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

SelectedToday6M Return

RKLBRocket Lab Corp+ 0.81%+ 7.61%
SPCXSpace Exploration Technologies Corp− 0.67%− 7.47%
Partial Period · Jun 12, 2026 — Sep 4, 2026
RTXRTX Corp− 0.68%+ 1.58%
Partial Period · Feb 26, 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.

RKLB+ 7.6%SPCX− 7.5%RTX+ 1.6%Tap or hover the chart for values along the way

Metric	RKLBRocket Lab Corp	SPCXSpace Exploration Technologies Corp	RTXRTX Corp
Return
Last Price	64.33	148.73	200.76
Daily Change	+ 0.81%	− 0.67%	− 0.68%
Period ReturnPast 6 Months	+ 7.61%	− 7.47%Jun 12, 2026 — Sep 4, 2026	+ 1.58%Feb 26, 2026 — Sep 4, 2026
Valuation
Market Cap	$38.5 B	$1.96 T	$271 B
P/E Ratio	—	—	35.35
Dividend Yield	—	—	2.95%
Net MarginTrailing 12M	21.5%	31.3%	8.3%
Risk
Beta	3.17	5.77	0.31
52-Week Range	37.57 — $151.00	104.83 — $225.64	150.61 — $226.88
Company
Sector	Industrials	—	Industrials
Industry	Aerospace & Defense	Telecommunication	Aerospace & Defense

Company

RKLBIndustrials · Aerospace & Defense
SPCXTelecommunication
RTXIndustrials · Aerospace & Defense

Alpaca · SIPUpdated 19:4615 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.