Construcciones y Auxiliar de Ferrocarriles, S.A. (LSE: 0RKF). Last close €78.00 (as of 2026-10-21); 52-week range €50.10 to €82.20. ORTEX data as of 2026-10-19: short interest is 0.02% of free float, 0.7 days to cover and the average cost to borrow is 0.69%.