SE Asia Stocks-Down on bleak economic outlook; Philippines plunges 4%

* U.S. March retail sales, factory output sink * Pandemic to bring Asia's 2020 growth to halt-IMF * Oil plunge hits Thai energy sector By Arundhati Dutta April 16 (Reuters) - Southeast Asian stock markets fell on Thursday, with Philippines shares losing as much as 4%, as investor sentiment was hurt by dire economic data from the United States and prospects of extensive damage to Asia as a fallout of the coronavirus outbreak. U.S. retail sales suffered their steepest drop on record last month and output at factories declined by the most since 1946 - reinforcing fears that the economy contracted in the first quarter at its sharpest pace in decades. Moreover, Asia's economic growth this year will grind to a halt for the first time in 60 years, the International Monetary Fund said on Thursday, as exporters are hit by declining demand amid lockdowns throughout the region. Though softer data from the U.S. on the retail sales on the industrial and retail fronts had been expected, the depth of the disappointment shocked markets, according to a note by Jingyi Pan, a market strategist at brokerage IG. Leading the fall, the Philippine index slumped up to 4.3% in early trade. Heavyweight conglomerates Ayala Land and SM Investments shed 6.9% and 3.6%, respectively. The benchmark's steep fall was due to profit-taking and tracking of U.S. markets, according to Ruben Carlo O. Asuncion, chief economist at The Union Bank of the Philippines. Indonesian stocks shed as much as 2%, with financials weighing on the index. PT Bank Central Asia Tbk slipped 2% while PT Bank Mandiri (Persero) Tbk lost 5.7%. An overnight slump in oil prices pushed the energy-heavy Thai index more than 1% lower. PTT Pcl and PTT Exploration and Production Pcl lost around 3%, each. Shares in Vietnam fell as much as 0.8%, with losses led by financials. Joint Stock Commercial Bank for Foreign Trade of Vietnam skid 1.6%. Malaysian equities slipped as much as 0.7%, while Singaporean stocks were slightly lower. For Asian Companies click; SOUTHEAST ASIAN STOCK MARKETS AS AT 0340 GMT STOCK MARKETS Change on the day Market Current Previous Pct Move close Singapore 2602.84 2605.56 -0.10 Bangkok 1224.98 1236.1 -0.90 Manila 5702.49 5946.05 -4.10 Jakarta 4527.977 4625.905 -2.12 Kuala Lumpur 1383.85 1387.79 -0.28 Ho Chi Minh 774.09 777.22 -0.40 Change so far in 2020 Market Current End 2019 Pct Move Singapore 2602.84 3222.83 -19.24 Bangkok 1224.98 1579.84 -22.46 Manila 5702.49 7,815.26 -27.03 Jakarta 4527.977 6,299.54 -28.12 Kuala Lumpur 1383.85 1588.76 -12.90 Ho Chi Minh 774.09 960.99 -19.45 (Reporting by Arundhati Dutta; Editing by Ramakrishnan M.)