** U.S.-listed shares of air-taxi maker Vertical Aerospace M000.F down 3.86% at $4.23 premarket
** Raymond James downgrades rating on stock to "underperform" from "market perform"
** "We are concerned about Vertical's ability to raise capital at this critical juncture," says brokerage
** Vertical only has enough cash to last until mid‑June 2026, assuming normal flight testing spend - Raymond James
** "Given enough time and money, we believe Vertical would be successful, but the market has soured on higher risk ventures lately" - brokerage
** Seven of nine analysts rate stock "strong buy" or "buy", one "hold" and one "sell"; median PT is $11 - data compiled by LSEG
** As of last close, shares down 17.4% YTD
(Reporting by Pragyan Kalita in Bengaluru)
((Pragyan.Kalita@thomsonreuters.com;))