CAIRO, May 13, 2018 - The Egyptian Exchange trimmed gains after strong start on Sunday on positive investor sentiment prompted by the country's credit rating promotion by Standard & Poor's. Ratings agency Standard & Poor's upgraded on Friday Egypt's debt rating from B- to B, citing stronger economic growth. The stocks' main index EGX30 increased by 0.17 per cent to close at 17,184.02 points. Meanwhile, the small and medium-cap index EGX70 rose by 0.24 per cent to close at 855.54 points. The broader index EGX100 went up 0.16 per cent to close at 2,199.28 points. The Egyptian Exchange (EGX) announced that the new trading hours during the Holy Month of Ramadan will start at 10:00am Cairo local time and end at 1:30pm.