MANILA, Philippines — The local stock market sustained its upward trajectory, marking a successful return to the 6,200 level on hopes of inflation slowing further in June. The benchmark Philippine Stock Exchange index (PSEi) advanced for a fourth straight session yesterday, adding 0.58 percent or 35.96 points to close at 6,223.99. The broader All Shares index also gained 0.53 percent or 18.03 points to settle at 3,388.97.