In this Wednesday, Oct. 9, 2013 photo, specialists Peter Giacchi, left, and Patrick King confer at a trading post on the floor of the New York Stock Exchange. (AP Photo/Richard Drew)
Stock futures are fluctuating after another record week for U.S. markets.
Dow Jones industrial futures are down 6 points to 15,491. S&P futures have lost a point to 1,752.90. Nasdaq futures are up less than a point to 3,374.25.
A strong quarterly earnings performance from U.S. corporations pushed the S&P to record highs and the Nasdaq to 13 year highs last week.
Futures had been heading solidly higher Monday, but began to waver after the drugmaker Merck said its profit had plunged 35 percent because of generic competition.
And many industry watchers expect Apple to report once again that its earnings are sliding when it posts quarterly results after the closing bell. That would mean the third consecutive quarter of falling profit for Apple.