** Shares of Martin Sorrell's ad group S4 Capital SFOR.L fall as much as 14% to 19.48p, hitting an all-time low
** Company expects annual like-for-like net revenue to decline by mid-single digits, versus prior forecast of low-single-digit fall
** Peel Hunt cuts target price to 25p from 30p, but maintains its "hold" rating
** "We believe top line will need to return to consistent positive trajectory and margins will need to improve further for a re-rating," Peel Hunt says
** Two of seven brokerages rate the stock "buy" or higher, while five rate it "hold" with median PT of 37.96p - data compiled by LSEG
** As of last close, S4 Capital stock down ~31% YTD
(Reporting by Atharva Singh in Bengaluru)
((Atharva.singh@thomsonreuters.com))