The iPhone maker's market capitalisation reached the one trillion figure during afternoon trading in New York as its shares rose above $207. The stock has risen about 9% since Tuesday when it reported better than expected results for the three months to June. Apple's stock has risen more than 50,000% since it first listed in 1980. Apple began in the garage of co-founder Steve Jobs in 1976 and was initially best known for its Mac personal computers before its smartphone paved the way for the app economy. Mr Jobs died in 2011 and was succeeded as chief executive by Tim Cook.