In the latest trading session, Delta Air Lines (DAL) closed at $40.15, marking a -0.07% move from the previous day. The stock trailed the S&P 500, which registered a daily gain of 0.2%. Elsewhere, the Dow gained 0.24%, while the tech-heavy Nasdaq added 0.21%.Shares of the airline witnessed a loss of 10.55% over the previous month, beating the performance of the Transportation sector with its loss of 19.48% and underperforming the S&P 500's loss of 1.49%.The upcoming earnings release of Delta Air Lines will ...