yes, the Swiss Central Bank announcement of the de-pegging of the Euro created a unusual 2000+ pip upside gap on Swiss, causing all pairs with CHF, such as EURCHF, USDCHF, GBPCHF, to tank thousands of pips, wiping out many accounts that traded the wrong side of this pair, and also some brokers, such as Excel today, because Excel's STP model makes them liable to the banks for millions of dollars when their own wrong-sided CHF client accounts get wiped out and owe them millions of dollars.
It was a pure disaster, and hard to see coming. Thankfully, because all accounts were segregated, none of Excel clients (other than ones who suffered the loss on CHF) are impacted because of this event. I did not trade CHF, but I had many accounts at Excel, many of them with great track records. Now I am forced to withdraw all the money back home and start again at a new brokerage. A damn shame.
“Ah, but a man's reach should exceed his grasp, or what's a heaven for?” Robert Browning