Notice to Members
Notice No. 428
09/22/2005
Margin Rate Changes for Natural Gas Futures, Henry Hub Swap Futures, Natural Gas e-miNY Futures, Henry Hub Swing Swap Futures, and Henry Hub Penultimate Swap Contracts

EFFECTIVE DATE: Friday, September 23, 2005(close of business)

FUTURES CONTRACTS: Natural Gas, Henry Hub Swaps, e-miNY, Henry Hub Swing Swaps and Henry Hub Penultimate Swap Contracts

CONTRACT MONTHS: Tier 1,2 ,3 and 4

Note: The revised margins are in bold.

 

NYMEX Division Outright (Scan) Margins on Natural Gas Futures (NG)

Tiers

Clearing Member / Maintenance Margin

Member Customer Initial Margin

Non-Member Customer Initial Margin

 

New

Old

New

Old

New

Old

1

$16,000

$13,000

$17,600

$14,300

$21,600

$17,550

2

$15,000

$12,500

$16,500

$13,750

$20,250

$16,875

3

$14,500

$12,500

$15,950

$13,750

$19,575

$16,875

4

$14,000

$12,000

$15,400

$13,200

$18,900

$16,200

5

$5,750

$5,750

$6,325

$6,325

$7,763

$7,763

6

$3,250

$3,250

$3,575

$3,575

$4,388

$4,388

7

$3,000

$3,000

$3,300

$3,300

$4,050

$4,050

8

$2,000

$2,000

$2,200

$2,200

$2,700

$2,700

9

$1,500

$1,500

$1,650

$1,650

$2,025

$2,025

 

 

NYMEX Division Outright (Scan) Margins on Henry Hub Swap Futures (NN)

Tiers

Clearing Member / Maintenance Margin

Member Customer Initial Margin

Non-Member Customer Initial Margin

 

New

Old

New

Old

New

Old

1

$4,000

$3,250

$4,400

$3,575

$5,400

$4,388

2

$3,750

$3,125

$4,125

$3,438

$5,063

$4,219

3

$3,625

$3,125

$3,988

$3,438

$4,894

$4,219

4

$3,500

$3,000

$3,850

$3,300

$4,725

$4,050

5

$1,438

$1,438

$1,581

$1,581

$1,941

$1,941

6

$813

$813

$894

$894

$1,097

$1,097

7

$750

$750

$825

$825

$1,013

$1,013

8

$500

$500

$550

$550

$675

$675

9

$375

$375

$413

$413

$506

$506

 

NYMEX Division Outright (Scan) Margin on Natural Gas e-miNY Futures (QG)

Tiers

Clearing Member / Maintenance Margin

Member Customer Initial Margin

Non-Member Customer Initial Margin

 

New

Old

New

Old

New

Old

1

$8,000

$6,500

$8,800

$7,150

$10,800

$8,775

2

$7,500

$6,250

$8,250

$6,875

$10,125

$8,438

 

NYMEX Division Outright (Scan) Margin on Henry Hub SwingSwap Futures (SN)

Tiers

Clearing Member / Maintenance Margin

Member Customer Initial Margin

Non-Member Customer Initial Margin

 

New

Old

New

Old

New

Old

1

$4,000

$3,250

$4,400

$3,575

$5,400

$4,388

 

NYMEX Division Outright (Scan) Margins on Henry Hub Penultimate Swap (NP)

Tiers

Clearing Member / Maintenance Margin

Member Customer Initial Margin

Non-Member Customer Initial Margin

 

New

Old

New

Old

New

Old

1

$4,000

$3,250

$4,400

$3,575

$5,400

$4,388

2

$3,750

$3,125

$4,125

$3,438

$5,063

$4,219

3

$3,625

$3,125

$3,988

$3,438

$4,894

$4,219

4

$3,500

$3,000

$3,850

$3,300

$4,725

$4,050

5

$1,438

$1,438

$1,581

$1,581

$1,941

$1,941

6

$813

$813

$894

$894

$1,097

$1,097

7

$750

$750

$825

$825

$1,013

$1,013

8

$500

$500

$550

$550

$675

$675

9

$375

$375

$413

$413

$506

$506

 

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 NG leg in Tier 1 and another in Tier 5 will have its requirement (at the clearing member rates) calculated at $11,250 starting on Friday, September 23, 2005.

 

One Long Tier 1 NG (1 * $16,000) = $16,000 One Short Tier 5 NG (1 * $ 5,750) = $ 5,750

Net Scan Risk ($16,000-$5,750) = $10,250

Spread Rate (1* $ 1000) = + $ 1,000

Total Requirement = $11,250

 

Summary

Clearing Member (Maintenance Margin): $ 11,250

Member Customer (Initial Margin): $ 12,375

Non-Member Customer (Initial Margin): $ 15,188

 

This notice supersedes all previous notices regarding margin rates and 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