SPX's (S & P 500) volume spiked dramatically today to 4.505 billion shares

SPX's (S & P 500, http://bit.ly/i0nsT) volume spiked dramatically today 3-9-10 to 4.505 billion shares, from only 3.220/3.453/3.352/3.365 billion shares the prior 4 days, which points to important peaking action.