Bulls dominated the trading floor of the Pakistan Stock Exchange (PSX) on Tuesday as shares gained nearly 800 points due to activity reported in the energy sector. According to the PSX website, the KSE-100 index gained 659.15 points to stand at 63,662.06 at 1:42pm, up 1.05 per cent from the previous close of 63,002.91. Continuing the upward momentum, the index eventually closed at 63,799.01,