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Read two to four stocks on the same scale — return, valuation and volatility in one table.

SelectedToday1M Return

BROBrown & Brown Inc− 1.57%+ 5.77%
MRSHMarsh & McLennan Companies Inc− 1.44%− 2.08%
Partial Period · Jul 31, 2026 — Sep 4, 2026
AJGArthur J. Gallagher & Co.− 1.49%+ 5.32%
Partial Period · Jul 31, 2026 — Sep 4, 2026
AONAon PLC− 1.20%− 10.39%
Partial Period · Jul 31, 2026 — Sep 4, 2026

Four symbols is the limit; remove one to add another.

Period Return

Each series is converted to a percentage of its own starting point, so all of them begin at zero. What is compared is the return over the period, not price levels.

BRO+ 5.8%MRSH− 2.1%AJG+ 5.3%AON− 10.4%Tap or hover the chart for values along the way

Metric	BROBrown & Brown Inc	MRSHMarsh & McLennan Companies Inc	AJGArthur J. Gallagher & Co.	AONAon PLC
Return
Last Price	71.42	185.74	262.69	323.09
Daily Change	− 1.57%	− 1.44%	− 1.49%	− 1.20%
Period ReturnPast Month	+ 5.77%	− 2.08%Jul 31, 2026 — Sep 4, 2026	+ 5.32%Jul 31, 2026 — Sep 4, 2026	− 10.39%Jul 31, 2026 — Sep 4, 2026
Valuation
Market Cap	$23.9 B	$88.6 B	$68.2 B	$68.5 B
P/E Ratio	19.91	22.74	43.43	17.81
Dividend Yield	0.70%	—	0.87%	0.75%
Net MarginTrailing 12M	17.8%	14.2%	10.0%	22.3%
Risk
Beta	0.53	0.55	0.49	0.64
52-Week Range	53.81 — $96.55	156.60 — $207.83	190.75 — $313.55	304.59 — $382.34
Company
Sector	Financials	Financials	Financials	Financials
Industry	Insurance	Insurance	Insurance	Insurance

Company

BROFinancials · Insurance
MRSHFinancials · Insurance
AJGFinancials · Insurance
AONFinancials · Insurance

Alpaca · SIPUpdated 23:1515 Minutes Delayed

To Understand This

P/E and the Valuation RatiosYou can't tell whether a stock is cheap or expensive by looking at its price.Diversification: How Many Baskets Are Enough?Owning ten different stocks is not the same as owning ten different risks.