The airline sector is experiencing a downturn, with the JETS ETF falling over 2%, largely influenced by United Airlines' (UAL) latest earnings report. While United beat second-quarter earnings expectations, its third-quarter guidance of $2.50 to $3.50 per share was significantly below the analyst consensus of $3.60. This, coupled with concerns over a substantial increase in projected fuel costs for 2026, has created a negative sentiment around the stock and the broader airline industry. The market reaction appears to be a classic 'sell-the-news' event, where a strong earnings beat was insufficient to meet investor expectations that had driven the stock up ahead of the report.