Rolls-Royce rises after buyback announcement
** Shares of British engineering company Rolls-Royce RR.L up 2.8% at 1380.4p
** RR announces interim share buyback of £1.5 bln ($1.99 billion)
** Reaffirms full-year guidance
** Says large engine flying hours grew 4% YoY in first 10 months of 2026, reaching 114% of 2019 levels
** As of last close, stock up ~20% YTD
($1 = 0.7543 pounds)