TIFFE-SPAN Parameters

The following parameters are effective from 18th March 2003 to 16th June 2003, except for Three-month Euroyen LIBOR futures which is effective from 19th March 2003 to 17th June 2003.

***From 17th December 2002 to 17th March 2003 (Three-month LIBOR futures:From 18th December 2002 to 18th March 2003)

1. Parameters for TIFFE-SPAN Margin Calculation

Parameters 3-Month Euroyen (EY)
& its Options (EYO)
3-Month LiborEuroyen (LEY) USD-JPY
Currency (UD)

Scan Range

Mth 1,2 : JPY 7,500 (3 ticks)

Mth 3,4 : JPY 7,500 (3 ticks)

Mth 5-12: JPY 7,500 (3 ticks)

All Mths:JPY 14,000
(28 ticks)

Volatility Range 4 % -

Tier Number
Tier Configuration Tier = 3

Tier 1 : Mth 1,2

Tier 2 : Mth 3,4

Tier 3 : Mth 5-12

Tier = 1

Inter-month Spread
Charge Rate

Tier 1-1 : JPY 2,500 (1 ticks)

Tier 2-2 : JPY 2,500 (1 ticks)

Tier 3-3 : JPY 2,500 (1 ticks)

Tier 1-2 : JPY 2,500 (1 ticks)

Tier 1-3 : JPY 2,500 (1 ticks)

Tier 2-3 : JPY 2,500 (1 ticks)

JPY 6,000
(12 ticks)

Expiration Charge
Rate/Maintenance *
(Initial) - JPY 14,000
(28 ticks)

Intercommodity Spread
Credit Rate 43%
(between EY and LEY) -

Short Option
Minimum Charge JPY 200 (per contract) -

Initial to
Manitenance Ratio
(Initial Margin)
1.35
(Mth 1,2: JPY 10,125)
(Mth 3,4: JPY 10,125)
(Mth 5-12: JPY 10,125) 1.35
(JPY 18,900)

* Expiration Charge Rate is used on 16th and 17th June 2003.

2. Triggers on Emergency Margin Call

Triggered Change*** Mth 1,2 : 1.5ticks
Mth 3,4 : 1.5 ticks
Mth 5-12: 1.5 ticks

Extreme move 50 ticks

** Emergency Margin Call is triggered in case that the leading month moves over the above numbers.

Triggered Change***	Mth 1,2 : 1.5ticks Mth 3,4 : 1.5 ticks Mth 5-12: 1.5 ticks
Extreme move	50 ticks