london spanish stock set big day gain five months thursday nerve imminent declaration catalan independence ease spain constitutional court suspend session catalan parliament schedule monday local leaders expect declare secession traders also cite bloomberg report rift pro-independence leaders spain 10-year bond yield fell low 1.68 percent 1540 gmt basis point set big daily fall since april sentiment catalan separatists maybe bite less die-hard previously say jerome legras head research axiom alternative investments spanish market already recover early day traders say main share index bank stock jump bloomberg report cite source say moderate separatists push negotiations central government decision suspend monday parliamentary session court say agree consider legal challenge file anti-secessionist catalan socialist party already throw independence bid doubt spain main share index jump much 2.7 percent boost financial stock together add 120 point index santander big contributor catalonia-headquartered banco sabadell caixabank jump high last 6.2 percent 4.9 percent respectively caixabank join sabadell say consider move base outside catalonia result crisis trade activity spanish government debt rocket week crisis deepen around 7.8 billion euros spanish government debt change hand wednesday 75 percent high daily trade average since january 2016 accord trax subsidiary trade platform marketaxess thursday spain 10-year government bond trade euro government security data firm say spanish market gain investor nerve ease catalonia