Egyptian Exchange indexes gained 13 billion pounds during this month's trading amid buying operations from institutions, Egyptian and foreign investment funds, Al-Bawaba News reported Friday. The market capital reached 429.8 billion pounds in December, after it reached 413 billion pounds in November. EGX 30 index rose 10.22% to record 7006 points, while EGX 70 rose 9.93% to record 379 points and EGX100 rose 7.42% to record 791 points.