GNL vs O: Which Is the Better Buy in 2026?
Last updated October 2026
Short answer
O is the larger of the two ($53.06B market cap): the incumbent the market prices for continued execution (36.11x forward earnings, beta 0.70). GNL is the smaller challenger ($1.72B), priced similarly on forward earnings (-51.24x): more room to run, but more to prove. The real question is which set of drivers you believe, and whether owning one (or both) leaves you over-concentrated.
GNL vs O: the tie-breaker metrics
Same yardstick, side by side (as of October 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.
| Metric | GNL | O | What it tells you |
|---|---|---|---|
| Market cap | $1.72B | $53.06B | Size. The larger name is the incumbent; the smaller has more room to grow and more to prove. |
| Forward P/E | -51.24 | 36.11 | Valuation on next year's expected earnings, the same yardstick for both. Lower is cheaper for that growth; higher means the market is paying up. |
| Beta | 1.02 | 0.70 | Volatility vs the market. Above 1 swings harder than the index; below 1 is steadier. Higher beta means bigger drawdowns to hold through. |
| Price vs 52-week range | 2% of range | 20% of range | Where today's price sits between the 52-week low and high. Near the high is momentum with less margin of safety; near the low is out of favor or a discount, depending on why. |
| Price / book | 1.04 | 1.34 | How much you pay over book value. Very high can signal an asset-light, high-return business or a rich price. |
Before you buy: how GNL and O affect your concentration
The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. GNL and O share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.
This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined GNL and O exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.
What does Global Net Lease (GNL) do?
Global Net Lease is an internally managed real estate investment trust that buys commercial properties and leases each one to a single tenant on a long-term net lease, meaning the tenant pays most property taxes, insurance and maintenance. GNL's income is the rent those tenants pay, which rises through contractual escalators (a weighted-average ~1.4% a year, with another ~20% of the portfolio linked to inflation). As of June 30, 2026 it owned 798 properties covering about 40 million square feet, 97% leased, with a weighted-average remaining lease term of 5.7 years. About 74% of annualized straight-line rent came from the US and Canada and 26% from Europe, and roughly 63% came from investment-grade or implied investment-grade tenants. By property type, rent was ~47% industrial and distribution, ~28% retail and ~25% office before the Modiv deal.
What does Realty Income Corporation (O) do?
Realty Income Corporation (NYSE: O), founded in 1969 and headquartered in San Diego, California, is a real estate investment trust that acquires, owns, and manages freestanding, single-tenant commercial properties leased under long-term triple-net agreements. Under a triple-net lease, tenants bear property taxes, insurance, and maintenance costs, making revenue highly predictable; rental income forms over 99% of total revenue. As of Q1 2026, the portfolio spanned more than 15,600 properties leased to approximately 1,600 clients across 92 industries in all 50 U.S. states, the United Kingdom, and seven other European countries. Top tenants include essential and service-oriented businesses such as Walgreens, Dollar General, Dollar Tree, FedEx, Walmart, and CVS, which are considered relatively resistant to e-commerce disruption. The company earns its return by purchasing properties at cap rates meaningfully above its cost of capital and collecting contractual rent escalators over weighted average remaining lease terms of roughly nine years.
GNL vs O: how do they differ?
Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.
- GNL drivers: The shift toward industrial; Deleveraging.
- O drivers: Monthly dividend compounding with a 30-plus year growth streak; Accelerating global acquisition pipeline at attractive spreads.
Which fits which kind of investor
A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Leverage remains GNL's central risk. For O, interest rate sensitivity is the primary structural risk: O's share price is materially affected by movements in Treasury yields because investors compare its dividend yield against risk-free alternatives, and rising rates also increase borrowing costs that narrow acquisition spreads.
GNL or O: which should you pick?
Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick GNL if you believe its drivers more; O if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the GNL and O guides.
GNL vs O: the full fundamentals
GNL. REITs are usually valued on AFFO (adjusted funds from operations) rather than net income, because depreciation makes GAAP earnings understate cash flow. That is why GNL can show a small net loss (about $0.04 per share in Q2 2026) and a payout ratio above 1,000% on an earnings basis while its dividend is covered by AFFO. At ~9x 2026 AFFO and roughly 1x book value, GNL trades well below larger net-lease peers such as Realty Income or W. P. Carey, which typically sit in the low-to-mid teens. The gap reflects higher leverage, office exposure, a shrinking revenue base and a weaker governance history. Q3 2026 results are scheduled for November 4, 2026.
O. REITs are most meaningfully valued on AFFO rather than GAAP earnings, because depreciation charges make net income a poor proxy for cash generation; at ~$56.13 in mid-October 2026, O trades near ~12.7x the midpoint of its 2026 AFFO guidance, cheaper than the ~14x of late June. The ~5.9% dividend yield is among the highest O has offered in the past decade, and it comes from share-price compression rather than any cut, since the dividend was raised again in September 2026. The ~$9.5 billion 2026 investment target, new convertible debt and the KKR joint venture show management leaning into acquisitions, which increases sensitivity to capital market access; third-quarter results on November 2, 2026 will update both AFFO and investment guidance.
Headline figures (approximate, October 2026): GNL shows revenue (ttm) ~$460M (June 2026 quarter ~$112.5M, -10% YoY), affo per share $0.22 in Q2 2026; 2026 guidance $0.82 to $0.85, dividend $0.19 quarterly, ~$0.76 per year (~10% yield near $7.40), net debt / adjusted ebitda ~6.6x (June 30, 2026), target 6.5x to 6.9x; O shows revenue (ttm) ~$6.07 billion; Q2 2026 revenue ~$1.43 billion, up ~9.6% YoY, net income (ttm) ~$1.27 billion; Q2 2026 GAAP EPS ~$0.37 vs ~$0.42 consensus, affo per share (fy 2025) ~$4.28; 2026 guidance $4.41 to $4.44 as of the Q1 2026 report, margins Operating margin ~47%, net margin ~21% (trailing).
The bottom line: GNL vs O
GNL and O are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined GNL and O exposure against your real portfolio. It is not an investment adviser.
Wondering how GNL or O fits the portfolio you already own? Walnut is an AI investing app that connects your brokerage read-only and answers questions like that about your actual holdings: overlap, concentration, and how each position tracks the S&P 500. Compare the best AI portfolio analyzers or see the best AI investing apps in 2026.
Investing in Global Net Lease with AI
Connect the broker you already use and ask Walnut's AI how GNL fits what you actually hold: whether you own it already through a fund, what it would do to your concentration, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.
FAQ
What is the difference between GNL and O?
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Global Net Lease is an internally managed real estate investment trust that buys commercial properties and leases each one to a single tenant on a long-term net lease, meaning the tenant pays most property taxes, insurance and maintenance. Realty Income Corporation (NYSE: O), founded in 1969 and headquartered in San Diego, California, is a real estate investment trust that acquires, owns, and manages freestanding, single-tenant commercial properties leased under long-term triple-net agreements. They show up together because they share investment themes, but they are different businesses, so the better fit depends on which thesis you are expressing.
Is GNL or O the better stock?
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Neither is universally better. O is the larger incumbent; GNL is the smaller challenger and looks cheaper on forward earnings. Walnut is informational, not investment advice. Compare what each does, the tie-breaker metrics above, and the risks, then decide which fits your thesis and what you already own.
Which is cheaper, GNL or O?
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On forward P/E (as of October 2026), GNL trades at -51.24x and O at 36.11x, so GNL is the cheaper of the two on next year's expected earnings. A lower multiple is not automatically the better buy: a richer valuation can be justified by faster growth, and a lower one can reflect real risk. Weigh the multiple against how fast each business is compounding.
Should you own both GNL and O?
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Because they share themes, owning both concentrates you in that theme. That can be intentional (a focused bet) or accidental (less diversification than it looks). Walnut can show your combined exposure across both, and whether adding either over-concentrates you, before you buy.
What are the risks of GNL vs O?
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GNL: Leverage remains GNL's central risk. At ~6.6x net debt to adjusted EBITDA it is above most net-lease peers, and a ~2.7-year weighted-average debt maturity means a large share of borrowings will be refinanced soon, possibly above the current ~4.1% average rate. Office is still about a quarter of rent before Modiv, and lease expirations there can bring vacancy, tenant improvement costs and lower re-leasing rents, while buyers for office buildings remain selective. Revenue fell from ~$132 million in Q1 2025 to ~$109 million in Q1 2026 as assets were sold, and if sale prices disappoint or proceeds cannot be redeployed accretively, AFFO per share could slip and the ~90% payout would leave little cushion. Roughly 26% of rent is in Europe, adding euro and sterling currency exposure. GNL still reports a GAAP net loss, issued new shares to buy Modiv at a depressed share price, and carries four series of preferred stock that rank ahead of common holders. Its history includes external management by AR Global and a 2023 proxy fight with Blackwells Capital, and Modiv stockholders filed disclosure complaints over the merger that GNL says lack merit. O: Interest rate sensitivity is the primary structural risk: O's share price is materially affected by movements in Treasury yields because investors compare its dividend yield against risk-free alternatives, and rising rates also increase borrowing costs that narrow acquisition spreads. Tenant credit quality is a secondary concern, as a portion of credit losses has been traced to tenants acquired through recent M&A transactions, and retail bankruptcies or store-closure programs could pressure occupancy below its historically stable 98-plus percent level. Currency risk is growing as European investments expand, with local-currency debt only partially hedging revenue exposure. The stock trades at a GAAP P/E of roughly 41x (as of mid-October 2026), a premium to the broader REIT sector, and its share price fell ~13.6% over the three months to October 16, 2026, meaning any disappointment in AFFO growth or guidance could weigh disproportionately on share price.
Walnut is informational, not investment advice. This page is descriptive and not a recommendation to buy or sell GNL or O; figures are approximate and dated (as of October 2026). Verify current data before investing.