Sri Lanka, July 7 -- The secondary market yesterday witnessed an overall easing in activity levels as it opened this week on a dull tone, with thin volumes being traded, leaving the overall yield curve unchanged. The trades that occurred yesterday were confined to a few maturities located at the mid end of the curve, starting off with the 01.08.2030 maturity which traded at 11.25%. Moving on to the 2033 segment, the 15.01.2033 bond traded at 11.60%, whilst the 01.11.2033 bond changed hands at 11.66%. Furthermore, the 2035 segment witnessed some activity, with the 15.03.2035 bond trading at 11.70%, and the 15.06.2035 bond trading at 11.75%. On the external front, the LKR appreciated against the USD, standing at Rs. 335.26/USD, compared...