SG Cowen Securities Corp. began covering Ticketmaster (TMCS) with a "buy" rating on Aug. 6, when the stock sold for $14. (On Aug. 15, it closed at $16.) Cowen's 12- to 18-month price target is $20. The positives: The ticketing service "is the leader in each of its businesses;" has opportunities to expand, including internationally; and has multiple revenue streams that insulate it from slowdowns. Cowen likes the online dating business that Ticketmaster's Match.com seeks to lead, bolstered by a recent deal to provide personal ads to America Online's Love@AOL area.