Discounting the increasing geopolitical concerns and uncertainties around Washington's tariff policies, the Qatar Stock Exchange (QSE) Monday saw its key index surge more than 135 points and capitalisation add about QR7bn.An across the board buying lifted the 20-stock Qatar Index 1.21% to 11,322.05 points, recovering from an intraday low of 11,203 points.The telecom, banking and insurance counters witnessed higher than average demand in the main market, whose year-to-date gains improved to 5.2%.As much as 63% of the traded constituents extended gains to investors in the main bourse, whose capitalisation added QR6.92bn or 1.03% to QR677.93bn mainly on mid and small cap segments.The foreign institutions were net buyers in the main market, whose trade turnover and volumes were on the increase.The Gulf funds were seen increasingly bullish in the main market, which saw as many as 103 exchange traded funds (sponsored by AlRayan Bank and Doha Bank) valued at QR767 trade across three deals.The Arab individuals’ weakened net selling had its influence on the main bourse, which saw no trading of sovereign bonds.The foreign retail investors’ lower net profit booking had its effect on the main market, which saw no trading of treasury bills.The Total Return Index gained 1.21%, the All Share Index by 1.15% and the All Islamic Index by 1.21% in the main bourse.The telecom sector index shot up 2.15%, banks and financial services (1.41%), insurance (1.3%), transport (0.84%), real estate (0.51%), consumer goods and services (0.43%) and industrials (0.41%).As many as 34 gained, while 14 declined and six were unchanged.Major movers in the main market include Gulf Warehousing, Mekdam Holding, Qamco, Qatar Islamic Bank, Qatar Insurance, QNB, Commercial Bank, QIIB, Dukhan Bank, Industries Qatar, Ooredoo, Vodafone Qatar and Nakilat. In the junior bourse, Techno Q saw its shares appreciate in value.Nevertheless, Qatar General Insurance and Reinsurance, Doha Bank, Qatari Investors Group, Inma Holding and Qatar Electricity and Water were among the shakers in the main market.The foreign institutions turned net buyers to the tune of QR90.63mn compared with net sellers of QR13.44mn the previous day.The Gulf institutions’ net buying strengthened considerably to QR38.05mn against QR10.16mn on January 25.The Arab retail investors’ net selling decreased substantially to QR4.59mn compared to QR18.55mn on Sunday.The foreign individual investors’ net selling eased marginally to QR3.45mn against QR4.53mn the previous day.However, the Qatari individuals were net sellers to the extent of QR66.25mn compared with net buyers of QR7.13mn on January 25.The domestic funds turned net sellers to the tune of QR52.76mn against net buyers of QR19.24mn on Sunday.The Gulf retail investors’ net profit booking grew perceptibly to QR1.63mn compared to QR0.02mn the previous day.The Arab funds had no major net exposure for the third straight session.The main market saw 22% jump in trade volumes to 142.95mn shares, 72% in value to QR516.75mn and 63% in deals to 30,660.In the venture market, a total of 0.04mn equities valued at QR0.07mn changed hands across 10 transactions.