Hang Seng Index Rebound Meets Nasdaq’s 25,000 ‘Last Line of Defence’

The Hang Seng Index slipped nearly 250 points to 24,963 on July 24, relinquishing the 25,000 level for the second time in a week after a 2% slide in the Nasdaq. The benchmark has spent most of the past 10 days sandwiched between its 50‑day moving average (now at 24,634) and the 100‑day line, leaving a modest buffer above near‑term support. For the month so far, the index is up roughly 2,082 points, clawing back about 72% of the 2,900‑point decline in May and June — slightly more than the typical two‑thirds retracement.

Across the Pacific, the Nasdaq Composite tumbled to an intraday low of 24,954 on July 23, its weakest reading since 5 May and dangerously close to the round 25,000 mark. The index has not closed below 25,000 since the rally that began in late March, making this level a de facto floor for the current cycle. A single heavy sell‑off in Alphabet — down roughly 7% despite reporting net profit that nearly tripled — set the tone, after the Google parent raised its 2026 capital spending cap by $15 billion to $205 billion and projected outlays of $375 billion in 2027 and $400 billion in 2028, stoking anxiety about the returns on AI investment.

Now attention shifts to South Korea’s SK Hynix, which reports quarterly results on July 28. Its US‑listed ADR (SKHY.US) briefly dipped below the $149 issue price to $145.57 on July 17, before recovering to above $160. Consensus forecasts project net profit growth of more than 650%, but the stock’s recent fragility means another breach of $149 could amplify the negative sentiment already weighing on US tech.

Why Hong Kong Has Struggled to Match US AI Gains — and What Nasdaq’s Sell‑Off Signals

Why Hang Seng’s Rebound Has Legs — But Needs a Clean Break Above 25,000

The July bounce has been statistically respectable, but the Hang Seng needs three consecutive closes above 25,000 to confirm that the uptrend has genuine momentum rather than merely tracking a declining moving average. While the 50‑day line at 24,634 provides support, a drift lower along that line would do little for investor confidence. On the valuation side, two of the index’s heavyweights — Tencent (P/E 14.84) and Alibaba (P/E 17.58) — trade at steep discounts to the industry average of 25 times, creating room for catch‑up if China’s macro picture stabilises. However, second‑quarter GDP growth of 4.3%, below the 4.5% consensus, shows that the domestic economy is not yet providing a strong tailwind for these consumer‑focused tech names.

The Structural Divergence Between Hang Seng and Nasdaq

The complaint that Hong Kong “follows when the US falls but not when it rises” rests on two pillars. First, the sheer size of the US market — roughly $75 trillion in market capitalisation vs. Hong Kong’s $7 trillion — means a US sell‑off creates liquidity and risk‑aversion waves that smaller markets cannot resist. Second, the Hang Seng lacks stocks with direct exposure to the AI value chain. Its dominant tech constituents are consumer platforms whose fortunes are tied to Chinese household spending, not enterprise AI adoption. Until that composition changes, the correlation will remain asymmetric.

Nasdaq’s 25,000 Floor and the SK Hynix Test

The Nasdaq’s drop to 24,954 matters because it brings the index to a threshold that has held since the March rally lifted it from 20,690. A weekly close below 25,000 would signal that the move was not a mere shakeout but a potential trend change, with the distance to the March low — over 4,300 points — illustrating how much downside remains if support fails. SK Hynix’s report on July 28 is the next catalyst. As a key supplier to the AI memory boom, the company embodies the very theme that drove the rally. If the ADR slips back below $149 after the results, it would underscore the market’s growing unease that even the most direct AI beneficiaries cannot justify current valuations when capex fears are running this high.

What to Watch in the Week Ahead: Key Levels for Hang Seng and Nasdaq

Key levels to watch in the days ahead:

  • Hang Seng 25,000: Three consecutive closes above this mark would be the strongest signal yet that the July rally can extend. A failure to hold above the 50‑day moving average (24,634), by contrast, would call the rebound into question.
  • Nasdaq 25,000: A weekly close below 25,000 would break the floor established in late March; the index’s March low of 20,690 then becomes the next reference point.
  • SK Hynix ADR $149: The $149 IPO price is a technical and psychological line. A post‑earnings slide below it — especially if profit growth meets the 650%-plus forecast — would signal that AI spending anxiety is outweighing even stellar operational numbers.