company paying ground rent)
- Build-to-suit (developer builds to spec, parent signs long lease)
Typical lease terms across the three:
- 20-year initial lease terms are common; some shorter (10-15 year) leases exist
- 4-5 renewal options of 5 years each
- Fixed rent escalations (often 10% every 5 years, varying by vintage)
- Corporate guaranty from the parent company (AutoZone Inc., O'Reilly Automotive Inc., or Advance Auto Parts Inc.)
Portfolio Management
Net lease investors see these companies' real estate through the lens of:
- New store development (growth capital flowing into new real estate)
- Existing portfolio operational management
- Occasional consolidation (older stores closing as new formats open nearby)
AutoZone and O'Reilly have been net growers of stores in recent years. Advance Auto Parts has been more focused on portfolio optimization than expansion during the strategic review period.
Unit Economics Comparison
Auto parts retailers as a category have structural similarities:
- Both customer and commercial sales channels (retail to DIY consumers + wholesale to professional technicians)
- Inventory-intensive business (thousands of SKUs per store, requiring substantial working capital)
- Supplier relationships (many parts are unique to specific vehicle makes/models, creating supplier negotiation complexity)
- Margin profiles that have historically been healthy — auto parts has been one of the more attractive retail categories
Where the three diverge:
- Commercial vs customer mix (O'Reilly is often cited as having the strongest commercial focus)
- Geographic concentration (AutoZone has more international presence; O'Reilly primarily domestic; Advance Auto Parts primarily domestic with East Coast concentration)
- Store productivity (AutoZone and O'Reilly have generally shown higher AUV than Advance Auto Parts in recent years)
Underwriting Framework
For any auto parts retailer net lease deal:
1. Confirm the specific tenant entity
Is it the parent company (AutoZone Inc., O'Reilly Automotive Inc., Advance Auto Parts Inc.) or a named subsidiary? All three companies primarily use parent-level guaranties on real estate.
2. Verify current credit rating
Ratings change. The directional profile (investment-grade) has been consistent historically but individual agency actions can move ratings within or across rating tiers.
3. Lease structure and term
Ground lease vs fee simple lease; remaining initial term; renewal option economics.
4. Location quality
Trade area demographics, competing auto parts stores (AutoZone, O'Reilly, Advance Auto Parts often cluster in markets — consolidation risk if the specific brand closes), vehicle density.
5. Tenant-specific considerations
- For AutoZone deals: straightforward investment-grade underwriting; verify current rating
- For O'Reilly deals: straightforward investment-grade underwriting; verify current rating
- For Advance Auto Parts deals: additional layer of analysis around the strategic review, store consolidation risk, potential closure status, and rating evolution
Specific Considerations for Advance Auto Parts
Given the 2023 strategic review and subsequent operational changes, Advance Auto Parts net lease deals warrant specific attention:
Store consolidation risk. Advance Auto Parts has conducted store portfolio review as part of the strategic initiative. Underperforming or overlapping locations may be closed at lease expiration.
Current rating status. Verify current agency ratings — agencies may have updated ratings or outlooks since the strategic review began.
Lease term and optionality. Longer remaining terms with strong corporate guaranty insulate from short-term operational volatility. Shorter terms or option-dependent leases carry more re-leasing risk.
Market position. Strong Advance Auto Parts locations (high volume, healthy trade area, no consolidation risk) remain attractive deals. Weaker locations require wider cap rates to reflect uncertainty.
Cap Rate Implications
All three tenants trade in a similar cap rate range historically — investment-grade retail credit on standard net lease terms — with minor differentiation based on:
- Agency rating differences (AutoZone and O'Reilly typically at the tighter end; Advance Auto Parts slightly wider historically)
- Location quality (core markets tighter than tertiary)
- Lease term (longer term tighter than shorter)
- Specific deal factors
In the current market, expect:
- AutoZone corporate-guaranteed deals to price tightly within the investment-grade retail category
- O'Reilly corporate-guaranteed deals to price similarly tightly
- Advance Auto Parts corporate-guaranteed deals to price slightly wider, reflecting the turnaround context and greater rating volatility
Comparing to Other Retail Categories
Auto parts retailers generally price tighter than:
- Discount retailers (Dollar General, Dollar Tree, Family Dollar) — comparable or tighter in many cases
- Drug store chains (CVS, Walgreens) — auto parts often tighter due to less sector-specific disruption
And similarly to or slightly wider than:
- Home improvement (Home Depot, Lowe's) — major retailers with similar credit profiles
- Big-box retailers (Best Buy, etc.)
The Bottom Line
The three major US auto parts retailers represent a historically stable category for net lease investors — all three publicly-traded, investment-grade rated, and reliable long-term tenants. Recent divergence in operational performance means they're no longer interchangeable: AutoZone and O'Reilly remain the strongest credit stories, while Advance Auto Parts requires additional diligence reflecting the turnaround context.
For net lease brokers, understanding the category's three major players — and the current state of each — lets you quote specific deals accurately rather than relying on category-average cap rate assumptions.
Editorial disclaimer. This article is published by Trestle Research for informational purposes only. It is not investment, tax, or legal advice. Credit ratings and corporate performance change; verify current ratings and operational status directly with the rating agencies and the companies' SEC filings before relying on any provision.
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