first sign of somethign wrong was the volumes on sgx... it was 1700+ contracts... which was abnormally high and this is not expiry week...! stayed cautious... in the morning...! never liked it when things can change in few seconds...! today was one such day...! On hind sight..it would be awesome short at open... but never trust the charts when there is abnormal rise in buying / selling interest in the market...!