Session at a Glance

ASML’s blowout guidance ignites a semiconductor buying frenzy across Tokyo, Seoul, and Taipei.

Asian chipmakers roared back on Tuesday after ASML raised its full-year revenue forecast on surging AI equipment demand, snapping a three-day losing streak across the region’s tech-heavy indices. Taiwan’s TAIEX surged 4.2% led by MediaTek, South Korea’s KOSPI jumped 3.6% on a 6% Samsung rally, and the Nikkei gained 3.3% as SoftBank and Advantest drove over half the index move.

Oil prices retreating from a one-month high after mediators proposed a 10-day US-Iran ceasefire added a tailwind, easing the geopolitical risk premium that had weighed on sentiment. Hong Kong and Australia were the laggards — the Hang Seng was pinned flat by energy weakness (CNOOC fell on the oil pullback), while India’s Nifty slipped as HDFC Bank tumbled on disappointing Q1 margins.

The session’s through-line was clear: capital rotated hard into AI and semiconductor names at the expense of defensives, banks, and consumer staples across every major market.

Here are the standout movers across Asia-Pacific’s major exchanges for the session of Tuesday, July 21, grouped by market.

Australia (ASX)

↑ NST +3.26%

Mid-cap · 19.66 (local)

Why: Northern Star caught a bid from elevated gold prices and broad precious-metals strength, outperforming a flat ASX session as investors sought safe-haven allocation alongside the tech rally.

Pattern: Momentum continuation in the gold miner space — NST has been trending higher with gold above $2,400. Move is sector-driven rather than stock-specific, suggesting sustained flow into quality gold producers.

↓ MIN -3.48%

Mid-cap · 52.69 (local)

Why: Mineral Resources slipped on continued lithium profit-taking as Chinese lithium carbonate inventories remain elevated and seasonal salt-lake output from Qinghai adds supply, cooling spot pricing momentum.

Pattern: Mean-reversion pressure on a high-beta lithium play — MIN is down over 20% from its June peak. The pullback fits a positioning reset pattern rather than a structural break in the commodity cycle.

Hong Kong (HKEX)

↑ 1299 +1.58%

Large-cap · 76.95 (local)

Why: AIA Group edged higher as the insurer attracted defensive buying in a mixed Hong Kong session, with easing Middle East tensions and lower oil prices providing a modest macro tailwind for the broader financials sector.

Pattern: Steady grind higher within a range-bound channel — AIA’s 1.6% move is modest relative to the regional tech surge, consistent with defensive rotation rather than a breakout signal.

↓ 0883 -1.67%

Large-cap · 23.5 (local)

Why: CNOOC fell as Brent crude retreated from a one-month high after mediators proposed a US-Iran ceasefire, deflating the geopolitical risk premium that had supported energy names in prior sessions.

Pattern: Macro catalyst reversal — oil-linked names sold off across Asia as the ceasefire headline hit. Move is event-driven and could reverse quickly if mediation collapses; watch Brent $88 support.

China — Shanghai (SSE)

↑ 600030 +0.21%

Mid-cap · 28.34 (local)

Why: CITIC Securities posted a modest gain as the Shanghai Composite rallied 1.8% — brokerage stocks tend to benefit from rising market turnover and improved risk appetite, though the move was muted relative to the broader tape.

Pattern: Sector beta play — Chinese brokerages track index momentum with leverage. The small +0.21% move suggests institutional rotation was heavily concentrated in tech/semiconductor names rather than financials.

↓ 601988 -3.29%

Mid-cap · 5.88 (local)

Why: Bank of China dropped 3.3% as capital rotated aggressively out of state-owned bank stocks and into technology and semiconductor names during a broad Shanghai rally, a classic growth-over-value rotation day.

Pattern: Sector rotation sell — Chinese state banks had rallied hard as dividend plays earlier in 2026. Today’s move fits profit-taking by yield-chasers redeploying into the ASML-driven tech bid.

China — Shenzhen (SZSE)

↑ 002415 +2.42%

Mid-cap · 35.11 (local)

Why: Hikvision rose 2.4% as part of the broader tech rally across Chinese markets, benefiting from improved AI and semiconductor sentiment following ASML’s raised guidance and strong regional chip demand narrative.

Pattern: Momentum continuation in China tech — Hikvision fits the AI-adjacent theme as a machine vision and surveillance leader. Move aligns with sector-wide risk-on rotation into technology names on the Shenzhen board.

↓ 000858 -2.44%

Large-cap · 74.38 (local)

Why: Wuliangye fell 2.4% as investors rotated out of consumer staples and into technology stocks — baijiu names were the funding source for the semiconductor rally, a pattern seen repeatedly in Chinese markets this year.

Pattern: Sector rotation victim — Wuliangye has been under pressure as high-beta tech draws capital away from defensive consumer names. The move mirrors Bank of China’s sell-off, confirming a broad growth-over-defensives theme.

Japan (TSE)

↑ 9984 +6.03%

Mega-cap · 5751 (local)

Why: SoftBank surged 6% as the ASML earnings beat reignited confidence in AI infrastructure spending, with SoftBank contributing 183 points to the Nikkei’s 1,000+ point rally alongside Advantest and other chip-adjacent names.

Pattern: Momentum breakout recovery after a three-day losing streak — SoftBank’s AI investment thesis is a leveraged bet on the sector. The 6% move recaptures ground lost in the prior week’s AI profit-taking wave.

↓ 7974 -4.13%

Mega-cap · 6993 (local)

Why: Nintendo fell 4.1% as the gaming giant continued to underperform amid lingering concerns over Switch 2 pricing and a weak game showcase — the stock is down 45% over the past year and was a source of funds for the tech rally.

Pattern: Continued downtrend with no reversal signal — Nintendo has been in a structural decline since the Switch 2 pricing disappointment. Today’s drop accelerated as growth capital rotated into AI names; watch for potential capitulation.

Singapore (SGX)

↑ C6L +2.51%

Mid-cap · 7.77 (local)

Why: Singapore Airlines gained 2.5% as falling oil prices from Middle East ceasefire mediation directly lower the airline’s largest variable cost, boosting near-term earnings expectations and sector sentiment.

Pattern: Macro catalyst trade — airlines are a direct beneficiary of oil pullbacks. The move is correlated with the Brent retreat and could extend if mediation progresses, or reverse sharply if talks collapse.

South Korea (KOSPI)

↑ 005930 +6.15%

Mega-cap · 2.59e+05 (local)

Why: Samsung Electronics surged 6.2% as ASML’s raised semiconductor equipment guidance reinforced the AI memory demand thesis — Samsung also announced a new robotics division, adding a secondary catalyst for the mega-cap.

Pattern: Oversold bounce with fundamental catalyst — KOSPI had fallen 20% over the prior month on AI bubble fears. ASML’s beat gave buyers the confidence to step back in; Samsung recaptured key technical ground.

↓ 051910 -0.99%

Large-cap · 2.505e+05 (local)

Why: LG Chem slipped 1% as the battery and chemicals conglomerate missed the semiconductor rally — EV battery demand concerns and lithium price softness weighed, making it a relative laggard on a strong KOSPI day.

Pattern: Sector divergence — while AI-linked names surged, battery and EV-supply-chain stocks were left behind. LG Chem’s underperformance confirms capital was narrowly channeled into semiconductor plays, not broad tech.

Taiwan (TWSE)

↑ 2454 +9.88%

Large-cap · 3670 (local)

Why: MediaTek soared 9.9% as ASML’s raised forecast validated surging AI chip equipment demand — MediaTek’s own AI ASIC business is seen as a major growth engine for 2027-2028, and earnings are due July 24.

Pattern: Pre-earnings momentum surge driven by sector catalyst — the ASML beat + upcoming MediaTek results create a dual-catalyst setup. The near-10% move suggests aggressive positioning ahead of Thursday’s report.

India (NSE)

↑ BAJFINANCE +0.44%

Mid-cap · 1069 (local)

Why: Bajaj Finance posted a modest 0.4% gain, outperforming the weak Nifty as NBFC names held up better than banks — likely benefiting from relative-value rotation after HDFC Bank’s margin disappointment dragged the banking sector.

Pattern: Relative strength in a weak market — Bajaj Finance’s small positive move while HDFC Bank dropped nearly 2% suggests intra-financial rotation toward non-bank lenders. Not a breakout, but notable relative strength.

↓ HDFCBANK -1.97%

Mega-cap · 762.2 (local)

Why: HDFC Bank fell 2% after Q1 FY27 earnings revealed net interest margin compression to 3.26%, disappointing investors despite solid loan growth — the miss erased ₹64,686 crore in market cap and dragged the entire Nifty lower.

Pattern: Earnings-driven gap down in India’s largest private bank — margin compression signals that balance-sheet growth isn’t converting to profitability. This is fundamental, not technical; watch for follow-through selling.

New Zealand (NZX)

↑ AIR +2.35%

Large-cap · 0.435 (local)

Why: Air New Zealand rose 2.4% as oil prices retreated on Middle East ceasefire mediation — lower fuel costs are a direct earnings tailwind for the airline, mirroring Singapore Airlines’ rally in the same session.

Pattern: Macro catalyst trade in line with the global airline bid — the move is correlated with Brent’s pullback from $91 to $89. Both AP airline movers (AIR.NZ and C6L.SI) moving in tandem confirms a sector-wide oil-relief theme.

↓ SPK -1.61%

Mid-cap · 1.83 (local)

Why: Spark New Zealand fell 1.6% with no clear catalyst — the telecom may have faced profit-taking as investors rotated into more cyclical or tech-exposed names on a risk-on session across the Asia-Pacific region.

Pattern: Defensive sector underperformance on a risk-on day — telecoms typically lag when growth names rally hard. The move is modest and likely reflects portfolio rebalancing rather than any fundamental deterioration.

Reading the Session

The exchange-by-exchange breakdown above surfaces both market-specific catalysts and cross-border themes. When multiple exchanges move together, look for a macro driver (USD move, commodity price, risk-on/off shift). Isolated single-exchange moves tend to reflect local earnings, regulatory news, or sector rotation.

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