Snap Inc (NYSE: SNAP) stock traded lower by more than 5.7 percent on Monday following a downgrade by Jefferies for the maker of the popular Snapchat app.

Nvdia Corporation (Nasdaq: NVDA) opened the week at new all-time highs on Monday after the company announced two new high-profile autonomous vehicle partners.

Even with a sluggish U.S. retail market dragging it down, Nike Inc (NYSE: NKE) stock still managed to deliver a 20 percent gain for investors in the past year. Now that analysts see signs of stabilization in the U.S. athletic apparel market, Nike has several positive catalysts that could drive the stock to new highs in 2018.

American companies should get a huge shot in the arm from the new tax cut plan, but perhaps none more than Apple, Inc. (Nasdaq: AAPL). In fact, if Apple is ever going to make a big splash with a huge blockbuster buyout, some analysts are speculating it’s now or never.

Mark Zuckerberg says he wants to “fix” Facebook Inc (Nasdaq: FB) in 2018. Zuckerberg’s New Year’s resolution sounds simple enough, but investors will be watching closely to see if he sticks to his pledge and how it may impact Facebook’s business.

Sears Holdings Corp (Nasdaq: SHLD) is closing another 103 stores in an effort to keep its business alive in an increasingly difficult environment for department store retailers. The store closings are part of Sears’ multi-year cost-cutting efforts, but the company’s core business continues to deteriorate.

With Square Inc (NYSE: SQ) stock up 175 percent in the past year, it’s understandable for investors to be concerned about the stock’s ballooning valuation. However, Buckingham Research Group analyst Chris Brendler says Square simply has too many positive long-term trends for investors to get hung up on its steep share price.

Intel Corporation (Nasdaq: INTC) is at risk of losing market share as investors sell off INTC stock after two large security vulnerabilities were discovered in the company’s computer chips.

McDonald’s Corporation (NYSE: MCD) is rolling out its revamped dollar menu, with items priced in $1, $2 and $3 tiers. Shareholders are hoping its newly-launched value menu will make the restaurant’s stock a value as well, and analysts are optimistic about the menu’s potential impact.

Macy’s Inc (M) investors likely want to forget about most of 2017, but the stock has gained some traction in the past three months on investor optimism that the company could produce some relatively strong holiday shopping season numbers. On Thursday, Macy’s announced yet another round of store closings as part of its cost-cutting initiative and…