27.1 Whilst we will endeavour to comply with our obligations in a timely manner we will incur no liability whatsoever for any partial or nonperformance of our obligations by reason of any cause beyond our reasonable control including but not limited to any communications, systems or computer failure, market default, suspension, failure or closure, or the imposition or change (including a change of interpretation) of any law or governmental or regulatory requirement and we shall not be held liable for any loss you may incur as a result thereof.
27.2 Without prejudice to the generality of clause 27.1, the following events shall be considered as an event of force majeure:
27.2.1 where we are (in our opinion) unable to maintain an orderly market as a consequence of civil unrest, terrorism, strikes, riots or power or communication failure;
27.2.2 excessive volatility in the financial markets;
27.2.3 suspension, closure or liquidation of underlying markets.
27.3 Without prejudice to the generality of clause 27.1, in the event of force majeure we will be entitled to:
27.3.1 alter trading times;
27.3.2 alter the Margin Requirement;
27.3.3 close or cancel any open Contracts.