April 17 (Reuters) - Alstom shares are expected to fall between 10% and 15% on Friday, traders said, after the train maker pulled its medium-term forecast and reported preliminary results for the 2025/26 fiscal year the night before.

The French rail manufacturer said it now expects to generate "positive" free cash flow by the end of fiscal 2026/27, withdrawing its previous cumulative FCF target of 1.5 billion euros over a three-year period. It expects a cash outflow of about 1.5 billion euros in the first half of the year that started on April 1.

($1 = 0.8488 euros)

(Reporting by Jakob Van Calster)