Notice to Members
Notice No. 377
09/01/2005
Margin Rate Changes for Heating Oil (HO) and New York Harbor Heating Oil Calendar Swap (MP)
EFFECTIVE DATE: Friday, September 2, 2005 (close of business)

FUTURES CONTRACTS: Heating Oil (HO) and NY Harbor Heating Oil Calendar Swap (MP)

CONTRACT MONTHS: Tiers 1 and 2


NYMEX Division Outright (Scan) Margins on Heating Oil (HO) and New York Heating Oil Calendar Swap (MP)
 
Tiers
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
1
$7,000
$5,500
$7,700
$6,050
$9,450
$7,425
2
$6,250
$5,250
$6,875
$5,775
$8,438
$7,088
3
$4,750
$4,750
$5,225
$5,225
$6,413
$6,413
4
$4,250
$4,250
$4,675
$4,675
$5,738
$5,738


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 HO leg in Tier 1 and another in Tier 3 will have its requirement (at the clearing member rates) calculated at $2,500 starting on Friday, September 2, 2005.

One Long Tier 1 HO (1 * $5,500) = $7,000
One Short Tier 3 HO (1 * $4,750) = $4,750
Net Scan Risk ($5,500-$4,750) = $2,250
Spread Rate (1* $ 250) = + $250
Total Requirement   = $2,500


Summary  
Clearing Member (Maintenance Margin): $2,500
Member Customer (Initial Margin): $2,750
Non-Member Customer (Initial Margin): $3,375


This notice supersedes all previous notices regarding margin rates and tiers for Natural Gas, Henry Hub Swaps, e-miNY, Henry Hub Swing Swaps and Henry Hub Penultimate Swap Contracts.
Should you have any questions or require any further information, please contact exchangeinfo@nymex.com