The FTSE 100 is called to open 41 points lower at 7315. Major U.S. stock indexes ended mixed Thursday after an early rally lost its strength toward the end of the day. The S&P 500 managed to hold on to a tiny gain that extended its winning streak to a third day. The benchmark index, which is within 0.7% of its all-time high set July 26, ended the day slightly down for the week. Gains in health care, technology, utilities and othersectors outweighed losses elsewhere in the market Thursday. Advancers outnumbered decliners on the New York Stock Exchange. Bond yields were little changed. In Asia, stocks edged up on Friday in morning trade as a series of developments overnight on the US-China trade front dampened hopes.