''A warning from Ryanair that it could miss its full-year profit forecast hit shares both in the Dublin-based budget airline and its FTSE 100 competitor Easyjet,'' noted Spreadex trader Max Cohen.Ryanair added that it would reduce its winter season capacity, and lower its full-year traffic target to just under 81 million passengers. That compared with the previous target of 81.5 million. The Dublin-based airline added that it would roll out lower fares and seat sales mainly in Britain, Scandinavia, Spain and Ireland. In July, Ryanair revealed that net profits, or earnings after tax, sank 21 per cent to 78.1 million euros in the group's first quarter, or three months to the end of June. It blamed the impact of higher fuel and operating costs, as well as the timing of Easter and French air traffic control strikes.