Twitter (TWTR) Correction in Progress?

Twitter (TWTR) fell 13% on Friday, 02013.12.27, closing at $63.75. 52-week range: $38.80 - $74.73. Pre-market trading today (02013.12.30) hints that TWTR might fall some more when the market opens. TWTR started this month at $41.57, so it's had a great month despite Friday's huge decline.