Some of the stocks that may grab investor focus today are:

• Wall Street expects Deere & Company (DE) to report quarterly earnings at $2.26 per share on revenue of $8.19 billion before the opening bell. Deere shares fell 0.3% to $379.50 in after-hours trading.
• Dropbox, Inc. (DBX) reported better-than-expected earnings and sales results for its fourth quarter. Dropbox shares, however, fell 5.4% to $22.30 in the after-hours trading session.
• Analysts are expecting PPL Corporation (PPL) to have earned $0.32 per share on revenue of $2.00 billion for the latest quarter. The company will release earnings before the markets open. PPL shares gained 0.5% to $28.28 in after-hours trading.
• Roku, Inc. (ROKU) posted downbeat revenue for its fourth quarter and issued a weak sales forecast for the first quarter. Roku shares dipped 22.4% to $112.32 in the after-hours trading session.
• Analysts expect Bloomin' Brands, Inc. (BLMN) to report quarterly earnings at $0.52 per share on revenue of $1.04 billion before the opening bell. Bloomin' Brands shares rose 0.5% to $22.60 in after-hours trading.