Unit of the First Capital Wealth Fund, had a managers buying price of about 1198 rupees this month.
The fund will distribute 100 rupees in dividends this year. The unit was originally sold at 1,000 rupees and had so far paid 212 rupees in dividends, the company said.
It claims the highest return among fixed income unit trusts in the island.
"Our ability to significantly outperform the one year Treasury bill rate is attributable to prudent management, identifying market opportunities and capitalising on interest rate fluctuations," Dilshan Wirasekara, Deputy CEO of First Capital Holdings said in a statement.
"With fixed income unit trusts, it all comes down to skill in managing movements of the yield curve."
Sri Lanka's interest rates plunged over the past year, giving capital gains for investors who had invested in longer term instruments.
The fund invests in Treasuries and corporate debt. The First Capital Wealth Fund, said had 849,223 units.