Example. 100,000 is the bid and someone placed an auto bid of up to 700,000. You go to place an auto bid of 600,000 and the bid automatically comes to 600,000, but it is not you who holds it, but someone who has a higher auto bid. Bids until you bury the auto bid. Or you put an auto bid, for example above, you put 800,000 and if the last auto bid was 700,000, your bid will be one above (706,000) and the auto bid will be at 800,000