A handful of large-cap medical stocks hit new highs Monday as the sector continues to be a top performer in the market. Actavis (ACT) moved to a new high and is in buy range past a 272.85 buy point from a flat base. Shares broke out on Jan. 12 and are now about 4% past the entry. Monday, Actavis announced it will purchase Auden Mckenzie, a U.K.-based generic-drugmaker. Shares added 5.90 to 285.02.