The best NNN buyers are not trying to turn real estate into a bond.
They are trying to avoid paying bond-like prices for risks that a bond investor does not have to own.
That distinction is the whole point of using public credit markets as a lens for private NNN deals. A corporate bond can show how investors price an issuer’s credit risk. A REIT balance sheet can show how scaled net lease owners think about leverage, duration, tenant concentration, and capital access. Treasury yields can show the baseline return available without taking tenant, lease, or property risk. Credit spreads can show whether the market is getting paid more or less to own a given rating tier.
A single-tenant NNN property adds something more complicated: one building, one lease, one rent stream, one local market, one exit buyer pool, and one legal obligor that may or may not match the logo on the sign.
That is why public credit is useful, but only if it is used correctly. It should not replace property underwriting. It should make the underwriting sharper.
In 2026, the public-market comparison matters because income has alternatives again. Treasury yields are no longer near zero. Investment grade corporate bonds offer visible yields and daily liquidity. The Boulder Group reported average single-tenant net lease cap rates of 6.80% in the first quarter of 2026, with retail at 6.55%, industrial at 7.15%, and office at 7.90%. Federal Reserve Economic Data publishes daily 10-Year Treasury data and ICE BofA BBB corporate option-adjusted spread data, giving private buyers a public benchmark for risk-free rates and investment grade credit spreads.
The practical question for a direct NNN buyer is not, “Is this tenant famous?” It is this: does the cap rate pay enough for the credit risk, lease risk, real estate risk, illiquidity, and exit risk that come with owning the property directly?
The public market gives the buyer a starting line
Every NNN deal starts with a spread, even when the offering memorandum only shows a cap rate.
If the 10-Year Treasury is around the mid-4% range and a high-quality NNN property is offered at a 5.25% cap rate, the buyer is not just buying a 5.25% yield. The buyer is accepting a spread over Treasuries before accounting for closing costs, reserves, financing, tenant credit, lease language, rent bumps, re-leasing risk, local-market depth, and exit liquidity.
That may be acceptable for a long lease to an exceptional credit on a high-barrier site. It may be thin for a replaceable box in a secondary or tertiary market with flat rent and limited alternative use.
The risk-free rate does not tell the buyer what to pay. It tells the buyer where the conversation starts. If a private real estate deal offers only a narrow premium to liquid government bonds, the property needs to earn that narrow spread through quality. If the premium is wide, the buyer needs to understand what the market is warning about.
This is where the prior InvestmentGrade.com article on bonds versus NNN real estate becomes more than an academic comparison. Bonds establish the baseline. NNN underwriting decides whether the extra return is adequate.
Tenant credit is not the same as lease credit
Public credit markets price issuers. NNN buyers buy leases.
That sounds obvious, but it is one of the most common mistakes in private net lease underwriting. A buyer sees a national brand and assumes the credit story is the parent company. The lease may tell a different story.
The building may carry the name of a public company, but the lease may be signed by a subsidiary, franchisee, regional operator, acquisition vehicle, or private entity. The rated parent may not be the tenant. The guaranty may be limited. The rent obligation may sit several legal steps away from the public balance sheet that investors recognize.
Public bond spreads are most useful when the bond issuer and the rent obligor are economically connected. If the lease is guaranteed by the rated parent, public credit can strongly inform pricing. If the lease is signed by a franchisee, public credit may provide brand and sector context, but it does not pay the rent. The buyer still needs operator financials, unit economics, rent coverage, guarantor strength, store performance, and local market analysis.
This is why parent guarantee versus subsidiary tenant analysis belongs near the front of the underwriting file. Before comparing a cap rate to public bond yields, the buyer has to identify whose credit is actually behind the lease.
REIT ratings show what scaled buyers care about
Public net lease REITs are useful comps because they live in both worlds. They own private real estate, but they finance themselves in public capital markets.
When a rated net lease REIT discusses leverage, fixed-charge coverage, weighted-average lease term, tenant concentration, investment grade exposure, disposition discipline, and liquidity, private buyers should pay attention. The details are not identical to buying one property, but the credit logic rhymes.
REIT credit ratings remind private NNN buyers that durability is not just a tenant-by-tenant question. It is also a portfolio construction question. A direct buyer may not own hundreds of properties, but the same concepts still matter at the deal level: lease duration, rent growth, tenant quality, property type, sector exposure, debt structure, and ability to survive a bad surprise.
A 1031 buyer often underwrites in a compressed window. REIT analysts do not have that luxury. They repeatedly ask whether income is durable, whether leverage is prudent, whether assets can be sold, whether tenants are concentrated, and whether capital access remains open when the market tightens. Those questions make private NNN underwriting better.
For a deeper companion framework, see what REIT credit ratings tell private NNN buyers.
The spread has to pay for what bonds do not carry
The cleanest way to use public credit is to ask a spread question.
A bond investor owns issuer credit and market-price risk. A NNN owner owns issuer or operator credit, lease language, rent sustainability, building condition, local-market demand, property-level capex exposure, financing risk, broker friction, transaction costs, and exit liquidity.
That extra complexity deserves compensation unless the real estate is so strong that it reduces the property-level risk materially.
For example, a grocery-anchored or discount retail NNN property tied to a strong operator may deserve a different spread than a bank branch with local deposit uncertainty, a QSR franchisee lease with thin unit-level disclosure, or a distribution facility whose value depends on building specifications and logistics demand. Public markets can help frame the tenant or sector risk, but they cannot tell the buyer whether the site is special.
A buyer should compare the offered cap rate against four reference points:
- The 10-Year Treasury yield.
- Broad investment grade corporate bond yields and BBB credit spreads.
- The tenant’s own public credit, if rated and if the lease is actually tied to that credit.
- Current net lease cap-rate research for the tenant category, lease term, and property type.
After that comparison, the buyer should adjust for property-specific factors: guaranty, rent bumps, rent coverage, remaining term, replacement rent, market depth, building reuse, and likely buyer pool at exit.
If the spread still looks fair after those adjustments, the deal deserves deeper review. If the spread only looks fair before those adjustments, the cap rate is probably disguising risk rather than compensating for it.
Public markets move faster than private real estate
One reason public credit markets are so valuable is speed.
Bond spreads can move daily. Ratings outlooks can change quickly. Treasury yields can reset the income baseline before sellers update their price expectations. Private NNN pricing usually moves more slowly because sellers anchor to prior comps, appraisals, old broker opinions, and the belief that a familiar tenant name should still command yesterday’s cap rate.
That lag creates danger for buyers. A seller may still be asking for a tight cap rate while public markets are already demanding more return for the same tenant or sector. The buyer who ignores credit spreads may pay stale real estate pricing for a deteriorating credit story.
But the lag can also create opportunity. Sometimes public markets remain calm while private buyers overreact to headlines. Sometimes a tenant has noise around store closures, restructuring, or sector pressure, but the specific lease, site, rent level, and real estate residual value still support a disciplined acquisition. In those cases, public credit can help separate fear from deterioration.
The point is not to let public markets make the decision. The point is to notice when public and private pricing disagree.
Sector examples: where the lens changes the question
The public-credit lens is most useful when it changes the buyer’s question.
For bank branch NNN properties, the question is not only whether the bank is rated. It is whether branch deposits, market relevance, consolidation risk, and reuse value justify the spread over bank bonds. A strong bank credit can support the rent, but a branch still has local-market and exit-risk questions.
For grocery and discount retail, the question is whether defensive consumer demand and credit quality are already fully reflected in the cap rate. Necessity retail can deserve tighter pricing, but a buyer still has to analyze rent-to-sales, box size, replacement tenants, and whether the market can support the location if the original tenant leaves.
For industrial and distribution properties, the public issuer may matter, but the building often matters just as much. Clear height, loading, access, yard, labor, power, tenant improvements, and submarket liquidity can determine whether the real estate remains valuable beyond the initial lease.
For QSR properties, public credit ratings can be misleading when the lease is signed by a franchisee. The brand may be strong, but the buyer’s rent depends on the operator, unit economics, guaranty structure, drive-thru quality, and residual pad value.
These examples all point to the same discipline. Public credit markets help price the income stream. Real estate underwriting tests the collateral.
The buyer operating system
A practical public-credit screen for private NNN deals can be simple.
First, identify the legal tenant and guarantor. Do not start with the brand. Start with the lease.
Second, classify the credit. Is the obligor investment grade, speculative grade, unrated public, private, subsidiary, franchisee, or sponsor-backed? If there is a rated parent, confirm whether the parent actually guarantees the lease.
Third, compare the cap rate to public benchmarks: Treasuries, investment grade corporate yields, BBB spreads, and relevant tenant or sector credit data.
Fourth, compare the property to private market benchmarks: current net lease cap-rate research, recent trades, sector-specific pricing, lease term, rent bumps, and buyer depth.
Fifth, adjust for the risks that public markets cannot see: site quality, rent sustainability, replacement rent, building adaptability, local-market depth, and exit buyer pool.
Sixth, decide whether the spread is adequate. If the property is priced close to liquid public credit, it needs unusually strong real estate, lease structure, and tenant support. If it offers a wide spread, the buyer needs to identify exactly what risk is being priced and whether that risk is acceptable.
This process is especially useful during a 1031 exchange. The 45-day identification window can make any available property look like a solution. A public-credit screen gives the buyer an outside reference point before time pressure becomes the underwriter.
What public credit cannot solve
Public credit markets do not inspect roofs. They do not read estoppels. They do not know whether rent is above market. They do not know whether a former pharmacy can become urgent care, whether a QSR drive-thru is irreplaceable, whether a bank branch sits on a durable corner, or whether a distribution building will still fit the next tenant.
They also do not replace tax, legal, or financing advice. A 1031 buyer still needs qualified tax guidance, lease counsel, lender input, environmental review, title review, survey review, and property-level due diligence.
The purpose of public credit is narrower and more powerful: it gives the buyer a disciplined frame for price. It asks whether the real estate yield is high enough relative to what liquid public markets already offer.
The bottom line
Public credit markets are not a shortcut. They are a guardrail.
They help buyers avoid overpaying for famous names. They reveal when credit risk is changing faster than private real estate comps. They provide a way to benchmark tenant risk, rating-tier spreads, and income alternatives. They remind buyers that a cap rate is always a spread, even when the flyer presents it as a standalone number.
The best private NNN deals pass two tests. The credit supports the income, and the real estate supports the exit.
Public markets help with the first test. Disciplined property underwriting proves the second.
Need a NNN deal priced against public credit markets?
InvestmentGrade.com helps 1031 exchange buyers and direct NNN investors compare tenant credit, cap rates, lease structure, public credit context, and residual real estate value before they identify or acquire replacement property. Start with the Investment Grade tenant ratings index, review the 2026 NNN cap-rate framework, or request a tenant-credit review before committing to a shortlist.
Sources
- Federal Reserve Economic Data: Market Yield on U.S. Treasury Securities at 10-Year Constant Maturity.
- Federal Reserve Economic Data: ICE BofA BBB US Corporate Index Option-Adjusted Spread.
- S&P Global Ratings: Understanding credit ratings.
- Fitch Ratings: rating definitions and investment grade risk categories.
- The Boulder Group Q1 2026 Net Lease Research Report.
- InvestmentGrade.com Night 6 public-credit cluster articles on bonds, REIT ratings, bank branches, consumer staples, industrial distribution, QSR credit, and private NNN pricing.
