Brandon Haley’s hedge fund has tripled assets to $5.3 billion in 2 1/2 years -- with more money at the ready. Holocene Advisors has a wait-list of eager investors but to keep growth manageable it’s only periodically taking in limited amounts of money from certain clients and turning others away, according to people with knowledge of the matter. The firm, started in April 2017 by Citadel’s former equity chief with $1.5 billion in commitments, is bucking an industry trend, gathering assets even as hedge funds broadly are being plagued by redemptions.