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Stock options

Stock options corporate actions

Unusual contract size

Following recent corporate events, the table below highlights adjustments made to existing stock option contracts.

Unusual contract sizes : Updated 13 November 2008

Amsterdam Stock Options (Standard size 100)
Company	Mnemonic	Expiry month	Strike prices	Unusual contract size
Ahold	AHO	Dec 08	all	18
ASML Holding NV	ASO	Dec 08 Dec 09 Dec 10 Dec 11	all all all all	97 97 97 97
Fortis NV	FOO	Dec 08 Dec 09 Dec 10 Dec 11	all all all all	19 19 19 19
Heineken	HEX	Dec 08	all	25
KPN Telecom	KPO	Dec 08	all	2
Unilever	UOO	Dec 08 Dec 09 Dec 10	all all all	1 1 1
Vedior NV	VDR	Dec 08	all	67

Brussels Stock Options (Standard size 100)
Company	Mnemonic	Expiry month	Strike prices	Unusual contract size
Mobistar	MOB	Dec 08 Mar 09 Jun 09	40.74-66.67 40.74-66.67 40.74-59.26	108 108 108

London Stock Options (Standard size 1000)*
Company	Mnemonic	Expiry month	Strike prices	Unusual contract size
Alliance & Leicester plc ex event	LEI	Dec 08 Mar 09	408-1780 445-1112	359 359
Antofagasta	ATT	Dec 08 Mar 09	438-797 438-797	1004 1004
Barclays	BBL	Dec 08 Mar 09 Jun 09 Dec 09 Jun 10 Dec 10	234-857 234-545 234-779 273-857 273-351 273-545	1027 1027 1027 1027 1027 1027
HBOS	HAX	Dec 08 Mar 09 Jun 09 Dec 09 Jun 10 Dec 10	240-1199 240-719 240-1199 240-1199 240-320 240-799	1001 1001 1001 1001 1001 1001
Imperial tobacco group	IMP	Dec 08	1566-2785	1149
Reuters Group plc	RUT	Dec 08	1381-2072	348
Rio Tinto plc	RTZ	Dec 08	2251-3132	1022
Royal Bank of Scotland	RBS	Dec 08 Dec 08 Mar 09 Jun 09 Dec 09 Dec 09 Dec 10	240-412 429-687 240-378 240-618 240-412 457-572 240-343	1165 3495 1165 1165 1165 3495 1165
United Utilities Plc	UUL	Dec 08 Mar 09	553-869 553-790	1013 1013
Vodafone Group plc	VOD	Dec 08	90-150	1001

Paris Stock Options (Standard size 10)
No current unusual contract sizes

Paris Stock Options (Standard size 100)
Company	Mnemonic	Expiry month	Strike prices	Unusual contract size
Accor SA	AC1	Dec 08 Mar 09 Jun 09 Dec 09	all all all all	105 103 103 103
Air Liquide SA	AI1	Dec 08 Mar 09 Jun 09 Dec 09 Jun 10 Dec 10	all all all all all all	110 110 110 110 110 110
Crédit Agricole	CR1	Dec 08 Mar 09 Jun 09 Dec 09 Jun 10 Dec 10	all all all all all all	111 108 108 108 108 108
Société Générale SA	GL1	Dec 08 Jun 09 Dec 09 Jun 10 Dec 10 Dec 11 Dec 12	all all all all all all all	107 107 107 107 107 107 107
Veolia Environnement	VI1	Dec 08	all	102

* Liffe London's standard contract size is 1,000 shares. Following a corporate action, new series and expiry months are introduced with the standard contract size.