Market analysts said that Pakistan's stocks hit the 21,800 mark mainly because of gains in large cap stocks such as Pakistan State Oil Co Ltd and Muslim Commercial Bank.
"This increased the index mark and allowed the Karachi Stock Exchange to close at a record high," Intikhab at Capital investments said.
He said that Bank of Punjab was one of top gainers, closing up 7.25 per cent at 14.80 rupees.
The KSE benchmark 100-share index closed 1.08 per cent, or 232.39 points, higher at 21,823.05. The rupee also ended steady at 98.46/98.51 against the dollar.