hɪz fˌæsᵻnˈeɪʃən wɪððə stˈɑːk mˈɑːɹkɪt bɪɡˈæn æɾ ɐn ˈɜːli ˈeɪdʒ wɛn hiː stˈɑːɹɾᵻd tə mˈænjuːəli tɹˈæk kˌæɹɪktɚɹˈɪstɪks kˈɑːmən tə ðə θˈɜːɾi kˈʌmpəniz ɪnðə dˈaʊ dʒˈoʊnz ɪndˈʌstɹɪəl ˈævɹɪdʒ stˈɑːk ˈɪndɛks.
His fascination with the stock market began at an early age when he started to manually track characteristics common to the 30 companies in the Dow Jones Industrial Average stock index.