Topline Shares of Spirit Airlines fell by over 30% on Friday, pacing the company's worst loss since a merger with JetBlue Airways was blocked earlier this year, after reports indicated the low-cost airline was exploring bankruptcy. The low-cost airline's stock has dropped since a merger with JetBlue Airways was blocked earlier ... [+] this year. GC Images Key Facts Spirit's shares dropped to just over $1.50 as of around 9:50 a.m. Friday, following an earlier plunge in premarket trading. The stock's furthest ...