I am guessing that most traders believe that today will be a red day, after BoT decision over Thai banks, and who knows if other sectors will follow because have many been able to make any profits, for interim dividends and buybacks?
In the graph there I don't see anything saying, up or down, but I see that a big move is too come quite soon.
The day is still upwards looking, and in 30 min (shown here) is showing that it has been collected power, for a few days. Not in what direction it will go, though.
If we go in the daily graph, and expects SET to follow the trend. Then go bullish today, as there will probably be good “buy low” setups you can find.
Or if you believe the BoT decision will be what stopped the bullish retraction in the bigger downwards trend. Then look for good selling opportunities.
Whatever you believe, it is often much smarter to wait for the market to decide for itself, so my recommendation would be to wait, at least 30-60 minutes before you make you decision.