NEW YORK, June 15 (Reuters) - U.S. stock index futures extended losses on Monday as data showing manufacturing in New York state shrank at a more severe rate than expected in June, tempering some recent optimism about an economic recovery.
* The data presented an additional headwind for stock investors as retreating commodities prices weighed and the U.S. dollar strengthened.
S&P 500 futures slipped 10.70 points, and were below 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 shed 103 points, while Nasdaq 100 futures declined 14.50 points.