Stocks slide, JPM's CEO warns of more market volatility

Global growth fears are putting investors on edge. All three major averages  (^DJI, ^GSPC, ^IXIC)  were lower across the board in early trading, while gold (GCM16.CMX) rose and the yen strengthened to a 17-month high (USDJPY=X).

Central Bank Spectacular

Federal Reserve Chair Janet Yellen and former Fed chairs Ben Bernanke, Alan Greenspan, and Paul Volcker get set to share the stage in New York at 5:30 pm. EST.

Dimon's warning

A big warning from JPMorgan (JPM) chairman and CEO Jamie Dimon. In his annual shareholder letter, the big bank head noted that liquidity in many major markets has gotten worse and says volatility is here to stay.

Twitter's (TWTR) NFL deal earlier this week offered some hope for investors, but Morgan Stanley analyst Brian Nowak is not convinced. Nowak cut his price target on the stock to $16 from $18 a share and slashed user growth by half for the current year. In his note this morning he points out that new user trends "remain troubling" and that core user engagement on the platform "remains on the decline."  The investment firm also maintained its underweight rating on the stock.

Yahoo (YHOO) shares were lower in early trading following a Re/code report saying company documents reveal that the Internet giant has been in "a serious free fall." According to the report, Yahoo's revenue is expected to decline by 15% and earnings could drop more than 20%. Yahoo is the parent company of Yahoo Finance.

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Sprint (S), the nation's fourth-largest wireless carrier, signed a deal with several bankrupt entities to sell and then lease back network assets. The deal will help Sprint raise $2.2 billion in cash. 

Pacific Sunwear (PSUN) shares sank in early trading after the struggling teen retailer confirmed it's filing for bankruptcy protection. The company said it's working with Golden Gate Capital and Wells Fargo to assist its restructuring. Pacific Sunwear is not alone. Several other major retailers have filed for bankruptcy over the past year, including Sports Authority, American Apparel, Quicksilver and Wet Seal.

Bed Bath and Beyond (BBBY), the home goods retailer, delivered better-than-expected earnings and revenue for its holiday quarter. Even though profit fell from a year ago, revenue rose slightly and the company announced its first quarterly dividend.

'Panama Papers' Fallout

Here's the latest fallout from the Panama Papers: The U.S. Treasury Department plans to issue a long-delayed rule forcing banks to pursue the identities of people behind shell-company account holders.

It's a bird...it's a plane...it's a DRONE!

And get ready, more drones may be flying in the sky soon.  A federal advisory group has proposed rules to expand the use of small commercial drones, permitting them to fly over people and crowds. The Federal Aviation Administration currently prohibits most commercial use of drones over people.