Just researched the trading fees for stocks across different brokers because, in reality, commissions greatly impact profits. Choosing the wrong broker can feel like throwing money away.

From what I've studied, stock trading fees in 2026 vary quite a bit. Some charge 0.15% for Cash Balance accounts and 0.20% for Cash Accounts. Interestingly, some brokers waive minimum fees, meaning you pay only for what you trade, unlike others that have a minimum fee of 50 baht.

SBI Thai Online (SBITO) seems to be the most cost-effective option. The trading fee for stocks at a loss is only 0.075% for Cash Balance accounts with no minimum fee. For Cash Accounts, it's just 0.10% with a minimum of 50 baht. Compared to the market average, this is quite cheaper.

For those with smaller capital who want to start trading, Bualuang, Krungthai XSpring, and Innovest X are also good options because they have no minimum fee or easy conditions to waive fees. For those trading in larger volumes, stock trading spreads might not matter as much, but it's still important to choose brokers with good service and analytical tools.

The source of these fees is that brokers act as intermediaries between investors and the stock exchange. They need to generate income, so stock trading fees are their main revenue. Each broker has different strategies: some choose low fees but high minimums, while others have no minimum but slightly higher rates.

When trading CFD stocks, most do not charge a percentage-based stock trading fee. Instead, brokers earn from the spread, which is the difference between buy and sell prices. This cost is lower compared to larger contract values.