https://www.reuters.com/article/us-bumble-ipo/blackstone-backed-dating-app-operator-bumbles-shares-set-to-jump-in-debut-idUSKBN2AB1Y6 >Shares of Bumble Inc, backed by Blackstone Group Inc, were set for a near 47% jump in their market debut on Thursday, indicating a flying start for the operator of the dating app where women make the first move.