** Shares of Australia's Bapcor BAP.AX set for worst week since July 21, down 21.4%

** Stock falls 0.7% to A$1.7675, extending three-session losing run

** On December 9, Australian automotive parts retailer lowered its FY26 statutory NPAT guidance to A$31 million ($20.7 mln)-A$36 mln vs earlier projection of A$40 mln-A$50 mln

** Brokerages downgrade due to underperformance of co's core trade business; Jefferies cuts PT to A$3.4 from A$2.5, Morningstar trims fair value estimate by 6% to A$4.7

** BAP down 62.6% YTD

($1 = A$1.4999)

(Reporting by Shruti Agarwal in Bengaluru)

((Shruti.Agarwal@thomsonreuters.com))