Sri Lankan stocks fell on Tuesday, reversing early gains because of a 36 percent slide in plantations management firm Carson Cumberbatch and Co Ltd.
The key Colombo all-share index ended down 0.93 percent, or 11.31 points, at 1,204.89.
Carson fell 36.37 percent, or 4,000.25 rupees, to 7,000 rupees.
The infrequently traded stock, which is involved in managing palm oil plantations and real estate, shot up 250 percent last week on speculation of a bonus issue after several of its subsidiaries gave bonuses.
Foreign activity - mostly focused on Keells - accounted for about 71 million rupees of a total market turnover of 111.2 million rupees.
Commercial Bank of Ceylon Ltd gained 0.50 percent, or 0.75 rupees, to 151 rupees, while Sri Lanka Telecom Ltd rose 1.43 percent, or 0.25 rupees, to 17.75 rupees.