Notice to Members
Notice No. 289
06/03/2008
Outright (SCAN) Margin Rate Changes for Financially Settled Electricity Contracts
Effective Date: Wednesday, June 4, 2008 (close of business)

Futures Contract:
NYISO Zone G – Peak (KG), NYISO Zone J – Peak (KJ), PJM Western Hub LMP Peak Monthly (JM), Dow Jones Palo Verde Electricity Prices Index Swap (DP), ERCOT North Peak Swap Contract (MT), NYISO Zone A LBMP – Off Peak (KB), NYISO Zone G – Off Peak (KH), NYISO Zone J – Off Peak (KK), ISO New England Internal Hub – Off Peak (KI) PJM Western Hub LMP Off – Peak Monthly (JP), Northern Illinois Hub – Off Peak (UO), and AEP-Dayton Hub – Off Peak (VP)
Contract Months: See Below


NYMEX Division Outright (Scan) Margins on NYISO Zone G – Peak (KG)
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
Tier 1: 1st Nearby $3,000 $2,500 $3,300 $2,750 $4,050 $3,375
Tier 2: 2nd - 6th Nearby $4,000 $3,000 $4,400 $3,300 $5,400 $4,050
Tier 3: 7th - 11th Nearby $4,000 $3,000 $4,400 $3,300 $5,400 $4,050
Tier 4: Greater than 11th Nearby $3,000 $3,000 $3,300 $3,300 $4,050 $4,050


NYMEX Division Outright (Scan) Margins on NYISO Zone J – Peak (KJ)
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
Tier 1: 1st Nearby $3,000 $3,000 $3,300 $3,300 $4,050 $4,050
Tier 2: 2nd - 6th Nearby $4,000 $3,000 $4,400 $3,300 $5,400 $4,050
Tier 3: 7th - 11th Nearby $4,000 $3,000 $4,400 $3,300 $5,400 $4,050
Tier 4: Greater than 11th Nearby $3,000 $3,000 $3,300 $3,300 $4,050 $4,050


NYMEX Division Outright (Scan) Margins on Dow Jones Palo Verde Electricity Prices Index Swap (DP)
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
Tier 1: 1st Nearby $8,000 $7,000 $8,800 $7,700 $10,800 $9,450
Tier 2: 2nd - 6th Nearby $8,000 $7,000 $8,800 $7,700 $10,800 $9,450
Tier 3: 7th - 11th Nearby $7,000 $7,000 $7,700 $7,700 $9,450 $9,450
Tier 4: Greater than 11th Nearby $4,000 $4,000 $4,400 $4,400 $5,400 $5,400


NYMEX Division Outright (Scan) Margins on NYISO Zone A – Off Peak (KB)
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
Tier 1: 1st Nearby $5,500 $4,500 $6,050 $4,950 $7,425 $6,075
Tier 2: 2nd - 6th Nearby $5,000 $3,500 $5,500 $3,850 $6,750 $4,725
Tier 3: 7th - 11th Nearby $4,500 $4,500 $4,950 $4,950 $6,075 $6,075
Tier 4: Greater than 11th Nearby $4,000 $4,000 $4,400 $4,400 $5,400 $5,400


NYMEX Division Outright (Scan) Margins on NYISO Zone G – Off Peak (KH)
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
Tier 1: 1st Nearby $5,500 $5,000 $6,050 $5,500 $7,425 $6,750
Tier 2: 2nd - 6th Nearby $5,000 $3,500 $5,500 $3,850 $6,750 $4,725
Tier 3: 7th - 11th Nearby $4,500 $4,500 $4,950 $4,950 $6,075 $6,075
Tier 4: Greater than 11th Nearby $4,000 $4,000 $4,400 $4,400 $5,400 $5,400


NYMEX Division Outright (Scan) Margins on NYISO Zone J – Off Peak (KK)
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
Tier 1: 1st Nearby $6,000 $5,000 $6,600 $5,500 $8,100 $6,750
Tier 2: 2nd - 6th Nearby $5,500 $3,500 $6,050 $3,850 $7,425 $4,725
Tier 3: 7th - 11th Nearby $4,000 $3,500 $4,400 $3,850 $5,400 $4,725
Tier 4: Greater than 11th Nearby $3,000 $3,000 $3,300 $3,300 $4,050 $4,050


NYMEX Division Outright (Scan) Margins on PJM Western Hub LMP Off Peak Monthly (JP)
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
Tier 1: 1st Nearby $5,000 $6,000 $5,500 $6,600 $6,750 $8,100
Tier 2: 2nd - 6th Nearby $4,000 $4,000 $4,400 $4,400 $5,400 $5,400
Tier 3: 7th - 11th Nearby $2,500 $2,500 $2,750 $2,750 $3,375 $3,375
Tier 4: Greater than 11th Nearby $2,500 $2,500 $2,750 $2,750 $3,375 $3,375


NYMEX Division Outright (Scan) Margins on Northern Illinois Hub – Off Peak (UO)
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
Tier 1: 1st Nearby $3,000 $4,000 $3,300 $4,400 $4,050 $5,400
Tier 2: 2nd - 6th Nearby $1,500 $1,500 $1,650 $1,650 $2,025 $2,025
Tier 3: 7th - 11th Nearby $1,500 $1,500 $1,650 $1,650 $2,025 $2,025
Tier 4: Greater than 11th Nearby $1,500 $1,500 $1,650 $1,650 $2,025 $2,025


NYMEX Division Outright (Scan) Margins on AEP-Dayton Hub – Off Peak (VP)
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
Tier 1: 1st Nearby $3,000 $3,500 $3,300 $3,850 $4,050 $4,725
Tier 2: 2nd - 6th Nearby $2,500 $2,500 $2,750 $2,750 $3,375 $3,375
Tier 3: 7th - 11th Nearby $2,500 $2,500 $2,750 $2,750 $3,375 $3,375
Tier 4: Greater than 11th Nearby $1,500 $1,500 $1,650 $1,650 $2,025 $2,025


NYMEX Division Outright (Scan) Margins on PJM Western Hub LMP On Peak Monthly (JM)
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
JM (Tier 1 - 1st Nearby) $15,000 $10,000 $16,500 $11,000 $20,250 $13,500
JM (Tier 2 - 2nd - 4th Nearby) $7,000 $7,500 $7,700 $8,250 $9,450 $10,125
JM (Tier 3 - 5th - 6th Nearby) $6,000 $6,000 $6,600 $6,600 $8,100 $8,100
JM (Tier 4 - 7th - 8th Nearby) $4,500 $4,500 $4,950 $4,950 $6,075 $6,075
JM (Tier 5 - 9th - 10th Nearby) $3,500 $3,500 $3,850 $3,850 $4,725 $4,725
JM (Tier 6 - 11th - 12th Nearby) $3,000 $3,000 $3,300 $3,300 $4,050 $4,050
JM (Tier 7 - 13th - 16th Nearby) $4,000 $4,000 $4,400 $4,400 $5,400 $5,400
JM (Tier 8 - Greater than 16th Nearby) $3,500 $3,500 $3,850 $3,850 $4,725 $4,725


NYMEX Division Outright (Scan) Margins on ERCOT North Peak Swap (Platts Megawatt Daily) Contract (MT)
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
 
New
Old
New
Old
New
Old
MT $10,000 $7,000 $11,000 $7,700 $13,500 $9,450


This notice supersedes all previous notices regarding margin rates for the Electricity Futures contracts listed above.
Should you have any questions or require any further information, please contact exchangeinfo@nymex.com