ETF Comparison

MAIN vs O: Which Is the Better Pick in 2026?

A head-to-head comparison of Main Street Capital Corporation and Realty Income Corporation covering yield, cost, risk, and income potential.

Data updated July 4, 2026

Main Street Capital

ETFs1

Total AUM—

ETFs and AUM reflect what Dividend Vision tracks — the issuer's full lineup may be larger.

Main Street Capital operates a focused ETF lineup concentrated on income-generating investments. The company offers one ETF, MAIN, which falls within the income fund family and targets investors seeking regular dividend distributions. As a specialized issuer with a single-fund strategy, Main Street Capital serves a niche segment of the ETF market focused on yield-oriented portfolios.

See our curated list of related YouTube videos on MAIN.

See all Main Street Capital ETFs

Realty Income

ETFs1

Total AUM—

ETFs and AUM reflect what Dividend Vision tracks — the issuer's full lineup may be larger.

Realty Income is known as "The Monthly Dividend Company" for its focus on providing consistent income streams to investors through real estate investments. The company operates a single ETF (ticker: O) that falls within the income fund family, designed to deliver regular monthly dividend payments. With its concentrated fund lineup and emphasis on commercial real estate holdings, Realty Income serves investors seeking predictable cash flow generation rather than capital appreciation.

See our curated list of related YouTube videos on O.

See all Realty Income ETFs

Side-by-side snapshot

	MAIN	O
Full name	Main Street Capital Corporation	Realty Income Corporation
Issuer	Main Street Capital	Realty Income
Last Close	$51.96 as of July 4, 2026	$63.84 as of July 4, 2026
Distribution yield	6.00%	5.26%
Distribution Safety Score	73	100
Expense ratio	—	—
AUM	—	—
Distribution frequency	Monthly	Monthly
Underlying index	—	—
Objective	—	A real estate investment trust that invests in freestanding, single-tenant commercial properties subject to long-term net lease agreements. Known as "The Monthly Dividend Company," Realty Income has a long track record of monthly dividend payments and consistent dividend growth.
Asset class	Equity	Real Estate
Inception date	N/A	N/A
Beta	0.728	0.734
Last dividend	$0.2650	$0.2710
Ex-dividend date	09/08/2026	06/30/2026

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Visual comparison

Key metrics

Projected income on $10K

Projections assume the current yield and share price remain constant. Actual results will vary.

Total returns

MAIN has lagged O over the trailing twelve months, posting a -6.24% total return against 15.57%. The picture flips over 10 years, though — MAIN has compounded at 12.80% a year, ahead of O at 4.20%. Figures are total returns: price change plus every distribution reinvested.

Symbol	YTD	1Y	3Y	5Y	10Y	Since Oct 2007	Volatility	Sharpe	Sortino	Max drawdown
MAIN	-13.03%	-6.24%	17.74%	13.00%	12.80%	16.15%	20.5%	0.58	0.80	-22.4%
O	13.33%	15.57%	7.51%	4.72%	4.20%	9.65%	18.3%	0.15	0.21	-26.5%

Total return with all distributions reinvested on the ex-dividend date, split-adjusted, as of July 2, 2026. YTD and 1Y are cumulative; longer windows are annualized. “Since Oct 2007” measures every fund from October 5, 2007 — the youngest fund's first trading day — so all funds share one comparison window. Volatility is the annualized standard deviation of daily total returns over the trailing 3 years. Sharpe and Sortino divide the annualized return in excess of the risk-free rate by, respectively, that volatility and the downside deviation (both over the trailing 3 years) — higher is better. Max drawdown is the largest peak-to-trough total-return decline over the same window — shallower is better.

Quick verdict

MAIN (Main Street Capital Corporation) is a business development company, while O (Realty Income Corporation) is a real estate investment trust — they take fundamentally different approaches.

MAIN offers the higher yield at 6.00% vs 5.26% for O. A higher yield means more current income per dollar invested, though it may come with different risk characteristics.

Deep dive

Yield & income

On a $10,000 investment, MAIN would generate roughly $50.00/month, while O would produce $43.83/month, at current distribution rates. Both pay monthly distributions.

MAIN yield6.00%

O yield5.26%

Monthly diff on $10K$6.17

Cost & efficiency

Over 10 years on $10,000, MAIN would cost approximately $0 in fees vs $0 for O (simplified, not compounded). Both charge the same expense ratio.

MAIN ER—

O ER—

Strategy & risk

MAIN is a business development company, while O is a real estate investment trust. Beta is 0.728 for MAIN and 0.734 for O, indicating MAIN is less volatile relative to the market.

MAIN beta0.728

O beta0.734

Fund details

MAIN is managed by Main Street Capital (launched —) with — in assets. O is managed by Realty Income (launched 10/18/1994) with — in assets.

MAIN AUM—

O AUM—

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Frequently asked questions

Is MAIN or O better for dividend income?

It depends on your goals. MAIN currently offers the higher distribution yield, which means more income per dollar invested. However, a lower-yield fund may offer better total return or lower volatility. Consider your time horizon and risk tolerance.

What is the difference between MAIN and O?

MAIN (Main Street Capital Corporation) is a business development company, while O (Realty Income Corporation) is a real estate investment trust. They are issued by Main Street Capital and Realty Income respectively.

Can I hold both MAIN and O?

Yes. Many income investors hold both to diversify across different strategies and underlying indexes. This can reduce concentration risk while maintaining a strong income stream.

Which has lower fees, MAIN or O?

MAIN has an expense ratio of — while O charges —. Lower fees mean more of your investment returns stay in your pocket over time.

How much income does $10,000 in MAIN vs O generate?

At current rates, $10,000 in MAIN would generate roughly $50.00 per month ($600.00 annually). The same in O would produce about $43.83 per month ($526.00 annually).

Which has performed better historically, MAIN or O?

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MAIN vs O — at a glance

Generated June 2026 from current fund data.

Overview

MAIN is a Business Development Company (BDC) that lends to and invests in middle-market private businesses, while O is a net-lease REIT holding freestanding commercial properties under long-term tenant agreements. Both pay monthly distributions, but MAIN generates income through debt and equity positions in operating companies, whereas O relies on real estate rental income backed by triple-net leases that shift most property operating costs to tenants.

How they differ

The core difference is asset type: MAIN invests in the debt and equity of private operating companies, exposing you to business performance and refinancing risk; O owns physical real estate leased to established operators, where income flows from contractual rental obligations. MAIN's distribution rate of 6.27% exceeds O's 5.25%, reflecting the higher yield investors typically demand for private-company exposure versus stabilized commercial real estate. Both have similar beta (0.728 for MAIN, 0.734 for O), suggesting comparable sensitivity to broad market moves, but MAIN carries the additional risk of single-investment concentration—a major borrower's distress or default can ripple through the fund—whereas O's diversification across hundreds of properties dampens single-tenant risk.

Who each is best for

MAIN: Fits investors with moderate risk tolerance who seek higher current income and can tolerate the illiquidity and volatility inherent in private business lending; appeals to those comfortable with smaller positions in the portfolio given concentration risk.

O: Designed for investors prioritizing steady, growth-oriented income with lower volatility; fits those seeking diversified real estate exposure without property management responsibility, and those valuing a decades-long track record of monthly distributions and dividend growth.

Key risks to know

Leverage and refinancing risk (MAIN): BDCs routinely use debt to amplify returns, which magnifies losses when portfolio companies underperform or when debt must be rolled over in a rising-rate environment. Rising rates also compress valuations of existing debt positions.

Concentration risk (MAIN): A single large investment or a handful of borrowers can represent 15–30% of a BDC's assets; deterioration in one major credit directly affects NAV and distribution capacity.

Tenant credit and renewal risk (O): While net leases shift operating costs to tenants, they don't eliminate tenant default. A significant tenant failure or lease non-renewal at below-market rates could pressure income and NAV.

Interest-rate sensitivity (both): Rising rates pressure MAIN's borrowers (increasing defaults) and O's property valuations (reducing NAV per share); falling rates have the opposite effect. Both are susceptible to rate-driven spread widening.

NAV volatility (MAIN): MAIN's investment in illiquid private companies means NAV can swing significantly quarter to quarter based on valuation adjustments, whereas O's liquid real estate holdings see more stable NAV movements.

Bottom line

If you prioritize higher current yield and can tolerate concentration risk and illiquidity inherent in private-company lending, MAIN offers an extra 100 basis points; if you value diversification, a 30-year dividend track record, and more stable NAV, O's net-lease model fits a lower-volatility income strategy. Both are monthly payers and both float on similar market beta, so the tradeoff hinges on your appetite for private-credit exposure versus real estate stability. Past performance does not guarantee future results.

AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.