TheStreet - Cybersecurity master FireEye (FEYE) is a steadily rising momentum stockin a turbulent, uncertain market. Yes, this year has been unkind to shareholders, with the stock losingone-fourth of its value after FireEye reported first-quarter earnings. That said, the company's revenue is expected to increase at about 25% for each of the next two years. Investors should jump aboard this growth stock winner now. The prevailing environment is also largely favorable for FireEye to keep pushing the numbers higher. With cybersecurity, the Internet of Things and cybercrime in focus, this stock has considerable upside potential. Analysts expect the stock to surge to about $21 a share in a year. FireEye has always been under the shadow of a rumored imminent takeover. Last year, Cisco was supposed to be the buyer, and this time it is IBM, a Warren E. Buffett holding. (full article on TheStreet.com) FEYE 4H Chart 5/26 (click to enlarge)When we look at the 4H chart of this cybersecurity company, we can see that it has been bearish until it found support right under 12.00 in February.Then, after pushing to 19.50, it remained bearish. The thing is, it recently came back down to test the previous low, but was unable to reach 12.00 before another round of buying pushed it above 15.00. What I can say is that there is a bit of consolidation in the form of a congestion (triangle), which simply reflects lower high and higher lows. I do believe in the potential of this stock in making a bullish reversal, so I think it is a good buy now if it retreats to 14.00. This is a volatile stock and going back to 14.00 is quite possible even if FEYE eventually becomes bullish in the medium-term. The call for a target of 21.00 is reasonable, but there is likely going to be selling around the previous high in the 19.50-20.00 area, so 20 could be a slightly conservative target. If price is able to break 20 and the 21 targets, I think momentum can carry it towards another key pivot area around 24-25. FEYE Weekly Chart 5/26(click to enlarge)When we look at the weekly chart of this young company, we can see that there is a falling trendline and a previous support pivot around 24.65.Therefore, while 20 and 21 are viable targets, the aggressive target should probably be limited to 24.50.