<p style="text-align:start;" size="1" _root="[object Object]" __ownerid="undefined" __hash="undefined" __altered="false">Shares of movie theater chain AMC Entertainment and brick-and-mortar retailer GameStop have posted a stunning run this month as Reddit traders continue to plow into the highly shorted stocks despite still-bearish forecasts from analysts—one of several signs that risky market activity is still running full force.</p>
