NTB: 21/02/2012 (next tuesday - http://www.bloomberg.com/quote/NTB:SL)
COMB: 24/02/2012 (http://www.bloomberg.com/quote/COMB:SL)
HNB: 24/02/2012 (http://www.bloomberg.com/quote/HNB:SL)
SAMP: 27/02/2012 (http://www.bloomberg.com/quote/SAMP:SL)
JINS: 29/02/2012 (http://www.bloomberg.com/quote/JINS:SL)
LLUB: 29/02/2012 (http://www.bloomberg.com/quote/LLUB:SL)
Are these dates only estimates? or do they follow some fixed schedule? how can I find this schedule? (except Bloomberg)
Cheers!