Notice to Members
Notice No. 102
03/03/2003
Margin Rate Change for Natural Gas Futures (NG), Henry Hub Swap (NN), and Natural Gas e-miNY (QG) Contracts
Effective Date: Tuesday, March 4, 2003 (close of business)
Futures Contracts: Natural Gas, Henry Hub Swap, and e-miNY Natural Gas Contracts
Contract Months: Tier 1 NG, NN, and QG Contract Months

NYMEX Division Outright Margins on Natural Gas Futures (NG)
 
Clearing Member
Member Customer
Non-Member Customer
 
New
Old
New
Old
New
Old
Tier 1 (1st Nearby Month):
$12,500
$11,000
$13,750
$12,100
$16,875
$14,850
Tier 2 (2nd Nearby Month):
$10,500
$9,000
$11,550
$9,900
$14,175
$12,150
Tier 3 (3rd-6th Nearby Month):
$6,000
$6,000
$6,600
$6,600
$8,100
$8,100
Tier 4 (7th-12th Nearby Month):
$2,500
$2,500
$2,750
$2,750
$3,375
$3,375
Tier 5 (Greater than 12th Nearby):
$2,500
$2,500
$2,750
$2,750
$3,375
$3,375

NYMEX Division Outright Margins on Henry Hub Swap Futures (NN)
 
Clearing Member
Member Customer
Non-Member Customer
 
New
Old
New
Old
New
Old
Tier 1 (1st Nearby Month):
$3,125
$2,750
$3,438
$3,025
$4,219
$3,713
Tier 2 (2nd Nearby Month):
$2625
$2,250
$2,888
$2,475
$3,544
$3,038
Tier 3 (3rd-6th Nearby Month):
$1,500
$1,500
$1,650
$1,650
$2,025
$2,025
Tier 4 (7th-12th Nearby Month):
$625
$625
$688
$688
$844
$844
Tier 5 (Greater than 12th Nearby):
$625
$625
$688
$688
$844
$844

NYMEX Division Outright Margins on Natural Gas e-miNY Futures (QG)
 
Clearing Member
Member Customer
Non-Member Customer
 
New
Old
New
Old
New
Old
Tier 1 (1st Nearby Month):
$5,000
$4,400
$5,500
$4,840
$6,750
$5,940
Tier 2 (2nd Nearby Month):
$4,200
$3,600
$4,620
$3,960
$5,670
$4,860

Current systems calculate the margin requirement for spread positions by first determining the "Scan Risk" and then multiplying the number of spreads by a rate set by the Exchange. Scan Risk is determined by netting the outright margin required for each leg of a spread. Spreading between differently margined contracts results in a higher spread margin than between equally margined contracts. Below is provided an example where the legs of a spread are margined differently.

Scan Risk Example at Clearing Member Rates
A spread consisting of one NG leg in Tier 1 and another in Tier 4 will have its requirement (at the clearing member rates) calculated at $12,000 starting on Tuesday, March 4, 2003.

One Long Tier 1 NG (1 * $2,500) =   $12,500
One Short Tier 4 NG (1 * $2,500) = - $2,500
Net Scan Risk ($12,500-$2,500) =   $10,000
Spread Rate (1* $2000) = + $2,000
Total Requirement   =   $12,000

Summary
Clearing Member (Maintenance Margin): $12,000
Member Customer (Initial Margin): $13,200
Non-Member Customer (Initial Margin): $16,200


Should you have any questions regarding these changes, please contact Arthur McCoy at (212) 299-2928 or Joe Sanguedolce at (22) 299-2855. This notice supersedes all previous notices regarding margins for the NYMEX Natural Gas, NYMEX Henry Hub Swap, and the e-miNY Natural Gas futures contracts.

Should you have any questions or require any further information, please contact exchangeinfo@nymex.com