PHILIPPINE STOCKS may remain under pressure this week as investors await developments in talks between the United States and Iran and weigh growing inflation concerns. On Friday, the Philippine Stock Exchange index (PSEi) plunged by 1.55% or 91.18 points to close at 5,768.76, while the broader all shares index went down by 0.81% or 26.98 points to 3,280.97. This was the PSEi’s worst finish in over six months or since it closed at 5,756.66 on Nov…