but you should know that a 100%-150% rise is not a new thing and it certainly was not only last year.
2011 price went from $0.3 to $3 (900%)
2012 price went from $3 to $14 (360%)
2013 price went from $14 to
the Mt Gox correction took some time but before that price was rising the same way.
2015 started from $200ish and ended at $450 (125%)
and 2016 from $450 to $1166 (160%)
p.s. the numbers may be a tiny bit off the mark, check price history for accuracy!
Halving, plus ETF, plus capital flight from China (though that part might be abating because of PBOC actions).