Price Regulations

The SET has set a floor limit of minus 30% of the previous day's closing price on the main board while the ceiling limit is plus 30% of the previous day's closing price on the main board. However, for securities whose prices are less than one baht, stock prices can fluctuate freely. Ceiling and floor limits are applied to each trading board except for the foreign board.

Price Spreads
The Stock Exchange of Thailand (SET)'s official spread range is shown in the table below;

Bid / Offer Range	Spread Price
Less than 2 Baht	0.01 Baht
More than 2 Baht to 5 Baht	0.02 Baht
More than 5 Baht to 10 Baht	0.05 Baht
More than 10 Baht to 25 Baht	0.10 Baht
More than 25 Baht to 50 Baht	0.25 Baht
More than 50 Baht to 100 Baht	0.50 Baht
More than 100 Baht to 200 Baht	1.00 Baht
More than 200 Baht to 400 Baht	2.00 Baht
More than 400 Baht to 800 Baht	4.00 Baht
More than 800 Baht	6.00 Baht