JKH, a conglomerate with business interest in transport, property development, food processing, retail and financial services sectors closed at 185.50 rupees, up 1.50.
At the end of trade Thursday, JKH had reached a market cap of 114.
9 billion rupees, brokers said.
Dealers said on Tuesday the dollar, rupee was trading at113.
85/90.
Colombo's All Share Price Index closed at 3,746.
50, up 21.91 points, while the Milanka index of more liquid shares gained 1.36 percent (57.97 points) to close at 4,328.70.
Turnover was 566 million rupees, according to stock exchange provisional figures.
Commercial Bank of Ceylon, an index heavy stock closed at 214.00 rupees, up 13.00 after announcing a one for two share split, brokers said.
Hatton National Bank closed at 188.00 rupees, down 25 cents, Sampath Bank 222.
50 rupees, up 50 cents and Seylan Bank closed flat at 47.00 rupees.
National Development Bank closed at 208.
00 rupees, down 2.00, and DFCC Bank closed at 182.540 rupees, up 2.00.
Environmental Resources Investments ordinary voting shares closed at 115.25 rupees, up 12.75. Its 0000 warrants closed at 84.25 rupees, up 14.50, and 0001 warrants closed at 79.
00 rupees, up 16.00.