*** NYMEX to increase silver and copper margins Friday ***
Thursday February 19, 3:30 pm ET
NEW YORK, Feb 19 (Reuters) - The New York Mercantile Exchange said Thursday that it will increase the margins on its COMEX Division silver and copper futures contracts at the close of business Friday.
The margins on each of the two contracts will be raised to $2,000 from $1,500 for clearing members and members and to $2,700 from $2,025 for customers, the exchange said in a press release.