reality check.........add your thoughts, page-11

I'm in London, just been passed this one, Not sure if you guys know it... There's a SPX circuit breaker at 1255.30 (-5% from Friday close) As we understand it s&p futures can't trade lower than that until the new floor session opens tomorrow at 14.30 GMT (09.30 EST) so its effectively floored at that level...all selling below that level would have to be in other indices

Beware if you're thinking it holds at that level for any other reason. Tuesday should be interesting.