ross
wow....you really never think about your comments do you? The point about much legislation (especially FSA) is that it works both ways... if we allow clients to trade on a bad price then... oh dear... all those poor people with open positions whose stop would have been activated by the price must also be executed.
when the underlying market widens we continue to quote our tight spreads. So I am not sure what your problem here is. If we widened our prices on wider underlying spreads the clients would not get any better prices ... far from it.... they would get much worse spread AND have stops activated on the sudden spread widening... I can imagine the kind of comments we would get on this thread if we did such a thing.
If a REAL widened spread (as opposed to an exchange error, convention in quoting error, or error in our system) occurs in the underlying market then our prices reflect it to a certain extent so I am not sure what your problem is with this.
On equities we reflect the real spread in the market plus our spread, we open a minute after the real market opening to avoid the silly prices on the LSE/NYSE/Dax etc opening. As we do operate a stop system on "our quote" it is always wise for a client to have sufficient resource in their accounts to take account of the wider prices that may occur at certain times. But clients should always be aware that LCG has NO CONTROL over market prices ... if a real price event happens then... sorry our quotes reflect it.
Your comment on widened price problems seems not to be a comment as I am not sure what problem we should be fixing.
Simon