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

SelectedToday3M Return

ROKRockwell Automation Inc+ 1.41%+ 3.50%
ETNEaton Corporation PLC+ 3.29%+ 2.50%
Partial Period · Jun 1, 2026 — Sep 4, 2026
EMREmerson Electric Co+ 1.62%+ 7.76%
Partial Period · Jun 1, 2026 — Sep 4, 2026

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.

ROK+ 3.5%ETN+ 2.5%EMR+ 7.8%Tap or hover the chart for values along the way

Metric	ROKRockwell Automation Inc	ETNEaton Corporation PLC	EMREmerson Electric Co
Return
Last Price	434.33	410.19	152.64
Daily Change	+ 1.41%	+ 3.29%	+ 1.62%
Period ReturnPast 3 Months	+ 3.50%	+ 2.50%Jun 1, 2026 — Sep 4, 2026	+ 7.76%Jun 1, 2026 — Sep 4, 2026
Valuation
Market Cap	$48.3 B	$159 B	$85.5 B
P/E Ratio	40.63	41.72	33.38
Dividend Yield	1.83%	1.50%	2.37%
Net MarginTrailing 12M	13.4%	12.8%	13.8%
Risk
Beta	1.51	1.13	1.24
52-Week Range	332.71 — $497.36	311.92 — $478.00	122.64 — $166.35
Company
Sector	Industrials	Industrials	Industrials
Industry	Electrical Equipment	Electrical Equipment	Electrical Equipment

Company

ROKIndustrials · Electrical Equipment
ETNIndustrials · Electrical Equipment
EMRIndustrials · Electrical Equipment

FinnhubUpdated 22:53

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.