UK's BRCK Group slides after Atlas Holdings drops bid plan
** Shares of BRCK Group BRCK.L fall 13.6% to 45.45p ** Private equity firm Atlas Holdings says it has no intention to bid for the British construction materials distributor ** BRCK had previously rejected a 65p-per-share indicative cash offer from Atlas Holdings, saying it "fundamentally undervalued" group ** YTD, stock has fallen ~13% (Reporting by Tuhina in Bengaluru) ((tuhina@thomsonreuters.com ;))