Your own link says: The Department is not aware, however, of any court that has found that a defendant possessed monopoly power when its market share was less

Your own link says: The Department is not aware, however, of any court that has found that a defendant possessed monopoly power when its market share was less than fifty percent.(30) Thus, as a practical matter, a market share of greater than fifty percent has been necessary for courts to find the existence of monopoly power.(31) Apple currently has 46% market share in the smartphone market (https://www.counterpointresearch.com/us-market-smartphone-share/ https://www.counterpointresearch.com/us-market-smartphone-sh...) and is below this threshold.