Traders piled into an ETF that tracks twice the daily returns of the Nasdaq 100 at the fastest pace ever last week, driving a net inflow of $847 million into the ProShares Ultra QQQ ETF (ticker QLD).

where it emerged as the top trending ticker ahead of Friday’s trading session. Retail sentiment around the stock has flipped to ‘bullish’ from ‘bearish’ a day ago, along with an uptick ...

(Bloomberg) -- Traders snapped up bullish option bets Friday on exchange ... Call options were bought in iShares China Large-Cap ETF (ticker FXI) allowing the holders to purchase some 4 million ...