 "wall street")
Two professors have just lent academic heft to a suspicion running rampant on Wall Street all year: The options market is whipsawing share prices like never before.
As retail investors spur a boom in derivatives trading to rival actual stock volumes, dealers rushing to hedge themselves are said to have fuelled the 2020 melt-up in tech names from Netflix Inc. to Microsoft Corp. They’re also suspected of amplifying two big drawdowns in September and October.
New research sheds light on just how this dynamic tends to play out.
A study from the Imperial College Business School and the University of St Gallen has
