By Angela Moon
NEW YORK (Reuters) - S&P and Dow index futures rose on Tuesday as investors were upbeat about corporate earnings, but Apple weighed on Nasdaq futures after its chief executive took another medical leave.
Apple Inc
Citigroup Inc
The stock was up 1.1 percent at $5.18 in premarket trade.
Investors also braced for results from International Business Machines Corp
"Apple is weighing on the technology sector but it's all about earnings today, and investors are hopeful after what we've gotten so far in this earnings season. The quality of earnings that are coming in has improved a lot," said Peter Cardillo, chief market economist at Avalon Partners in New York.
S&P 500 futures rose 0.8 point and were slightly above fair value, a formula that evaluates pricing by taking into account interest rates, dividends and time to expiration on the contract. Dow Jones industrial average futures gained 25 points, while Nasdaq 100 futures lost 14.5 points.
In corporate news, Goldman Sachs Group Inc
South African retailer Massmart's
European stocks hit a 28-month high Tuesday, led by mining shares after Rio Tinto Plc's
The S&P 500 ended a seventh straight week of gains with a banks-led rally amid healthy volume after encouraging financial results from JPMorgan.
(Reporting by Angela Moon; editing by Jeffrey Benkoe)