A representational image of investors looking at the digital stock board. — Reuters/FileKARACHI: The Pakistan Stock Exchange welcomed budget proposals on Wednesday, which maintained the capital gains tax unchanged. The benchmark KSE-100 index surged by 2,328 points to an all-time high amid investor optimism.The KSE-100 surged by 2,328.24 points, or 1.91 per cent, to 124,352.68 points, up from 122,024.44 points recorded in the last session. The highest index of the day remained at 124,588.17...