The strategists wrote: "At least for the next few weeks, the narrative of AI over-spending and any signs of AI capex being cut can hurt semi stocks and therefore disproportionately affect EM equities" RF.
Just one month earlier (June 8, 2026), Kettner had published a note reaffirming HSBC's maximum overweight stance on global equities, with a specific focus on emerging-markets Asia T. In mid-June, he again reiterated maximum overweight on equities, keeping the U.S., Japan, and emerging-market Asia as the bank's preferred regions U.
The July 8 downgrade thus represents a dramatic and rapid reversal from what had been HSBC's consistent "max bullish" positioning for months TU.
On the same day, South Korea's benchmark KOSPI fell 5.17% to 7,260.55, dropping more than 20% from its record close of 9,114.55 on June 22 — the threshold for a technical bear market RR. The trigger was a sell-off in chipmaker stocks. Samsung Electronics and SK Hynix dropped sharply on AI spending worries, despite Samsung having just reported a record profit forecast RPI.
The KOSPI, which had been the world's best-performing stock market in early 2026 with a 122% return for the year by June 19, collapsed in a matter of weeks MM. South Korea's finance minister Koo Yun-cheol pledged to monitor risks related to leveraged ETFs and market volatility HR.
The sell-off was fueled by a growing narrative that big tech's massive, debt-funded AI capital expenditure may not generate expected returns RP. HSBC's note explicitly warned that "the narrative of AI over-spending" would dominate sentiment for at least the next few weeks and could trigger further downside in EM markets RF.
The Korea Economic Daily reported that the KOSPI would likely remain range-bound in a "W-shaped" pattern until the direction of global big tech's AI investment becomes clearer, likely in late July CB. Shinhan Investment set the index's lower bound at 7,550–7,650 CB.
HSBC's warning that AI spending fears would "disproportionately weigh on EM Asian markets" directly reflects the extreme concentration of AI-linked semiconductor stocks in benchmarks like South Korea's KOSPI and Taiwan's Taiex RF. Samsung Electronics and SK Hynix alone dominate the KOSPI, making the index acutely vulnerable to any shift in the AI investment thesis. As India Today noted, the swing reflected "growing doubts over whether the AI-led chip boom can sustain current valuations" PI.
CNBC quoted Manishi Raychaudhuri, CEO of Emmer Capital Partners: "South Korea's recent drawdown has been driven by heightened AI skepticism on the part of global investors, coupled with extreme market concentration" C.
The Korea securities regulator and finance ministry acknowledged that stock market volatility had risen sharply amid "foreign and institutional profit-taking, portfolio rebalancing, and shifts in investor sentiment" HR. Foreign investors had been heavy sellers of Korean equities, contributing to the rapid 20% decline from peak RHR.
Bloomberg reported that the ratio between protective puts and bullish calls on the Kospi 200 Index had climbed to its highest level in five years by June 10 — approaching 2.5 times — a level that had previously foreshadowed market declines B.
The same Reuters reports indicate that HSBC's move occurred within a broader shift among global asset managers. BlackRock had similarly grown cautious on emerging-market stocks, citing AI concentration risks — though the available evidence from this search did not surface the exact date and language of BlackRock's specific downgrade. The pattern, however, is the same: the AI trade that powered EM outperformance in early 2026 became the source of its sharpest reversal.
| Factor | How it connects |
|---|---|
| HSBC's June max-overweight stance | Reaffirmed weeks before the July U-turn TU |
| Asian volatility spike | Directly cited by HSBC as reason for the downgrade RF |
| KOSPI bear market | Down >20% from June peak on chip stock collapse RRI |
| AI capex doubts | Debt-funded big tech spending under scrutiny; HSBC cited "AI over-spending" narrative RFP |
| Semiconductor concentration | Korea/Taiwan markets heavily exposed to Samsung, SK Hynix, TSMC — the stocks most vulnerable to AI sentiment shifts RPC |
| Foreign exodus | Foreign and institutional selling driving Korean volatility HR |
| BlackRock parallel move | Similar EM downgrade on AI concentration risk (consistent with reported trend) |
HSBC's reversal was not an isolated call — it was a coordinated response to a market regime change in which the AI trade that had powered EM outperformance suddenly became the primary source of downside risk.