Which has the lower trailing P/E, IBKR or MAIN?

MAIN has the lower trailing P/E: IBKR trades at 36.55 and MAIN at 11.33. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, IBKR or MAIN?

Over the past five years, IBKR grew revenue faster — IBKR at a 32.59% CAGR versus MAIN at 11.02%.

Does IBKR or MAIN pay a bigger dividend?

IBKR yields 0.37% and MAIN yields 6.65% based on trailing dividends and the latest price.

Is IBKR or MAIN more profitable?

MAIN runs the higher net margin — IBKR at 10.14% versus MAIN at 64.50%.

How have IBKR and MAIN total returns compared?

Over the past 10 years, IBKR delivered 26.88% and MAIN delivered 13.25% annualized total return. Past performance doesn't predict future results.

Interactive Brokers Group, Inc. (IBKR) vs Main Street Capital Corporation (MAIN)

A side-by-side comparison of Interactive Brokers Group, Inc. and Main Street Capital Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of September 10, 2026. Differences are shown without an overall score or investment verdict.

IBKR

Interactive Brokers Group, Inc.

$157.89B

$91.37Financial ServicesDelayed quote: Sep 11, 2026, 4:00 PM EDT

MAIN

Main Street Capital Corporation

$5.23B

$56.22Financial ServicesDelayed quote: Sep 11, 2026, 4:00 PM EDT

Total return — IBKR vs MAIN

growth of $100 · dividends reinvested · last 10y

IBKR +981.4% (+26.9%/yr)MAIN +251.4% (+13.4%/yr)IBKR compounded faster over this window

IBKR MAIN

IBKR vs MAIN: by the numbers

•IBKR is the larger company ($157.89B vs $5.23B market cap).
•MAIN trades at the lower trailing earnings multiple (11.33 vs 36.55 P/E), one valuation lens rather than an overall verdict.
•MAIN converts more revenue to profit (64.50% vs 10.14% net margin).
•IBKR grew revenue faster over the past five years (32.59% vs 11.02% CAGR).
•MAIN pays the higher dividend yield (6.65% vs 0.37%).

Metrics side by side

Valuation

Metric	IBKR	MAIN
P/E ratio	36.55	11.33
Forward P/E	33.83	14.75
P/S ratio	14.22	7.47
P/B ratio	26.74	1.65

Profitability

Metric	IBKR	MAIN
Gross margin	93.34%	100.00%
Operating margin	87.09%	80.71%
Net margin	10.14%	64.50%
ROE	19.07%	14.25%

Dividends

Metric	IBKR	MAIN
Dividend yield	0.37%	6.65%
Payout ratio	13.10%	74.80%

Growth (annualized)

Metric	IBKR	MAIN
Revenue CAGR (5Y)	32.59%	11.02%
EPS CAGR (5Y)	29.60%	65.11%
Total return CAGR (5Y)	42.38%	14.86%

Frequently asked

Which has the lower trailing P/E, IBKR or MAIN?: MAIN has the lower trailing P/E: IBKR trades at 36.55 and MAIN at 11.33. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, IBKR or MAIN?: Over the past five years, IBKR grew revenue faster — IBKR at a 32.59% CAGR versus MAIN at 11.02%.
Does IBKR or MAIN pay a bigger dividend?: IBKR yields 0.37% and MAIN yields 6.65% based on trailing dividends and the latest price.
Is IBKR or MAIN more profitable?: MAIN runs the higher net margin — IBKR at 10.14% versus MAIN at 64.50%.
How have IBKR and MAIN total returns compared?: Over the past 10 years, IBKR delivered 26.88% and MAIN delivered 13.25% annualized total return. Past performance doesn't predict future results.

Go deeper

Full IBKR analysis Full MAIN analysis Interactive comparison tool

Dig into the metrics

Interactive Brokers P/E ratio Main Street Capital P/E ratio Interactive Brokers dividend yield Main Street Capital dividend yield Interactive Brokers ROE Main Street Capital ROE Interactive Brokers operating margin Main Street Capital operating margin Interactive Brokers revenue growth Main Street Capital revenue growth

Interactive Brokers & Main Street Capital appear in these rankings

Highest Dividend Yield Stocks Fastest Revenue Growth Stocks Highest Operating Margin Stocks Highest FCF Yield Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified September 10, 2026.