Notice to Members
Notice No. 307
06/09/2008
Margin Rate Changes for NY Harbor Gasoline Blendstock Contract, RBOB Gasoline – Financial Contract, RBOB Calendar Swap, and NYMEX RBOB miNY Gasoline Contract
Effective Date: Tuesday, June 10, 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 $8,750 $7,750 $9,625 $8,525 $11,813 $10,463
2 $8,250 $7,250 $9,075 $7,975 $11,138 $9,788
3 $7,500 $6,500 $8,250 $7,150 $10,125 $8,775
4 $7,250 $6,250 $7,975 $6,875 $9,788 $8,438


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 $4,375 $3,875 $4,813 $4,263 $5,906 $5,231
2 $4,125 $3,625 $4,538 $3,988 $5,569 $4,894
3 $3,750 $3,250 $4,125 $3,575 $5,063 $4,388
4 $3,625 $3,125 $3,988 $3,438 $4,894 $4,219


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 Tuesday, June 10, 2008.

One Long Tier 1 RB (1 * $8,750) = $8,750
One Short Tier 2 RB (1 * $8,250) = $8,250
Net Scan Risk ($8,750-$8,250) = $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