(Reuters) - ** Sri Lankan stocks rose for the fifth straight session on Thursday to hit their near four-week high led by beverage shares, but foreign investors exited from the risky assets with the start of presidential poll campaigning. The rupee currency ended steady.

** Local investors picked up select shares, with one of the two presidential frontrunners, former wartime defence chief Gotabaya Rajapaksa, possibly getting the broader support of other smaller parties after President Maithripala Sirisena’s center-left Sri Lanka Freedom Party (SLFP) pledged its backing for his candidature in the election scheduled for Nov. 16.

** Rajapaksa started his campaign on Wednesday, while the other strong candidate Sajith Premadasa, the housing minister who has the backing of most of the rural poor, kicked off his campaign on Thursday.

** The benchmark stock index ended 0.08% firmer at 5,814.44, rising for the fifth straight session to its highest close since Sept. 19. The bourse fell 1.42% last week. So far this year, the index has dropped 3.9%. ** Equity market turnover was 1.12 billion rupees ($6.20 million), nearly double of this year’s daily average of about 657 million rupees. Last year’s daily average was 834.0 million rupees. ** Foreign investors were net sellers for the seventh straight session. They sold a net 276.8 million rupees worth of shares, extending the year-to-date net foreign outflow to 3.7 billion rupees of equities, according to index data.

** Meanwhile, the rupee ended steady at 180.50/65 per dollar compared with Wednesday’s close of 180.50/60. The currency is up 1.2% so far this year.

** Foreign investors bought government securities on a net basis for the first time in seven weeks, buying 522 million rupees worth of government securities in the week ended Oct. 2. ** The foreign outflows, which are one of the major reasons behind the rupee’s recent weakness, may not abate until after a parliamentary election in 2020, some analysts said. ** The central bank does not release foreign trade numbers on a daily basis, but weekly data in the past five weeks through Sept. 25 has shown a steady outflow. ** Sri Lanka has seen a net foreign outflow of 54.8 billion rupees through Oct. 2, according to central bank data.