— Media
Bloomberg Opinion: The Bull Market Caught a Virus
More trading is taking place at the end of the day, including at the closing auction—or the final 4 p.m. trade—which determines end-of-day prices for thousands of stocks. From the start of this year through Friday, about 23% of trading volume in the 3,000 largest stocks by market value has taken place after 3:30 p.m., according to data from Pragma LLC. That’s compared with about 4% from 12:30 p.m. to 1 p.m.