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

SelectedTodayYTD Return

NOCNorthrop Grumman Corp− 2.69%—
SPCXSpace Exploration Technologies Corp− 0.81%− 7.52%
Partial Period · Jun 12, 2026 — Sep 4, 2026
RTXRTX Corp− 0.82%+ 6.98%

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.

SPCX− 7.5%RTX+ 7.0%Tap or hover the chart for values along the way

Metric	NOCNorthrop Grumman Corp	SPCXSpace Exploration Technologies Corp	RTXRTX Corp
Return
Last Price	514.03	148.52	200.48
Daily Change	− 2.69%	− 0.81%	− 0.82%
Period ReturnYear to Date	—	− 7.52%Jun 12, 2026 — Sep 4, 2026	+ 6.98%
Valuation
Market Cap	$73.0 B	$1.95 T	$270 B
P/E Ratio	16.33	—	35.30
Dividend Yield	1.59%	—	2.95%
Net MarginTrailing 12M	10.5%	31.3%	8.3%
Risk
Beta	-0.12	5.77	0.31
52-Week Range	479.02 — $774.00	104.83 — $225.64	150.61 — $226.88
Company
Sector	Industrials	—	Industrials
Industry	Aerospace & Defense	Telecommunication	Aerospace & Defense

Company

NOCIndustrials · Aerospace & Defense
SPCXTelecommunication
RTXIndustrials · Aerospace & Defense

Alpaca · SIPUpdated 22:4015 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.