Stock markets may be closed in the US and UK this Monday but Serge Berner from The Steady Trader already knows what will grab his attention this week.

He is planning to"lean" against the S&P 500; he still thinks there's value to be had there.

Key events over the past few days, such as Ben Bernanke’s speech, have triggered Serge’s decision, and here he shares the key levels he's looking out for.