Template:M summ Equity Derivatives 12.1(a)

Break these Extraordinary Events into four categories:

• Corporate action thingies: (generally) benign but unscheduled matters of corporate structure concerning the management of specific underlying Shares, that change the economic proposition represented by those Shares, and not the equity derivative contract. So: Mergers, Tender Offers;
• Index adjustments: Equivalent measures that relate to an underlying Index - collectively Index Adjustment Events. So:

• Index Modification: Changes in the calculation methodology for the Index
• Index Cancellation: Where Indexes are discontinued with replacement;
• Index Disruption: disruption in the calculation and publication of Index values;

• Negative external events relating to underlying Issuers: Nationalizations, Insolvency, Delisting of underlying Issuers;