Notice to Members
Notice No. 272
05/29/2008
Margin Rate Changes for NY Harbor Gasoline Blendstock Contract, RBOB Gasoline – Financial Contract, RBOB Calendar Swap and NYMEX RBOB miNY Gasoline Contract
Effective Date: Friday, May 30, 2008 (close of business)

Futures Contract: NY Harbor Gasoline Blendstock Contract, RBOB Gasoline – Financial Contract, RBOB Calendar Swap and NYMEX RBOB miNY™ Gasoline Contract

Contract Months: All Months


NYMEX Division Outright (Scan)  Margins on  New York Harbor Gasoline Blendstock (RBOB) Futures Contract (RB), RBOB Gasoline - Financial Contract  (RT) and RBOB Calendar Swap (RL)
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
1 $7,750 $7,500 $8,525 $8,250 $10,463 $10,125
2 $7,250 $7,000 $7,975 $7,700 $9,788 $9,450
3 $6,500 $6,250 $7,150 $6,875 $8,775 $8,438
4 $6,250 $6,000 $6,875 $6,600 $8,438 $8,100


NYMEX Division Outright (Scan) Margins on NYMEX miNY™ Gasoline (QU)
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
1 $3,875 $3,750 $4,263 $4,125 $5,231 $5,063
2 $3,625 $3,500 $3,988 $3,850 $4,894 $4,725
3 $3,250 $3,125 $3,575 $3,438 $4,388 $4,219
4 $3,125 $3,000 $3,438 $3,300 $4,219 $4,050


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 RB leg in Tier 1 and another in Tier 2 will have its requirement (at the clearing member rates) calculated at $ 700 starting on Friday, May 30, 2008.

One Long Tier 1 RB (1 * $7,750) = $7,750
One Short Tier 2 RB (1 * $7,250) = $7,250
Net Scan Risk ($7,750-$7,250) = $500
Spread Rate (1* $ 200) = + $200
Total Requirement   = $700
       
       
Summary      
Clearing Member (Maintenance Margin):     $700
Member Customer (Initial Margin):     $770
Non-Member Customer (Initial Margin):     $945

This notice supersedes all previous notices regarding outright margins for the NY Harbor Gasoline Blendstock Contract, RBOB Gasoline – Financial Contract, RBOB Calendar Swap and NYMEX RBOB miNY™ Gasoline Contracts.
Should you have any questions or require any further information, please contact exchangeinfo@nymex.com