Despite trading restrictions, GameStop climbed as much as 39% to $483 at 10 a.m. in New York Thursday.
Swarms of traders crowded in internet chatrooms are storming long positions of heavily shorted companies.
A "mob" of day traders organizing on social media and web communities is overwhelming traditional activist investors.
The stocks that appeal to investors looking for a steady stream of income are back in favor.
Biotech fans are betting on emerging platforms to treat diseases, as well as next-generation medicines like gene therapies.
There are 14 states at or approaching 200 or more hospitalizations per million.
Exchange-traded fund investors are betting that health-care companies are poised for gains during the pandemic.
Shares of U.S. drugmakers and diagnostic companies have outperformed amid hope for a means to combat the virus.
Bernie Sanders’s potential ascendancy is something Wall Street has warned could impact the health sector.
Credit Suisse thinks strong trends are boons for high-flying animal health companies.