Notice to Members
Notice No. 422
09/21/2005
Margin Rate Changes for Heating Oil (HO) and New York Harbor Heating Oil Calendar

EFFECTIVE DATE: Thursday, September 22, 2005 (close of business)

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

CONTRACT MONTHS: All Months


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
$8,000
$6,000
$8,800
$6,600
$10,800
$8,100
2
$7,000
$5,250
$7,700
$5,775
$9,450
$7,088
3
$6,000
$4,750
$6,600
$5,225
$8,100
$6,413
4
$5,500
$4,250
$6,050
$4,675
$7,425
$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 $2,250 starting on Thursday, September 22, 2005.

One Long Tier 1 HO (1 * $8,000) = $8,000
One Short Tier 3 HO (1 * $6,000) = $6,000
Net Scan Risk ($6,000-$4,750) = $1,250
Spread Rate (1* $ 250) = + $250
Total Requirement   = $2,250


Summary  
Clearing Member (Maintenance Margin): $2,250
Member Customer (Initial Margin): $2,475
Non-Member Customer (Initial Margin): $3,038


This notice supersedes all previous notices regarding outright margins for Heating Oil and NY Harbor Heating Oil Calendar Swap.
Should you have any questions or require any further information, please contact exchangeinfo@nymex.com