Scrutinize the data and tweets to envisage if the closing price of $ppl will swell or contract at 2014-01-17. Please affirm either Rise or Fall.
Context: date,open,high,low,close,adj-close,inc-5,inc-10,inc-15,inc-20,inc-25,inc-30
2014-01-03,1.4,1.5,-0.7,-0.1,-0.1,0.7,0.5,0.0,0.2,0.6,0.8
2014-01-06,0.2,0.4,-0.4,0.4,0.4,0.2,0.2,-0.3,-0.3,0.1,0.3
2014-01-07,-0.5,0.1,-0.9,0.6,0.6,-0.4,-0.3,-0.7,-0.9,-0.5,-0.3
2014-01-08,0.5,0.7,-0.4,-0.9,-0.9,0.2,0.5,0.2,-0.0,0.3,0.5
2014-01-09,0.0,0.2,-0.4,0.2,0.2,0.1,0.3,0.2,-0.2,0.0,0.3
2014-01-10,-1.3,0.2,-1.3,2.0,2.0,-1.4,-1.5,-1.7,-2.0,-1.9,-1.6
2014-01-13,0.0,0.6,-0.5,-0.5,-0.5,-0.7,-0.9,-1.0,-1.4,-1.4,-1.1
2014-01-14,0.3,0.7,-0.1,-0.3,-0.3,-0.3,-0.5,-0.6,-0.9,-1.1,-0.8
2014-01-15,1.1,1.3,-0.0,-1.2,-1.2,0.9,0.5,0.6,0.3,0.0,0.3
2014-01-16,-0.4,0.2,-0.6,0.6,0.6,0.5,0.0,0.0,-0.2,-0.5,-0.3

2014-01-07: $ppl united states : portage biotech inc. declares acquisition of 54% equity in ... 
Answer:
Fall