PacWest, Western Alliance rise premarket; Tupperware tumbles

Investing.com -- Stocks in focus in premarket trade on Monday, May 8th. Please refresh for updates.

• Shares in PacWest (NASDAQ: PACW) jumped in premarket trading, extending gains registered on Friday after the Beverly Hills-based bank cut its dividend and said its business is "solid."
• Arizona-based peer Western Alliance (NYSE: WAL) also rallied by over 10%, adding on to an increase of nearly 50% to end the prior session.
• Cryptocurrency-exposed businesses Marathon Digital (NASDAQ: MARA) and Riot Platforms (NASDAQ: RIOT) dropped. The moves come after digital coin exchange Binance lifted a block on Bitcoin withdrawals that was caused by heavy volumes and a spike in processing fees.
• Occidental Petroleum (NYSE: OXY) dipped slightly after Warren Buffett said his investment powerhouse, Berkshire Hathaway, will not make a bid to take full control of the energy firm.
• Snowflake (NYSE: SNOW) shares gained after Stifel upgraded its rating of the cloud software company to buy from hold.

• Tupperware Brands (NYSE: TUP) shares fell by more than a tenth as the reusable plastic container maker said it was working with investment bank Moelis & Co LLC to explore its strategic options. The company previously posted an 18% slump in net sales in the first quarter.

• Qualcomm (NASDAQ: QCOM) stock edged down marginally after the semiconductor group announced that it had agreed to purchase Israeli automotive chip maker Autotalks.

• Atlantica Sustainable Infrastructure (NASDAQ: AY) rose after National Bank Financial improved its outlook for the power generation business to Outperform from Sector Perform.

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