By Anna Prior

Among the companies with shares expected to actively trade in Wednesday's session are Frontline Ltd. (FRO, FRO.LN), Jos. A. Bank Clothiers Inc. (JOSB) and Dycom Industries Inc. (DY).

Frontline's second-quarter loss narrowed amid one-time gains as the oil tanker company's operating expenses also declined. Shares slid 7.9% to $3.40...