first, piercing 1800, neither held it long, though, stocks got an encouraging bit of news by william dudley who says that the banking will strengthen. the jobs pictures will improve and so should consumer spending, but late in the day a wet blanket got tossed, coming by carl icahn. he called some companies' earnings a mirage and says some companies could have a big drop. well, it was not big, but the number did drop after that. the dow surged as much as 67 points higher initially, finallying closing up 13, the nasdaq fell, because of slumping shares of apple. why are some like icahn worried, while others carry on. >> reporter: the first trigger? home sales began around a fresh in this case data around thursday when we get the number, the houses economy will be questioned. also this week, inflation readings, on wednesday it is a consumer price index, and on thursday, producer prices both expected to remain low. if not, and inflation is higher than expected concerns will grow that the fed will be more open to scaling back or tapering its monetary support, another potential catalyst, earnings,