By Hanna Paul Oct 18 (Reuters) - Most Southeast Asian stock markets retreated on Wednesday with the Philippines giving up more than 1 percent as investors cashed in on the gains recorded over the past few weeks. Philippine shares fell as much as 1.4 percent, marking their biggest intraday percentage drop in more than three weeks. "Profit-taking is driving the market. The market has been on an uptrend for several weeks in anticipation of the successful operation in the hostility in Marawi," said Manny Cruz, an analyst at Asiasec Equities Inc. President Rodrigo Duterte on Tuesday declared the southern city of Marawi liberated from pro-Islamic State militants, signalling the end of a battle that killed more than 1,000 people. "The early resolution or the successful military operation was used as an excuse by investors to cash in on the recent gains," Cruz said. The government said its proposed domestic bond issue to fund the rebuilding of Marawi was likely to be launched in January. Thai shares also posted their biggest intraday dip in about three weeks. Data showing a 21.9 percent surge in auto sales in Thailand, the regional vehicle production and export base for the world's top car makers, had little impact on traders. Indonesian stocks also fell, with the telecommunication sector leading the losses. Meanwhile, Vietnam shares inched higher to touch a near 10-year peak, with gains in consumer staples and utilities lifting the index. Markets in Singapore and Malaysia were closed for a national holiday. For Asian Companies click; SOUTHEAST ASIAN STOCK MARKETS: CHANGE AS AT 0400 GMT Change on the day Market Current Previous Pct Move close Bangkok 1717.11 1724.47 -0.43 Manila 8379.77 8497.74 -1.39 Jakarta 5923.532 5947.33 -0.40 Ho Chi Minh 830.25 828.29 0.24 Change on year Market Current End 2016 Pct Move Bangkok 1717.11 1542.94 11.29 Manila 8379.77 6840.64 22.5 Jakarta 5923.532 5296.711 11.83 Ho Chi Minh 830.25 664.87 24.9 (Reporting by Hanna Paul; Editing by Amrutha Gayathri)