Sri Lanka, April 8 -- The Colombo Stock Exchange closed in red territory today, weighed down by price losses in major banking counters such as Commercial Bank, Hatton National Bank, and Sampath Bank. Market turnover surpassed Rs. 6.5 billion, driven by high net worth and institutional investor activity in Diesel & Motor Engineering, John Keells Holdings, and Teejay Lanka.Mixed interest was observed in Sampath Bank, Hatton National Bank, and Commercial Bank, while retail investors showed preference for RIL Property, LOLC Finance, and Raigam Wayamba Salterns. Foreign investor participation remained subdued, although foreigners ended as net buyers.Global equity markets, especially in Asia, witnessed a steep sell-off today following the annou...