Last week, I noted that JetBlue (JBLU) was trading at a rising support. With a prevailing uptrend still intact, I suggested looking for support around 21-21.25. The market however had a different idea and sold JBLU sharply, piercing this support area with no problem, closing the week just above 20.00.JetBlue (JBLU) Weekly Chart(click to enlarge)Breakout:- As we can see on the weekly chart, JBLU was bullish since mid-2016. - It looks like that uptrend is being threatened. - Price has broken a rising trendline.Next Support:- We can see a key support/resistance pivot in the 18.40-19.00 area. - Let's limit the bearish outlook for the current dip to 19.00 for the moment. The existing uptrend since 2016 still could prevail against this month's decline especially price holds above 19.00.- In fact, if price does hold above 18.40-19, the upside towards the 2015 high at 26.83 would becomes more probable.