Arka AI Memory Tax

// WEEKLY SNAPSHOT · 2026-06-26 → 2026-07-02 (5 trading days)

A losing week — almost all of the -11.9% move came from our semiconductor tilt, not stock-picking.

The book fell about -11.9% this week as the Semiconductors (SEMI) factor alone subtracted roughly -15.8%, swamping small gains elsewhere. That lines up with the Korea chip-deleveraging shock and Meta's reported move to sell cloud compute, both of which intensified AI-capex overcapacity fears. Stock-picking was a minor part of the story, making up only about 6% of the total move — this was mostly a factor-driven week, not a stock-picking one.

Events this week

• 2026-06-29 South Korea unveiled a major AI/semiconductor industrial strategy anchored by Samsung Electronics and SK Hynix; market read-through was mixed as investors weighed strategic support against future memory-supply-glut risk.[1][2][3]
• 2026-06-29 Asia risk tape was choppy after the prior Korea-led chip deleveraging shock; South Korea's KOSPI pared losses to close only slightly lower as the Korea chip plan and U.S.-Iran truce/talks steadied sentiment.[1][2][3]
• 2026-07-01 Meta reportedly began building a cloud business to sell excess AI compute capacity; this intensified AI capex ROI / overcapacity fears and pressured AI infrastructure and neocloud-exposed names.[1][2][3]
• 2026-07-01 Fed Chair Kevin Warsh, speaking at the ECB forum in Sintra, reiterated commitment to the Fed's 2% inflation target, emphasized independence, and pushed back against giving explicit forward guidance.[1][2][3]
• 2026-07-02 U.S. nonfarm payrolls slowed sharply to 57k jobs in June versus roughly 110k expected; this reduced near-term Fed-hike pressure but added to growth-slowdown concerns.[1][2][3]
• 2026-07-02 U.S. semiconductor selloff intensified: the SOX index fell roughly 5.4% for a second straight down day, with weakness across AI and memory-linked names; Nasdaq underperformed even as the Dow closed at a record.[1][2][3]
• 2026-07-02 Fed's Daly said U.S. policy was “slightly restrictive” and the next move remained uncertain; she highlighted both persistent-inflation risk and the risk that AI investment slows if returns remain unclear.[1][2][3]
• 2026-07-02 Korea/Asia chip deleveraging remained a key global signal: reports showed KOSPI down sharply again, with SK Hynix and Samsung Electronics under heavy pressure as leveraged ETF selling and concerns about large new memory investments amplified volatility.[1][2][3]
• 2026-07-03 Reuters Morning Bid framed the macro tape as “soft jobs, hard choices”: weaker payrolls eased dollar/rate pressure, but chip stocks remained under pressure as investors rotated away from AI-heavy exposure.[1][2][3]
• 2026-07-04 U.S. cash equity markets were closed for the Independence Day holiday; no new U.S. market price signal for the weekly snapshot.[1][2][3]