Via Hadeel Al Sayegh and Rachna Uppal in reuters.com: Global financiers are poised to flock to Saudi Arabias annual flagship investment conference next week as a tightening of the kingdoms purse strings and a deepening of regional conflict cloud the outlook. Among those expected to descend on the Future Investment Initiative (FII) in Riyadh are top CEOs, including Goldman Sachs David Solomon, BlackRocks Larry Fink, Citigroups Jane Fraser and the London Stock Exchanges Julia Hoggett.