I brought three SET50 charts and the same lot written in the margin of each. Malee covered the lots with a sheet of paper and made me compute the stop in baht first. Two of the three sizes dropped. The third, a tight flag, actually rose. I had been afraid of that one for no measured reason.
Suda’s folder
Suda Promchai keeps the books for her family’s rice shop in Thonburi and follows one agricultural future after the shop closes. For two years she used one lot on every idea because the broker’s ticket defaulted to it and changing the number felt like showing off. A wide weekly stop and a small intraday turn carried the same size. The wide ones hurt. She described the hurt as bad luck.
She sat the October 2025 studio and argued, politely, through evening three. Rounding down felt like leaving money on the table. Malee put both sizes on the board: the default lot against a twenty-point stop, and the divided size against the same stop, using Suda’s own risk unit of 1,500 baht. The default lot risked more than four times the unit she had said she could lose. Suda stopped arguing and wrote four units on the card.
She still thinks the room is solemn, and she would rather have finished in three nights. She also still has the folder. When the weekly chart is wide she drops the size without calling the desk. That was the agreement the card was for.