WALL Street navigated some potent obstacles last week – Greece’s elections and the Federal Reserve’s slashing its US economic growth forecasts – but the drama is not over.

Investors say big gains will be hard to come by amid signs of slowing growth .

The S&P 500 posted its second-biggest daily decline of the year last week. Trading is likely to be volatile in the final week of the quarter as headlines from Europe drive sentiment.

The market also is awaiting a US Supreme Court ruling on the Obama administration’s healthcare overhaul, and that decision will mean winners and losers in the healthcare sector.