Journal
Volume on SET names versus US large-caps during a pullback
Afternoon liquidity in Bangkok does not read like a New York pullback. Comparing the two without context is how students misread a 'dry' retracement.
Week three of the intensive spends a full evening on volume, and it is the evening that produces the most argument. Students who learned from US textbooks look for a pullback on declining volume and treat it as healthy. On many SET names, the afternoon session can go quiet for reasons that have nothing to do with the swing.
The Stock Exchange of Thailand still runs a lunch break. Volume often bunches into the open, the reopen at 14:00, and the last half hour. A midday bar that looks 'dry' on a compressed daily candle may simply be the lunch print. Before you call a pullback orderly, look at which clock hours built the bar. We keep a small clock sketch in the margin of the pack for that reason.
US large-caps, watched from here, have the opposite problem. You see the full cash session as one completed bar the next morning. A pullback day with lower volume than the prior thrust can be a genuine pause. It can also be a day when the name rotated quietly while an index heavyweight soaked the tape. We do not have the session-by-session feel unless you stayed up. Nalinee’s rule in coaching is blunt: if you did not watch the session, do not pretend the volume bar is a story you witnessed. Treat it as a count, then check the weekly bar before you add.
Thin SET names deserve a second caution. A 'climax' volume day can be a single local fund finishing a ticket. We ask students to note whether the print coincided with a company notice, a inclusion rumour, or simply a round number that retail likes. If you cannot say, you may still use the high or low as structure — but you should not treat the volume as confirmation the way a liquid US name might allow.
The practical homework is comparative. Take one SET name you hold and one US name you hold. On the last three pullbacks, write the volume of the down days as a fraction of the prior up day. Then write whether you were awake for the US session. The fractions will not match, and that mismatch is the lesson, not a puzzle to force into one rule.