Altice has filed an S1 document at the US SEC, a form which shows it intends to launch an Initial Public Offering (IPO). Most observers are saying that it will likely end up going to market at a price which will raise $1 billion on a corporate valuation of around $20 billion, but until a day or so before the offering, these details will remain blank. The two separate holdings in Altice USA are Cablevision and what it now calls Cequel, its new name for Suddenlink. Their combined revenues were $9.1 billion in 2016, up by $200 million over 2015, yielding a net loss of $656 million, which the S1 suggests equates to a EBITDA of $3.35 billion. So the…