Five-Cent Meme Stock Makes Up 15% of Trading on US Exchanges

Shares of tiny Healthcare Triangle Inc. stood out as the most actively-traded name on US exchanges on Thursday, another example of how investor exuberance is fueling wild gyrations throughout the equity market.

The little-known healthcare information technology company saw its stock price more than double to just above five cents, with over 3 billion shares changing hands. That was equivalent to about 15% of the total shares traded on US exchanges for the day, data compiled by Bloomberg show.