With U.S. stock futures trading mixed this morning on Tuesday, some of the stocks that may grab investor focus today are as follows:

• Wall Street expects Patterson Companies, Inc. (NASDAQ:PDCO) to report quarterly earnings at $0.83 per share on revenue of $1.71 billion before the opening bell, according to data from Benzinga Pro. Patterson shares gained 3.9% to $23.75 in after-hours trading.
• JELD-WEN Holding, Inc. (NYSE:JELD) named Samantha L. Stoddard as its Chief Financial Officer, succeeding Julie C. Albrecht as EVP, CFO effective July 1. JELD-WEN shares fell 4.5% to $3.15 in the after-hours trading session.
• Analysts are expecting KB Home (NYSE:KBH) to post quarterly earnings at $1.80 per share on revenue of $1.65 billion. The company will release earnings after the markets close. KB Home shares fell 0.1% to $69.42 in after-hours trading.

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• SIGA Technologies, Inc. (NASDAQ:SIGA) disclosed an agreement to expand TPOXX's access to the member seats of the Association of Southeast Asian Nations. SIGA Technologies shares gained 2.1% to $6.73 in the after-hours trading session.
• Analysts expect America's Car-Mart, Inc. (NASDAQ:CRMT) to post quarterly earnings at $0.89 per share on revenue of $361.47 million before the opening bell. America's Car-Mart shares gained 4.9% to $64.80 in after-hours trading.