BUZZ-TSB: best ever 1-day move on offer from Spain's Sabadell

** TSB, which was carved out of Lloyds, enjoys biggest one-day pct move since listing following preliminary offer from Spain's Banco Sabadell

** Stock jumps almost 27 pct, adding some $534 mln to TSB's market value; trades around 28 pct above 260p IPO price

** Heavy activity in the stock with about $30 mln traded accounting for more than 12 pct of the total turnover across the FTSE 250 index of UK midcaps

** Lloyds still owns a 50 pct stake in TSB, Britain's seventh-biggest bank. Lloyds shares up 1.9 pct

** If the Spanish bank were to purchase a stake of over 29.9 pct it would have to make a formal bid for the entire business under London Stock Exchange (Other OTC: LDNXF - news) rules

** Shares (Berlin: DI6.BE - news) in Spain's Sabadell down 7.5% before being suspended

** Spanish bank to fund entire takeover with share issue and excess capital, source tells Reuters (RM (LSE: RM.L - news) : tricia.wright1.thomsonreuters.com@reuters.net)