A year after meme mania broke out, Wall Street’s still obsessing over what day-traders are up to.
S&P Dow Jones Indices said Thursday it is launching gauges that will measure daily sentiment on Twitter in a bid to get a grip on what “everyone” is thinking. Two new indices will be based on analyses of tweets that contain so-called “$cashtags,” which Twitter users deploy to reference stock symbols on the social-media platform.
