Wall Street readies for a big week of tech earnings and a Federal Reserve policy update; Tesla reports earnings after Monday's closing bell; Bitcoin rises on speculation Amazon will enter the crypto sector.

Shares of cybersecurity focused companies including FireEye, Palo Alto Networks and Check Point Software gain following a cyberattack on software provider Kaseya.

Check Point's sales of $507.6 million beat the FactSet analyst consensus of $502.0 million, while adjusted EPS of $1.54 a share beat estimates for $1.50.

Jim Cramer outlines the bullish themes he thinks can stand the test not only of today, or tomorrow, but for all of 2021 and beyond.

The worst-performing stocks in the Nasdaq on Tuesday included Citrix Systems, PayPal, and Splunk Inc., among others.

"Supply chain challenges and persistent delays significantly limited the brand's responsive abilities" to changing consumer trends, CEO Sonia Syngal told investors Thursday.

"We believe the slowdown was caused by the spending pressure our consumers felt from higher gas prices and broader inflation," said CEO Bruce Thorn.

Costco took in $984 million in new membership fee in its fiscal third quarter, helping the bulk retailer top Street forecasts for topline revenues.