Core Viewpoint - Delta Air Lines Inc and United Airlines Holdings Inc are experiencing stock declines due to Winter Storm Hernando impacting the East Coast, resulting in significant flight cancellations and delays, alongside rising oil prices and a Supreme Court tariff ruling [1] Group 1: Stock Performance - Delta Air Lines shares are down 4% to $66.63, marking its worst single-day percentage loss since April, with a support level at $65 [2] - United Airlines shares are down 4.9% to $107.54, testing support at its 80-day moving average, and has not yet surpassed its all-time peak of $119.21 [3] Group 2: Historical Performance - Delta Air Lines has seen a 39.4% increase over the last nine months, despite a 3.7% deficit for 2025 [2] - United Airlines has a 44.3% gain over the same nine-month period [3] Group 3: Options Market - Options for both Delta Air Lines and United Airlines are currently affordably priced, with Delta's Schaeffer's Volatility Index (SVI) in the 15th percentile and United's SVI in the 13th percentile [4]