U.S. stock futures down, Nasdaq 100 futures drop over 1%. ON Semi to acquire Synaptics, ON shares fall 13%. Other stocks also down in pre-market.

June 25 : Onsemi said on Thursday it had agreed to acquire Synaptics in an all-stock deal valued at about $7 billion, potentially broadening the chipmaker's presence in the…

Onsemi will acquire Synaptics in an all-stock transaction worth $7 billion. The companies expect annual synergies of $200 million.