In Lee's absence, Samsung Electronics reported record quarterly earnings in late July.
Samsung Electronics investors have said their chief interest in the trial has been how long Lee will stay in detention, sidelined from fully participating in large-scale decision-making.
"It (Samsung Electronics) is doing well now, but will his absence show up in its performance two, three, five years from now? That's the question," said Park Jung-hoon, fund manager at HDC Asset Management.
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