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Thailand’s SET index closed at 1,635 on July 18, 2026 — roughly flat on the week, which is not a bad place to be when you consider it came from around 1,144 points in 2025. That 43% recovery is one of the stronger moves in Southeast Asia over the past 12 months. The question going into Q3 is whether earnings can justify where prices are now.
The H1 Rally in Context
The SET’s first-half recovery had real drivers. The BOI announced a 2-billion-baht AI and electronics investment program that attracted foreign capital commitments. Foreign inflows returned to Thai equities after a prolonged drought. The banking sector posted better-than-expected Q1 earnings as net interest margins held up despite the BOT’s rate pause. Global gold prices climbed sharply in H1, boosting SET-listed gold retailers and related names. Energy stocks caught a bid as Brent crude recovered from late-2025 lows. The rally was broad-based, not a one-sector story.
SET vs ASEAN Peers
The 43% recovery looks impressive in isolation, but Thailand’s index is not the cheapest in ASEAN by forward P/E. The Philippine PSEi, Jakarta Composite, and Singapore STI have all had strong years driven by similar themes. Thailand carries political risk that most regional peers don’t — that’s always been the discount in the SET, and it hasn’t disappeared. The banking sector, which makes up a significant chunk of the SET50, trades at reasonable multiples given the rate environment.
Q3 Risks to Watch
The Fed meeting on July 29 is the first Q3 risk event. A hold is expected at 86.7% probability, but the language in the statement matters. If the Fed signals that cuts are possible later in 2026, global risk appetite improves and Thailand tends to benefit because of its export-heavy composition and foreign capital sensitivity.
The baht at USD/THB 33.60 helps exporters but hurts companies with dollar-denominated liabilities. Q2 earnings season, running through August, is where the H1 rally gets tested. Markets have already priced strong H1 growth. Forward guidance from Thai corporates is what Q3 hinges on.
Which Sectors Look Interesting
Banking stocks are the largest SET50 component. KBank (กสิกรไทย), SCB (ไทยพาณิชย์), and Krungsri (กรุงศรีอยุธยา) all delivered Q1 numbers that beat conservative expectations. If Q2 matches, the sector holds its ground. Energy names like PTT benefit from higher Brent crude but carry Middle East risk. The BOI-backed tech and AI infrastructure plays are genuinely long-dated bets — the narrative is there, the earnings are still thin.
What This Means for Thai Investors
At 1,635, the SET is not cheap enough to be an obvious buy after a 43% rally, but not stretched enough to be obviously dangerous. Systematic monthly investment in SET50 index funds or ETFs, rather than trying to time a single entry, is the more practical approach. If the market dips to 1,580–1,600 on Fed volatility, that becomes a more attractive level to add.
Short-term traders should watch 1,650 as the key resistance level. Three failures at that level would suggest the market needs more time or better earnings to break through.
The Q3 Outlook
The most likely Q3 path is consolidation between 1,580 and 1,660 as the market digests H1 gains and waits for earnings data. A strong Q2 earnings season combined with a clean Fed hold could push SET above 1,650 and toward 1,700 by September. Disappointing bank earnings or a hawkish Fed surprise would send it back toward 1,580. Either way, this market has more fundamental support than it did a year ago.
