The Pakistan Stock Exchange (PSX) rose by 1,700 points on Thursday to settle near the all-time high of 158,000 on the back of increased investor confidence after the signing of a mutual defence pact with Saudi Arabia. The benchmark KSE-100 index surged by 1,775.65 points, or 1.14 per cent, to close at 157,953.46 — its highest level in history. Pakistan and Saudi Arabia entered into a landma