Comex battle with Nymex on electronic metals venue

The sometimes contentious relations between New York Mercantile Exchange (Nymex) and members of its subsidiary exchange, Comex, especially over electronic trading of metals, could limit Nymex's efforts to shift metals to side-by-side electronic trading as planned for the third quarter.

Executives at both divisions were last week continuing negotiations to clear the way for electronic trading on Chicago Mercantile Exchange's Globex trading...