By Liz Moyer
Investing.com -- Sometimes a tweet is all it takes.
Eastman Kodak Co (NYSE:KODK) shares spiked 23% on Wednesday after the company's CEO sent out a tweet touting a previously announced partnership with Microsoft (NASDAQ:MSFT) to build a business software portfolio.
Kodak announced the expanded partnership in December. Its shares are up 255% in the last year. Wednesday's jump briefly led to a halt on volatility.