Believe it. Do you buy and sell a stock at 6 digits out? The price is now 27.858999. This stock, like all stocks are in the hands of computer generated algorythmic trading. Underlying fundamentals mean nothing[ BTW they are not good anyway for UAL]. The HFT traders make the money on small arbitrage between the stock price, ETF's,Options, etc. Historically Airline Companies don't make consistent profits, have made frequent trips to bankruptcy, and have fairly high stock price volatility.