Stitch Fix plunges after downbeat revenue forecast
** Shares of online personal styling service firm Stitch Fix SFIX.O fall 19% to $2.3 in premarket trading
** Co forecasts Q1 revenue between $323 mln and $328 mln, lower than analysts' estimates of $343.2 mln - LSEG data
** SFIX also posts Q4 revenue of $324.4 mln, missing analysts' estimates of $325.6 mln as active clients decline
** 2 of 6 brokerages rate the stock "buy" or higher, 3 "hold" and 1 "sell"; their median PT is $3.50 - LSEG-compiled data
** Up to last day's close, shares are down 46.3% YTD