The past year's been the exception to the rule. AC could be bought for under $2 a share tat the start of 2014, AA at $20 when it emerged from bankruptcy protection and closed the US dael. AC's now over $12 and AA's over $40...UA and DL have both done similarly well of late. But it may be time to get out if you bought at the bottom of the market, or at least cash in a good chunk of your chips though not too many attractive alternatives at the moment.