Check out the companies making headlines before the bell. Delta Air Lines \u2014 Shares tumbled 9% after the airline issued a lower-than-expected sales growth forecast in the current quarter. Net income also fell 30% in the second quarter despite revenue reaching record highs. Costco Wholesale \u2014 Costco shares added nearly 3% after the wholesale club raised its membership fee for the first time since 2017 . The company hiked the cost of its annual membership by $5 in the U.S. and Canada and increased its higher-tier plan by $10. Pfizer \u2013 Shares rose nearly 3% after the drugmaker said it will continue to develop the once-daily version of its weight loss pill following “encouraging” data in an early-stage trial , and plans to conduct studies in the second half of the year evaluating multiple doses of the drug. PepsiCo \u2014 Shares slipped 2% after the beverage and snacks giant reported a slight revenue miss for the second quarter and narrowed its revenue outlook for the full year. Pepsi now anticipates organic revenue growth of approximately 4%, versus its previous forecast of at least 4%. Its quarterly adjusted earnings per share came in above expectations. On Semiconductor \u2014 On Semiconductor’s stock slumped 3%. Morgan Stanley downgraded shares to underweight, citing top-line headwind concerns that cap the opportunity for multiple expansion. WD-40 \u2014 WD-40 shares climbed 10% on stronger-than-expected fiscal third-quarter results. The maker of metal lubricants beat Wall Street’s estimates on the top and bottom lines, posting earnings of $1.46 per share and $155 million in revenue. Darden Restaurants \u2014 The Olive Garden parent slipped 1.6% on the heels of a Jefferies downgrade to underperform from hold. Jefferies said the company could see its near-term fundamentals challenged. Alcoa \u2014 The aluminum producer’s shares rose 2.7% after releasing preliminary second-quarter results that came in stronger than expectations. Alcoa said it expects adjusted earnings of 8 cents to 19 cents per share, more than the 7 cents per share anticipated by analysts polled by FactSet. Revenue is estimated to be in the range of $2.85 billion to $2.925 billion, topping the $2.83 billion analyst projection. Spotify \u2014 Shares of the audio streamer rose nearly 2% after Jefferies upgraded the stock to buy from hold and named it a top pick in the music industry. The investment firm said that Spotify has room to hike prices consistently in the coming years. MicroStrategy \u2013 MicroStrategy shares rose more than 4% after the bitcoin development company announced a 10-for-1 stock split . \u2014 CNBC’s Jesse Pound, Tanaya Macheel, Michelle Fox, Alex Harring, Hakyung Kim and Sarah Min contributed reporting<\/span><\/span><\/span><\/span><\/p>\n<\/div>\n<\/div>\n Source: www.cnbc.com<\/p>\n","protected":false},"excerpt":{"rendered":" Check out the companies making headlines before the bell. Delta Air Lines \u2014 Shares tumbled 9% after the airline issued a lower-than-expected sales growth forecast in the current quarter. Net income also fell 30% in the second quarter despite revenue reaching record highs. Costco Wholesale \u2014 Costco shares added nearly 3% after the wholesale club…<\/p>\n","protected":false},"author":1,"featured_media":82828,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","om_disable_all_campaigns":false,"WB4WB4WP_MODE":"","WB4WP_PAGE_SCRIPTS":"","WB4WP_PAGE_STYLES":"","WB4WP_PAGE_FONTS":"","WB4WP_PAGE_HEADER":"","WB4WP_PAGE_FOOTER":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[78],"tags":[],"class_list":["post-82827","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-finance"],"yoast_head":"\n