the miss in subsequent stock price declins revertrength in kostka of shares, up about 20% over the last year. costco had been beating expectations onomparable sales reporting, nearly 9% in november, far better thanre st. but the company has been struggling with international pansion and lower margins on gasoline. for "nightlbusiness report," leslie picker. >> delta revenue may lose altitude. that's where we begin the market focus. investors are growing concern the slowing global economies will limit the airline but the ceo says he expects the current strong demand to continue into 2019. >> this will be the fourth year in a row this year we make $5 billionit of pr returning 14% return on capital back to the investors. and it's going to stand the tt of time. who can do that through the cycle? delta ha a great lead. >> apparently the comments were not enough for investors sending 53.55.ck lower by 5% to >>> sienna reported the strongest earning in sales growth in years. he networking systems company expects 20% profit growth next year. the board alsod authori a new buyback program of up $5

this is day one for kostka oh o. >> it's interesting costco was down 8, 9% but up double digit% per year in prior leadership it feels like the year can't get done fast enough we meg cap techs apple, alphabet still have amazon and microsoft up a lot it seems like at as long as 2018 is openfare business it could keep going. >> the thing they lost is margins. the revenue and the eps missed when we think about one of the things propoling the bull market great margins, they have been maintained or even widened as revenues increased if that's a trend we see margin compression that really is real trouble. >> also there was consistently -- costco had trouble with the amazon scare. thats always can return too. this is not the perfect thing it has been heretofore something changed. >> up next, the tweets and the final call i don't know what's going on. i've done all sorts of research, read earnings reports, looked at chart patterns. i've even built my own historic trading model. and you're still not sure if you want to make the trade? exactly. sounds like a case of analysis paralysis. is there a c

big brands like jcpenney kohl's macy down 3% kostka of down after hours tailor brands owning men's warehouseales appear lowered full-ier guidance down 30% at one point. children place best buy, tiffany, jewelers, auto sellers like auto nation, penscy automotive. group one automotive near 52-weeklies preponderate retail, the xrt, a basket of retail stocks in the s&p 500 also at 52-week low. that's also among the most shorted etfs on the street what's the problem well amazon is an issue. but retailers rose in the summer on signs that the retailers were getting better at playing the online game. online sales are indeed growing faster for all the companies and the companies though need to invest in both stores and in online that's a problem it's expensive and increasingly hurting margins. that's probably the biggest issue. then the macroissues, the concern is that this may be as good as it gets with comp store sales which improved this year and even broader concerns we could be in the later stages of the upswing in consumer spending you add in high labor costs we are seeing additional transporta