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

SelectedToday1M Return

SNDKSandisk Corp+ 10.43%+ 41.17%
Partial Period · Jul 31, 2026 — Sep 4, 2026
KLACKLA Corp+ 7.26%+ 1.27%
Partial Period · Jul 31, 2026 — Sep 4, 2026
COHRCoherent Corp+ 5.68%+ 1.44%

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.

SNDK+ 41.2%KLAC+ 1.3%COHR+ 1.4%Tap or hover the chart for values along the way

Metric	SNDKSandisk Corp	KLACKLA Corp	COHRCoherent Corp
Return
Last Price	1,717.24	185.50	279.44
Daily Change	+ 10.43%	+ 7.26%	+ 5.68%
Period ReturnPast Month	+ 41.17%Jul 31, 2026 — Sep 4, 2026	+ 1.27%Jul 31, 2026 — Sep 4, 2026	+ 1.44%
Valuation
Market Cap	$254 B	$242 B	$54.7 B
P/E Ratio	23.56	50.60	67.95
Dividend Yield	—	1.04%	—
Net MarginTrailing 12M	56.5%	35.6%	11.3%
Risk
Beta	3.88	1.46	2.18
52-Week Range	55.55 — $2,354.39	83.90 — $307.37	90.00 — $440.00
Company
Sector	Information Technology	Information Technology	Information Technology
Industry	Technology	Semiconductors	Electrical Equipment

Company

SNDKInformation Technology · Technology
KLACInformation Technology · Semiconductors
COHRInformation Technology · Electrical Equipment

Alpaca · SIPUpdated 20:5015 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.