In the far past, which its probably the same now, back when this was .04-.06/share... it was revealed that they delay reports and do not mention the name (stick in agreement, but reason is) for their competitors will undercut them if they find out too soon before deal closes. NDR is working on deals all the time there-by blah, blah...
Perhaps yesterday end-of-day rise was from: ichi, ni, san, yon, go, roku, nana, hachi, kyuu, juu (1-10 in Japanese... 10 Japs buying in... Actually the dude that owns 80% of Sprint and majority of Softbank that owns 67% of T-Mobile... could finance this deal in his sleep, for example).