O’Reilly Auto Parts and Advance Auto Parts sold the same products from similar boxes on the same corridors for decades, and until 2025 both cleared the investment grade threshold. They no longer do. O’Reilly carries BBB/Baa1 with stable outlooks and keeps opening roughly 200 stores a year. Advance was cut to BB by S&P and Ba3 by Moody’s in July 2025, is closing more than 700 stores, and now trades at 6.5–8.0% cap rates against O’Reilly’s 5.75–6.75%. The two tenants have become the auto parts sector’s cleanest live lesson in what happens on each side of the BBB‑/Baa3 cutoff.
This comparison works through both tenants the way the investment grade guide recommends underwriting any net lease credit: rating first, then lease structure, then the real estate itself. For a fallen angel like Advance, that order matters more than usual, because the lease structures still look identical on paper while the credit behind them has diverged sharply.
O’Reilly vs Advance Auto Parts: Head-to-Head Comparison
| Metric | O’Reilly Auto Parts | Advance Auto Parts |
|---|---|---|
| Parent Company | O’Reilly Automotive, Inc. (ORLY) | Advance Auto Parts, Inc. (AAP) |
| S&P / Moody’s Rating | BBB / Baa1 (both stable) | BB / Ba3 (both stable, below investment grade) |
| US Locations | ~6,100 and growing (~200/year) | ~4,800 and shrinking (700+ closures underway) |
| Cap Rate Range (2026) | 5.75% – 6.75% | 6.5% – 8.0% |
| Typical Lease Term | 15 years | 15 years |
| Escalations | ~10% every 5 years | 10% every 5 years |
| Guarantee | Corporate | Corporate |
| Typical Building | 7,000–7,500 SF on 0.5–1.0 acres | Similar prototype, corridor sites |
| Typical Price Range | $1.5M – $3.2M | $1.2M – $2.5M |
| Revenue | $16.3B (FY2024) | ~$9.0B (FY2025, post-Worldpac) |
Credit Rating: One Tenant Above the Line, One Below It
O’Reilly is the strongest credit in auto parts retail. S&P rates O’Reilly Automotive BBB and Moody’s rates it Baa1, both stable, consistent since 2024 and verified against Q2 2026 tenant credit data. The rating rests on market leadership, a dual DIY-and-professional customer model, consistent same-store sales growth, and disciplined capital allocation that funds roughly 200 new stores a year without stressing the balance sheet. Its full credit profile is on the O’Reilly Auto Parts credit rating and cap rate page.
Advance is a fallen angel. On July 24, 2025, S&P cut it to BB and Moody’s cut it to Ba3 on expected leverage near six times EBITDA, pushing it below the BBB‑/Baa3 threshold that separates investment grade from high yield. The forced sale of Worldpac removed the company’s highest-margin segment, roughly a fifth of pre-sale EBITDA, and free cash flow was projected negative through 2026. Both agencies revised their outlooks to stable in mid-2026 as the turnaround gained footing, but the ratings remain squarely below the line. The full risk picture is on the Advance Auto Parts credit rating and cap rate page, and both tenants sit in the credit tenant ratings database.
| Rating Band | S&P / Moody’s | Where They Sit |
|---|---|---|
| Strong investment grade | BBB+ / Baa1 and above | O’Reilly (Moody’s Baa1) |
| Investment grade | BBB / Baa2 | O’Reilly (S&P BBB) |
| Investment grade cutoff | BBB‑ / Baa3 | The line that matters |
| High yield | BB / Ba3 | Advance Auto Parts (since July 2025) |
The underwriting point: a downgrade below the cutoff does not change a single word of an existing lease, but it changes who will buy the property from you, what lenders will advance against it, and what exit cap rate to model. The 75 to 125 basis points of extra yield on Advance is not free money; it is the market’s price for those three changes.
Cap Rates: What 150 Basis Points of Credit Spread Buys
O’Reilly’s 5.75–6.75% range is classic investment grade auto parts pricing: premium corridor locations with long remaining term trade at the tight end, secondary markets and shorter terms at the wide end. Product is consistently available because the company keeps building, and the active buyer pool includes 1031 exchangers, funds, and lenders comfortable with the credit.
Advance’s 6.5–8.0% range starts where O’Reilly’s ends. The overlap zone around 6.5–6.75% is worth studying: at that yield a buyer can own the BBB/Baa1 tenant on a weaker piece of real estate or the BB/Ba3 tenant on a strong one. Below-investment-grade pricing on Advance also varies far more with property-level factors, because buyers are underwriting which stores survive the 700-store rationalization. A high-volume Advance on a dominant corridor is a very different asset from a marginal store on the closure bubble, and the cap rate spread inside the Advance range reflects exactly that triage.
Lease Structure: Identical Paper, Different Probabilities
Both tenants write 15-year corporate-guaranteed NNN leases with roughly 10% escalations every five years and multiple five-year renewal options, on similar 7,000–7,500 square foot prototypes. On paper the structures are nearly interchangeable, which is precisely why this pairing isolates credit so cleanly.
The difference is behavioral. O’Reilly rarely abandons real estate, preferring renewal or nearby relocation, and its store count only moves in one direction. Advance is actively rationalizing roughly 15% of its store base, which converts every lease decision, renewal, assignment, or rejection in a downside scenario, into a live question. NNN leases do rank well in bankruptcy recovery scenarios, and auto parts demand is famously countercyclical, but a buyer of Advance paper should underwrite the specific store’s sales, the corridor, and the re-leasing market rather than leaning on the guarantee alone. See why parent company credit and lease obligor risk are separate questions on any guaranteed lease.
Real Estate: Growth Footprint vs Rationalized Footprint
O’Reilly’s roughly 6,100 stores span metros and secondary markets, with site selection targeting high-traffic intersections near service centers and complementary retail. Around 200 new openings a year mean fresh 15-year paper regularly reaches the market, and store density keeps strengthening the brand’s draw in existing regions.
Advance’s footprint is contracting toward its best corridors. That is arguably positive for the surviving stores, since closing low-volume locations improves per-store economics, but it leaves buyers holding the sorting risk. The auto parts box itself is a resilient piece of real estate: 7,000 square feet on a hard corner re-leases to competitors, service users, or discount retail if a store goes dark, which is one reason fallen-angel auto parts paper still finds buyers at the right yield.
The Bond-to-NNN Pivot: Investment Grade Yield vs High Yield Spread
O’Reilly is an active investment grade bond issuer, and its notes trade at yields meaningfully below its own NNN cap rates. An O’Reilly property at 6.25% offers a substantial premium over the company’s paper, plus depreciation, 1031 eligibility, and residual real estate value no bondholder receives. The full comparison, with after-tax math, is on the O’Reilly Auto Parts bonds vs NNN page.
Advance’s debt now trades in high yield territory; the company issued $1.5 billion of senior unsecured notes in 2025 at spreads that reflect its BB/Ba3 profile. For Advance, the bond market and the NNN market are pricing the same turnaround, and the comparison runs the other way: the bonds offer credit exposure without single-store risk, while the real estate offers a hard-asset floor the unsecured notes lack. When the two markets disagree about a credit, that disagreement is usually the trade.
Which NNN Investment Wins in 2026?
Choose O’Reilly if you want the sector’s reference credit: BBB/Baa1 ratings, a growing footprint, fresh long-term leases, clean financing, and the deepest exit buyer pool in auto parts. At 5.75–6.75% it is the default choice for 1031 buyers and fiduciaries, and its price band of $1.5M–$3.2M fits the most common exchange sizes in net lease.
Consider Advance only if you are explicitly pricing high-yield credit risk and can underwrite the specific store. The right Advance property, a high-volume survivor on a dominant corridor bought at 7.5%+, can outperform if the turnaround holds, and the stable outlooks assigned in mid-2026 suggest the worst of the deterioration has passed. But it is not a core investment grade holding, and it should not be priced or financed like one.
Risk-adjusted, this is the least symmetric matchup in the sector: O’Reilly wins for any buyer who needs certainty, and Advance is a special-situations trade for buyers who do not. The pairing is the clearest illustration in retail of why the BBB‑/Baa3 line is the line that matters.
O’Reilly vs Advance Auto Parts: Frequently Asked Questions
Is O’Reilly or Advance Auto Parts a better NNN investment?
O’Reilly is the stronger tenant for most buyers: BBB/Baa1 investment grade ratings, roughly 6,100 growing stores, and cap rates of 5.75–6.75%. Advance Auto Parts was downgraded to BB/Ba3 in July 2025 and trades at 6.5–8.0% to compensate for elevated credit risk and ongoing store closures. Advance suits only investors deliberately pricing high-yield risk.
Is Advance Auto Parts still investment grade?
No. S&P downgraded Advance Auto Parts to BB and Moody’s to Ba3 on July 24, 2025, both below the BBB‑/Baa3 investment grade cutoff. Both agencies revised their outlooks to stable in mid-2026 as the turnaround progressed, but the company remains a high-yield credit.
What credit rating does O’Reilly Auto Parts carry?
O’Reilly Automotive, Inc. is rated BBB by S&P and Baa1 by Moody’s, both with stable outlooks, consistent since 2024. It is the strongest credit among the major auto parts retailers and comfortably above the investment grade threshold.
Why do Advance Auto Parts properties trade at higher cap rates than O’Reilly?
Credit risk and closure risk. Advance’s 6.5–8.0% range compensates buyers for a BB/Ba3 high-yield rating, leverage near six times EBITDA, and a rationalization of 700+ stores that puts individual locations at risk. O’Reilly’s 5.75–6.75% range reflects investment grade credit and a footprint that is growing rather than shrinking.
What happens to an NNN lease if Advance Auto Parts closes the store?
The corporate guarantee obligates Advance to keep paying rent on a closed (dark) store unless the lease is assigned or rejected in a bankruptcy. A dark store still pays but loses renewal probability and resale appeal, so buyers should underwrite store-level sales and the corridor’s re-leasing market before acquiring any Advance property.
Weighing an investment grade tenant against a higher-yield fallen angel? Our team tracks cap rates, credit changes, and live inventory across every major NNN tenant. Request a buyer consultation and we will build a tenant-by-tenant comparison for your exchange timeline.
