NEW YORK, May 9 (Reuters) - U.S. stock index futures rose on Monday as commodities and the euro bounced back from last week's hefty losses.
* Among companies reporting earnings were Walt Disney Co, Sempra Energy, SYSCO Corp and Tyson Foods. About 70 percent of S&P 500 companies that have reported results have beaten expectations.
* Brent and U.S. crude futures rose more than 3 percent with NYMEX crude above $100 a barrel, helped by bargain hunting from traders and investors after last week's sharp drop.
* "Today's market bounce is due mostly to a rebound in commodities," said Peter Cardillo, chief market economist at Avalon Partners in New York. "We have a weaker dollar and that is attracting some risk to the market."
* S&P 500 futures rose 5.6 points and were above fair value, a formula that evaluates pricing by taking into account interest rates, dividends and time to expiration of the contract. Dow Jones industrial average futures gained 50 points and Nasdaq 100 futures added 14.75 points.
* Relatively low volume so far this year could see a further decline as Citigroup Inc's 1-for-10 reverse stock split comes into effect Monday. Citi shares have recently accounted for about 6 percent of composite volume.
* European stocks were down in morning trade as the return of fears over the region's debt crisis sparked a sell-off in the euro zone peripheral stock markets such as Madrid's IBEX, down 1.8 percent.
* Investors were rattled by rumors that debt-stricken Greece could leave the euro zone, but Greek Prime Minister George Papandreou denied the rumors on Saturday.
* The euro bounced back against the dollar as some sovereign investors viewed its selloff late last week on concerns about Greek debt as overdone, given still favorable interest rate differentials. Technical indicators suggest gains could be temporary.
* "The biggest threat (to the U.S. equities market) going forward would be if the euro were to come under severe pressure," said Avalon Partners' Cardillo.
* Last week, the Dow Jones industrial average lost 1.3 percent, the Standard & Poor's 500 fell 1.7 percent and the Nasdaq Composite dropped 1.6 percent. (Reporting by Rodrigo Campos; Editing by Kenneth Barry)