James Simons, mathematician turned billionaire hedge fund founder and philanthropist, dies at 86 NewsdayJim Simons, Math Genius Who Conquered Wall Street, Dies at 86 The New York TimesBillionaire quant investing pioneer and philanthropist James Simons dies at 86 ReutersJim Simons, billionaire hedge fund founder, dies at 86 CNNJim Simons, billionaire quantitative investing pioneer who generated eye-popping returns, dies at 86 CNBC