Daily Woody Economy | Weekly Review · Jun 29–Jul 3, 2026 — Meta shock, −7.89%, and a same-day 100-trillion-won bet

WEEKLY REVIEW
Daily Woody Economy
A digital economy paper by editor Woody · the week in review and ahead
Jun 29 – Jul 3, 2026 (Mon–Fri)  ·  Weekly No. 1
This Week at a Glance
The same chip scare barely moved Wall Street, yet knocked 7.89% off the KOSPI in a single day. When four semiconductor names carry 61% of your index, there is no rotation left to hide in. And on the very day the market priced a ‘memory peak,’ Korea’s chipmakers stood before the president and pledged 100 trillion won of new capacity.
The Global Read · Why It Matters

For global readers, Korea is where the AI-memory question gets its most sensitive real-time vote. When a report that Meta might resell spare compute revived the fear that AI-infrastructure spending had crested, New York shrugged it off—the Dow set a record as money rotated within a deep market. Seoul could not rotate: four chip names carry 61% of the KOSPI, so the same worry became a 7.89% single-day fall, the sharpest verdict yet on whether the memory cycle has topped. On that same afternoon, SK Hynix and Samsung pledged about 240 trillion won ($156bn) in new fabs—the supply side betting the other way. Samsung’s Q2 flash results on July 7 are the first hard test, and an early tell for the global AI trade.

KOSPI · The Week’s Path
8,476 8,088 7,648 prev Fri close 8,411 8,395 8,476 8,303 7,648 8,088 ▼ 0.20% ▲ 0.97% ▼ 2.04% ▼ 7.89% ▲ 5.76% Mon 6/29 Tue 6/30 Wed 7/1 Thu 7/2 Fri 7/3
Daily closes (Mon–Fri). Week −3.84% (8,088.34 vs prev Fri close 8,411.21). From the intraweek closing high of 8,476.48 (Tue) down to 7,648.09 (Thu), then a one-day snap back to 8,088.34. Friday’s intraday low was 7,378.10; its 758-point high–low range was the second-widest on record. · Sources: Korea Exchange, Financial News, Yonhap.
The Markets This Week
Indices · WoW (vs prev Fri close) KOSPI 8,088.34 −3.84% | KOSDAQ 868.41 +2.00% | S&P 500 7,483.24 +1.8% (Jul 2 close; US closed Jul 3) | Nasdaq 25,832.67 +2.1% (Jul 2 close)
FX · intraweek USD/KRW 1,555.8 (Jul 2 close · 17-yr high, since Mar 2009); opened 1,544.5 on Jul 3 | KRW/JPY (100) 954.87 (recent close)
Commodities & Bonds · Jul 2 close WTI $68.48 −0.3% | Gold $4,189 +1.5% | Silver $62.9 +3.0% | US 10Y 4.48% (eased after testing 4.5%)
Crypto · Jul 3 BTC/USD ~$61,500 +2.5% | BTC/KRW ~95.0m won est. (cross-rate)
Stocks of the Week · The Chip Duo Samsung Jul 2 −9.06% → Jul 3 +8.22% | SK Hynix Jul 2 −14.57% → Jul 3 +10.88%
Reference point is labeled per line. US indices, commodities and bonds are at the Jul 2 close, as US markets were shut on Jul 3. · Sources: Investing.com, Yahoo Finance, Trading Economics, CoinDesk, Seoul Money Brokerage, Korea Exchange.
Throughline

One sentence split two markets. On Wednesday night US time, word that Meta was weighing selling its spare compute as an external cloud revived the read that AI-infrastructure spending had passed its peak. In New York, Micron fell more than 10% and chips slid for a second day—but money rotated into the Dow, which set a fresh record, while the S&P 500 held flat and the Nasdaq lost just 0.8%. When the same worry reached Seoul on Thursday, the KOSPI dropped 7.89% in a single day. The difference was structural: with 61% of KOSPI market value sitting in four chip names, there was no rotation to escape into.

Yet on the very day the market was pricing a ‘peak,’ the companies were pricing expansion. At a July 2 briefing chaired by President Lee Jae-myung, SK Hynix pledged 100 trillion won (about $65bn) for Cheongju—80 trillion for the M17 NAND fab, 20 trillion for advanced packaging (P&T7 and others)—and Samsung added 140 trillion won ($91bn) across the Chungcheong region. SK Hynix chief Kwak Noh-jung said NAND demand was surging while supply fell short. Brokerages largely read it the same way: this correction looks less like a break in fundamentals than like profit-taking after a doubling, with the Meta news serving as the trigger.

So the week’s pages carried two prices for the same fact, side by side. On the crash day alone, retail investors bought 2.0 trillion won of Samsung and 4.6 trillion of SK Hynix on the dip, while foreigners sold for a tenth straight session. Which price is right won’t be settled at the order book. Samsung’s Q2 flash results on July 7 are the first scorecard. The KOSPI has done this before—a 10% single-day plunge from a record high, then a snap-back just last week—so this week’s V is that rhythm repeating.

The Week’s Top 5
1A ‘Meta shock’ sinks the KOSPI 7.89%—then a 5.76% snap-back a day later

On July 2 the KOSPI closed down 655.32 points (7.89%) at 7,648.09, triggering the year’s 15th sell-side sidecar. Foreigners net-sold more than 5 trillion won of Korean stocks; Samsung fell 9.06% and SK Hynix 14.57%. The next day, institutions bought 3.76 trillion won of tech and the index rebounded 440.25 points (5.76%) to reclaim 8,000. KOSDAQ, home to smaller names, fell 6.74% Thursday but rose only 0.19% Friday—a gap that shows how narrowly the rebound was led by large caps.

➤ When one chip stock swings more in a day than bitcoin, the index has started trading like a single name.

Sources: Financial News, Hankook Ilbo, Herald Economy, Yonhap (Jul 2–3, 2026).

2SK Hynix pledges 100tn won, Samsung 140tn—a chip bet in Chungcheong

On the same day as the crash, at a national briefing chaired by President Lee Jae-myung, SK Hynix announced a 100 trillion won (about $65bn) investment in Cheongju: 80 trillion for the new M17 NAND fab (ground-breaking next year, operating in H1 2029) and 20 trillion for advanced packaging (P&T7 and others, done by end-2027). Samsung added 140 trillion won ($91bn) in the region; and beyond Cheongju, SK has separately laid out a reported 900-trillion-won ($583bn) southwestern mega-cluster, underscoring the scale of its long-term build-out. The stated reason: NAND demand is surging while supply falls short.

➤ As the market priced a ‘peak,’ the builders priced a ‘shortage’—on the same afternoon.

Sources: SK Hynix Newsroom, Financial News, Newspim, Etoday (Jul 2, 2026).

3June exports hit $102.25bn—the first-ever $100bn month

June exports rose 70.9% year-on-year to $102.25bn, the first time Korea—an economy whose trade leans heavily on chips—has cleared $100bn in a single month, driven by surging semiconductor prices. In the same window, June CPI ran at 3.2%, the hottest since December 2023, and USD/KRW climbed to 1,555.8, a 17-year high. Computer-goods prices even rose 22.2% in June on memory strength, so that heat spread into domestic inflation as well. The strength and the strain traced back to the same source.

➤ Record exports and a 17-year-high won flow from the same chips; the knot hasn’t loosened.

Sources: Yonhap, Trading Economics (Jul 1–2, 2026).

4Retail buys 6.6tn won in a day; foreigners sell for a 10th straight session

On the crash day, retail investors net-bought 5.396 trillion won of KOSPI stocks—of which 4.593 trillion went into SK Hynix and 2.023 trillion into Samsung, so 6.616 trillion piled into just two names. Foreigners instead picked Leeno and Hyundai Motor; institutions took SK Square and financials. Korea’s retail base leans hard on single-stock leveraged ETFs, which magnified losses to two or three times the underlying; forced liquidations reached 3.15 trillion won in the first half.

➤ The more retail’s dip-buying concentrates in two names, the more that concentration feeds the index’s swings.

Sources: Financial News, Etoday, Newsis (Jul 2–3, 2026).

5The Middle East war ends; oil returns to pre-war levels

With Strait of Hormuz traffic normalizing and indirect US–Iran talks advancing, WTI slipped to around $68, unwinding the spike from March’s conflict. As the oil premium faded, the US 10-year yield eased back below 4.5%. Fed chair Kevin Warsh said inflation risks had softened but kept a rate hike on the table for this year, though a softer-than-expected early-July jobs report pushed back bets on an imminent move.

➤ With oil vacating the seat it took in March, a single sector now fills it.

Sources: CNBC, Trading Economics (Jun 24 – Jul 2, 2026).

The Week Ahead
Jul 7 · Samsung Q2 flash—first read on the ‘peak’ debate
Because the week’s sell-off leaned on a ‘memory demand has peaked’ story, results that beat expectations would take much of the air out of doubts over AI-spending durability; a miss would give the ‘peak-out’ read more weight. Daishin and Samsung Securities frame it as the moment to check demand and margins against actual numbers. Meanwhile US rival Micron has already locked in 16 five-year supply contracts—with customers including four hyperscalers—backed by $22bn in deposits and letters of credit, so by contract at least the demand is spoken for.
Jul 16 · Bank of Korea rate decision—prices vs. growth
June CPI at 3.2% and a 1,555-won dollar argue for a hike; market volatility and slowdown signals argue for a hold. As long as the Korea–US rate gap keeps pushing the won weaker, this call can’t be explained by prices, FX or equities alone. That said, the Bank of Korea expects July inflation to ease from June as oil unwinds, which could soften the case for a hike.
Jul 10 · SK Hynix ADR listing, then late-month earnings
SK Hynix’s July 10 ADR listing is followed by its own earnings on the 29th and a run of US Big Tech (M7) results in late July. This is the stretch where the direction of chip supply and demand gets tested against real figures.
Seasonality vs. expectations—July is statistically an ‘up’ month
Over 1980–2025, the KOSPI’s average July return was 2.18%, second only to November, with the highest share of positive closes of any month. But seasonality is only backdrop; the counter-view holds that this July’s real variable is earnings expectations. Checking the first number on the 7th beats leaning on the calendar.

Daily Woody Economy · Weekly Review

Daily Woody Economy is published by editor Woody, who uses Anthropic’s Claude AI as a tool for news research, analysis, and editing. Some analysis and beneath-the-headline reads include AI-assisted content; readers are encouraged to apply their own judgment and cross-verify.

Investment-related content on this page is for reference only and is neither a recommendation nor a forecast. All investment decisions are the reader’s own responsibility.

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