Airline stocks drop following a weekend attack on two key Saudi Arabian oil facilities that pushes oil prices to briefly their highest since the 1991 Gulf War, prompting concern that jet-fuel costs are likely headed higher.

Here are Thursday's top research calls, including upgrades for Citrix, JPMorgan, PayPal and Wells Fargo, and a downgrade for Buffalo Wild Wings.

The merger is a stock-for-stock transaction.

Dismantling of the merger may have more to do with an activist hedge fund's agitation than regulatory concerns. Expect the Fed to OK mid-sized bank deals in the coming months

Here are Wednesday's top research calls, including a downgrade for Cardinal Health, an upgrade for Monster Beverage and new coverage of Alphabet.

"While these inventory actions put significant pressure on our near-term profitability, we're confident this was the right long-term decision," said CEO Brian Cornell.

U.S. retirees may get a big benefit with the next Social Security cost-of-living adjustment for 2023.

Core retail sales improved firmly in July, but the headline figure was essentially unchanged as gas prices tumbled from their June record highs.

E-commerce giant Amazon is the subject of a major investigation linked to its Prime service. It's not sitting idly by.