FX:SPX500 S&P 500 index of US listed shares
Looking at Weekly chart of S&P500 chart it seems that Fib Expansion formed from Mar'09 low @ 680 to May'11 high @ 1372 to Oct'11 low @ 1075 is targeting 1.618 Fib Expansion @ 2080. As this is all time high and unchartered territory we might very easily see it roll over from here or even slightly higher around 2100 (nice round number). These are approximate levels and the current run is way overextended. I'm more of a at the current levels and a future retracement is eminent.