Classroom notes
Overnight inventory on the SET: a classroom walkthrough
How we read a Bangkok morning when the night session has already moved the inventory, using one week from the classroom binder.
Why the night matters in a Silom room
Many people who sit our Saturday workshop watch SET index futures. The night session, and the US hours that overlap it, often shift price away from the previous afternoon’s value before the Bangkok cash crowd is at the desk. If you start your profile at the 09:45 cash open without asking where overnight inventory sits, you are lettering a sequel without the previous chapter.
We treat overnight inventory as a location problem: is the Bangkok open above, inside, or below the prior regular-session value, and was the night a continuation or a return toward that value?
The week we keep reprinting
In May we reprinted a five-day stretch on SET50 futures in which Monday’s regular session balanced in a narrow value area. Monday night ran higher and left the Tuesday Bangkok open clearly above Monday value — long inventory, in the language we use at the table. Tuesday’s first hour did not auction back into Monday value; it built a new distribution up there. Students who ignored the night called Tuesday a ‘breakout.’ Students who marked the night called it a session that started already outside value and then accepted the higher location.
Wednesday night gave the inventory back. Thursday’s Bangkok open sat back inside Monday–Tuesday’s combined range. The useful work that morning was not a new pattern name. It was noticing that overnight inventory had been flattened, and that Thursday might spend its time deciding whether Tuesday’s higher value still attracted two-sided trade.
What we do not claim
This walkthrough is not a rule that ‘long overnight inventory must be sold.’ Plenty of mornings in Bangkok accept the night’s move. The classroom task is to locate the inventory and then watch the first hour’s TPOs: do they build at the new price, or do they reach back? Location first, then the auction. That order is the whole point of Saturday two.