(Bloomberg) -- Samsung Electronics Co.'s semiconductor arm reported a more than 250-fold jump in profit after AI's reliance on memory delivered hefty margins. The result compares with the average analyst estimate of 79.3 trillion won. Group-wide net income came to 71.3 trillion won, also beating estimates. Global semiconductor shares soared to record levels this year but have hit mounting concerns about heated competition and possible overcapacity. Earlier this week, SK Hynix said its operating profit surged 557% to a record 60.5 trillion won, but the figure still fell short of expectations.