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FTSE Mondo Visione Exchanges Index:

Nymex To Change Margins For Natural Gas Futures, Swap Futures, And e-miNY(sm) Futures Contracts

Date 27/08/2004

The New York Mercantile Exchange, Inc., announced today that it will change the margins on its Henry Hub natural gas futures, swap futures, and e–miNYsm futures contracts at the close of business on Monday.

The margins on the first two months of the standard–sized futures contract will decrease to $3,500 from $4,000 for clearing members, to $3,850 from $4,400 for members, and to $4,725 from $5,400 for customers.

Margins on the third and fourth months will increase to $4,000 and $4,250 from $3,750 for clearing members, to $4,400 and $4,675 from $4,125 for members, and to $5,400 and $5,738 from $5,063 for customers.

Margins on the seventh and eighth months will decrease to $3,000 and $2,000 from $4,250 for clearing members, to $3,300 and $2,200 from $4,675 for members, and to $4,050 and $2,700 from $5,738 for customers.

Margins on the ninth month will decrease to $2,500 from $3,000 for clearing members, to $2,750 from $3,300 for members, and to $3,375 from $4,050 for customers.

Margins on the 15th and 16th months will increase to $3,000 from $2,500 for clearing members, to $3,300 from $2,750 for members, and to $4,050 from $3,375 for customers.

Margins on the 19th and 20th months will decrease to $1,000 from $3,000 for clearing members, to $1,100 from $3,300 for members, and to $1,350 from $4,050 for members.

Margins on the 21st month and beyond will decrease to $1,000 from $1,500 for clearing members, to $1,100 from $1,500 for members and to $1,350 from $2,025 for customers.

Margins on all other months are unchanged.

Margins on the first two months of Henry Hub swap futures will decrease to $875 from $1,000 for clearing members, to $963 from $1,100 for members, and to $1,181 from $1,350 for customers.

Margins on the third and fourth months will increase to $1,000 and $1,063 from $938 for clearing members, to $1,100 and $1,169 from $1,031 for members, and to $1,350 and $1,434 from $1,266 for customers.

Margins for the seventh month will decrease to $750 from $1,063 for clearing members, to $825 from $1,169 for members and to $1,013 from $1,434 for customers. Margins on the eighth month will decrease to $500 from $1,063 for clearing members, to $550 from $1,169 for members, and to $675 from $1,434 for customers.

Margins on the ninth month will decrease to $625 from $750 for clearing members, to $688 from $825 for members, and to $844 from $1,013 for customers.

Margins on the 15th and 16th months will increase to $750 from $625 for clearing members, to $825 from $688 for members, and to $1,013 from $844 for customers.

Margins on the 19th and 20th months will decrease to $250 from $750 for clearing members, to $275 from $825 for members, and to $338 from $1,013 for customers.

Margins on the 21st month and beyond will decrease to $250 from $375 for clearing members, to $275 from $413 for members, and to $338 from $506 for customers.

Margins on all other months are unchanged.

Margins on both months of the e-miNYsm natural gas futures contract will decrease to $1,750 from $2,000 for clearing members, to $1,925 from $2,200 for members, and to $2,363 from $2,700 for customers.

Margins for intracommodity spreads involving the first or second months of the benchmark natural gas futures contract will decrease to $500 from $1,000 for clearing members, to $550 from $1,100 for members, and to $675 from $1,350 for customers.

Margins on spreads involving the 17th or 18th months will increase to $500 from $250 for clearing members, to $550 from $275 for members, and to $675 from $338 for customers.

The intra–commodity spread margins between all other months will remain unchanged.

Margins for the intracommodity spreads involving the first or second months of the Henry Hub swap futures contract will decrease to $125 from $250 for clearing members, to $138 from $275 for members, and to $169 from $338 for customers.

Margins on spreads involving the 17th and 18th months will increase to $125 from $63 for clearing members, to $138 from $69 for members, and to $169 from $84 for customers.

The intra–commodity spread margins between all other months will remain unchanged.