Chairman Jim Simons acknowledges issues over former co-chief’s political views

Two Sigma, Citadel and DE Shaw also deliver stronger returns along lines of Bridgewater

Long-term donors step up amount they give while Republican supporters hold back

Top 25 performers rake in $15.4bn, led by Renaissance Technologies’ James Simons

Media investment in rightwing media and campaign contributions give the heiress clout with the president

His backing of Trump and Breitbart had caused controversy inside the hedge fund

Major hedge funds start to experiment with quantum computing as quant investing evolves

Fund now on par with Renaissance with assets under management reaching more than $50bn

Lawsuit claims Renaissance boss clashed with underling over politics and race

Nearly 10 years after its nadir, quantitative investing is again the hot trend in finance

Quants fail to displace all stockpickers as Citadel’s Ken Griffin bags joint top spot

Co-founder of Renaissance Tech invests in hedge fund where scientists compete to develop models

BlackRock has completed its acquisition of an infrastructure investment firm in Mexico

Vehicle’s demise follows weak performance and failure to attract outside investors

Industry suffers from mediocre investment performance and growing criticism

Mediocre results have raised questions about the very basis of the hedge fund industry

Traders leaving banks fuel increase