By Chris Thomas July 13 (Reuters) - Southeast Asian stock markets rose on Thursday, in line with broader Asia, as investors were relieved that U.S. Federal Reserve Chair Janet Yellen indicated a more gradual tightening of monetary policy. Yellen noted on Wednesday that while the U.S. economy was healthy enough for the Fed to tighten policy, the federal funds rate would not have to rise all that much further to reach a neutral level that neither encourages nor discourages economic activity. "I think most Asian markets reacted positively to Yellen's speech last night," said Victor Felix, an equity analyst with AB Capital Securities. Investors will now have confidence to take on more risks, seeing that the Fed won't be as quick to tighten monetary policy as previously expected, he added. MSCI's broadest index of Asia-Pacific shares outside Japan rose 1.2 percent to its highest since mid-2015. In Southeast Asia, Philippine shares rose as much as 0.7 percent to hit a four-week high, heading for their third consecutive session of gains. Industrials and financials led the gains, with conglomerate LT Group Inc providing the biggest boost to the index, rising as much as 8.6 percent to a nine-week high. Singapore shares also gained as much as 0.7 percent, their biggest in a week, backed by financials and industrials. DBS Group and United Overseas Bank rose 1.4 percent and 1.5 percent, respectively, while Jardine Matheson Holdings climbed 2.3 percent. Thai shares rose as much as 0.6 percent to their highest in two weeks, led by gains in materials and energy stocks. Siam Cement advanced 2 percent, while oil and gas refiner PTT Pcl rose 1.3 percent. Malaysian stocks were marginally higher ahead of Bank Negara Malaysia's policy meeting scheduled later in the day. Malaysia's central bank will likely leave its benchmark rate unchanged, a Reuters poll showed, as inflation has been easing after hitting an eight-year high in March. Indonesia was largely flat, while Vietnam rose marginally. For Asian Companies click; SOUTHEAST ASIAN STOCK MARKETS: Change at 0355 GMT Change on day Market Current Previous Close Pct Move Singapore 3229.52 3208.91 0.64 Bangkok 1581.93 1574.93 0.44 Manila 7954.96 7938.37 0.21 Jakarta 5819.5 5819.132 0.01 Kuala Lumpur 1757.89 1757.24 0.04 Ho Chi Minh 775.59 774.17 0.18 Change on year Market Current End 2016 Pct Move Singapore 3229.52 2880.76 12.11 Bangkok 1581.93 1542.94 2.53 Manila 7954.96 6840.64 16.29 Jakarta 5819.5 5296.711 9.87 Kuala Lumpur 1757.89 1641.73 7.08 Ho Chi Minh 775.59 664.87 16.65 (Reporting by Chris Thomas; Editing by Amrutha Gayathri)