6.2.1. any action, event or occurrence (including, but not limited to, any strike, riots or civil strife, terrorist acts, wars, natural disasters, accidents, fires, floods, storms, power outages, interruptions in the operation of communication equipment, software or electronic equipment, incorrect operation of any kind of equipment or software, the instability in the quote stream, interruptions in the operation of or the instability of liquidity providers, etc.), which, in the Company's reasonable opinion, led to the destabilization of the market or the markets for one or more assets (instruments);