Has anyone else seen phantom quotes on ARCA? Are they legal? Late yesterday afterhours, I saw a bid with a size of 1. Right after I entered the order to sell, the bid is gone. I looked at time & sales and there was no sale. The stock was trading very slowly at the time. This actually happened several times. This morning, I saw another bid I like with a bid size of 1. I hit the bid with 200 shares, all sold. Again, 800 shares, all sold. The bid still showed a bid size of 1. Somehow this guy is able to hide the true size of his bid. Weird or what? The quotes were displayed in IB and ARCA Java web book.