US mkts end off day's high; manufacturing expands in Sep

After rising more than 1 percent by midday, the major US stock indexes came off their highs, with the Nasdaq the hardest-hit. Market participants said Wall Street has shown signs of fatigue as stocks closed a strong third quarter on Friday.

"We are at a level where the market is due for a correction. Also, as we head for a new earnings season here, we should expect more volatility ahead," said Tim Ghriskey, chief investment officer of Solaris Asset management in Bedford Hills, New York.

Among stocks weighing on the Nasdaq, Apple