# SignalStack

> Korea Alpha on SignalStack: English investment intelligence for Korean equities—why names move, what foreigners buy, and which themes matter. Analyst synthesis from DART and local context, not translation. Not investment advice.

SignalStack is SignalStack Korea Alpha—English investment intelligence on KRX names for global allocators. Reports synthesize DART filings, local news, and flow context with bull/bear frames. Not investment advice. Contact: help@signalstack.news

## Site

- [Home](https://www.signalstack.news/): Korea desk home
- [Korea stocks](https://www.signalstack.news/kr/): KRX ticker hubs
- [Research](https://www.signalstack.news/research/): Published Korea Alpha briefs
- [Blog](https://www.signalstack.news/blog/): Full article archive
- [Search](https://www.signalstack.news/search/): Full-text article search
- [RSS](https://www.signalstack.news/rss.xml): Machine-readable feed (all posts)
- [Sitemap](https://www.signalstack.news/sitemap-index.xml): Canonical URL index for crawlers

## Editorial & policies

- [About](https://www.signalstack.news/about/): Mission and corrections
- [Editorial standards](https://www.signalstack.news/editorial/): Sourcing, structure, markets coverage
- [Disclaimer](https://www.signalstack.news/disclaimer/): Not professional advice
- [Privacy](https://www.signalstack.news/privacy/): Data and cookies
- [Terms](https://www.signalstack.news/terms/): Site use terms
- [Contact](https://www.signalstack.news/contact/): Reader and partner inquiries

## Korea coverage

- [Korea stocks](https://www.signalstack.news/kr/): Ticker hubs with published briefs
- [Foreign money](https://www.signalstack.news/smart-money/): Smart-money weekly synthesis

## Latest articles

- [Valve's Steam Machine (2026): $1,049, Lottery Reservations, and the 2015 Brand Returns](https://www.signalstack.news/blog/steam-machine-launches-with-new-reservation-system-and-pricing/) ([markdown](https://www.signalstack.news/blog/steam-machine-launches-with-new-reservation-system-and-pricing.md)): Valve officially revived the Steam Machine name for its 2026 SteamOS living-room PC—$1,049 entry, randomized reservations through June 25, … (Gaming, 2026-06-23)
- [Deno Desktop: Build Cross-Platform Apps with Web Tech](https://www.signalstack.news/blog/deno-desktop-build-cross-platform-apps-with-web-tech/) ([markdown](https://www.signalstack.news/blog/deno-desktop-build-cross-platform-apps-with-web-tech.md)): Deno Desktop: Build Cross-Platform Apps with Web Tech TLDR Deno Desktop, launching in Deno v2.9.0, enables developers to transform any Deno… (Security, 2026-06-23)
- [GLM-5.2: How Zhipu AI's Powerful Open Model Runs Locally](https://www.signalstack.news/blog/glm-5-2-how-zhipu-ais-powerful-open-model-runs-locally/) ([markdown](https://www.signalstack.news/blog/glm-5-2-how-zhipu-ais-powerful-open-model-runs-locally.md)): GLM-5.2: How Zhipu AI's Powerful Open Model Runs Locally TLDR Zhipu AI's GLM-5.2, a leading open-weight AI model, is now optimized for loca… (Security, 2026-06-23)
- [Apertus Open Foundation Launches for Sovereign AI with EU Compliance](https://www.signalstack.news/blog/apertus-open-foundation-launches-for-sovereign-ai-with-eu-compliance/) ([markdown](https://www.signalstack.news/blog/apertus-open-foundation-launches-for-sovereign-ai-with-eu-compliance.md)): Apertus Open Foundation Launches for Sovereign AI with EU Compliance TLDR The Swiss AI Initiative, a collaboration between EPFL, ETH Zurich… (Security, 2026-06-22)
- [Information Overload: Why Our Brains Struggle with Constant Bad News](https://www.signalstack.news/blog/information-overload-why-our-brains-struggle-with-constant-bad-news/) ([markdown](https://www.signalstack.news/blog/information-overload-why-our-brains-struggle-with-constant-bad-news.md)): Information Overload: Why Our Brains Struggle with Constant Bad News TLDR The human brain, evolved for local threats, is overwhelmed by the… (Security, 2026-06-22)
- [Claude AI Mandates Identity Verification for Platform Integrity](https://www.signalstack.news/blog/claude-ai-mandates-identity-verification-for-platform-integrity/) ([markdown](https://www.signalstack.news/blog/claude-ai-mandates-identity-verification-for-platform-integrity.md)): Claude AI Mandates Identity Verification for Platform Integrity TLDR Claude AI mandates identity verification for platform integrity and co… (Security, 2026-06-22)
- [Hanmi Semiconductor (042700): Chairman's Share Purchase and SpaceX Investment Signal Strategic Confidence Amidst High Valuation](https://www.signalstack.news/blog/hanmi-semiconductor-042700-chairmans-share-purchase-and-spacex-investment-signal/) ([markdown](https://www.signalstack.news/blog/hanmi-semiconductor-042700-chairmans-share-purchase-and-spacex-investment-signal.md)): Hanmi Semiconductor (042700) is bolstering its HBM leadership and expanding into AI/aerospace via a SpaceX investment and chairman's share … (Securities, 2026-06-21)
- [LG Energy Solution (373220): Patent Settlement & Strategic Talent Drive Signal H2 Recovery](https://www.signalstack.news/blog/lg-energy-solution-373220-patent-settlement-strategic-talent-drive-signal-h2-rec/) ([markdown](https://www.signalstack.news/blog/lg-energy-solution-373220-patent-settlement-strategic-talent-drive-signal-h2-rec.md)): LG Energy Solution (373220) recently settled a key patent dispute and is aggressively recruiting global talent, signaling a strategic push … (Securities, 2026-06-21)
- [Financials (XLF) Outperform S&P 500 by +0.60% as Tech Leads](https://www.signalstack.news/blog/financials-xlf-outperform-s-p-500-by-0-60-as-tech-leads/) ([markdown](https://www.signalstack.news/blog/financials-xlf-outperform-s-p-500-by-0-60-as-tech-leads.md)): Financials (XLF) Outperform S&P 500 by +0.60% Amid Mixed 'Risk-On' Market (Securities, 2026-06-17)
- [Meta Platforms (META) Rises 1.13% to $600.21 as Threads Hits 500M Users, Outperforming Tech Sector](https://www.signalstack.news/blog/meta-platforms-meta-rises-1-13-to-600-21-as-threads-hits-500m-users-outperformin/) ([markdown](https://www.signalstack.news/blog/meta-platforms-meta-rises-1-13-to-600-21-as-threads-hits-500m-users-outperformin.md)): Meta Platforms (META) Gains 1.13% to $600.21 on Threads User Milestone, Outperforms Lagging Tech Sector (Securities, 2026-06-17)
- [Invesco QQQ Trust (QQQ) Rises +3.38%, Outperforming SPY Amid Tech-Led Rally](https://www.signalstack.news/blog/invesco-qqq-trust-qqq-rises-3-38-outperforming-spy-amid-tech-led-rally/) ([markdown](https://www.signalstack.news/blog/invesco-qqq-trust-qqq-rises-3-38-outperforming-spy-amid-tech-led-rally.md)): Nasdaq 100 ETF (QQQ) Surges +3.38% to $717.12, Leading Market as Tech Outperforms SPY. (Securities, 2026-06-12)
- [Tesla (TSLA) Rises 4.60% as SpaceX IPO Buzz Fuels Consumer Discretionary Outperformance](https://www.signalstack.news/blog/tesla-tsla-rises-4-60-as-spacex-ipo-buzz-fuels-consumer-discretionary-outperform/) ([markdown](https://www.signalstack.news/blog/tesla-tsla-rises-4-60-as-spacex-ipo-buzz-fuels-consumer-discretionary-outperform.md)): Tesla (TSLA) Surges 4.60% to $399.15 on SpaceX IPO Speculation and JPMorgan 'Forever Stock' Call, Leading Consumer Discretionary Sector. (Securities, 2026-06-12)
- [XOM Stock Climbs 1.92% as Energy Defies Risk-Off Market: Can the Rally Last?](https://www.signalstack.news/blog/xom-stock-climbs-1-92-as-energy-defies-risk-off-market-can-the-rally-last/) ([markdown](https://www.signalstack.news/blog/xom-stock-climbs-1-92-as-energy-defies-risk-off-market-can-the-rally-last.md)): In focus: XOM Stock Surges 1.92% to $151.04, Leading Energy Sector Outperformance Amidst Broad Market Decline. Key takeaways 01 · Catalyst … (Securities, 2026-04-29)
- [CVX Stock Climbs +2.20% as Energy Outperforms—Is the Oil Rally Reigniting?](https://www.signalstack.news/blog/cvx-stock-climbs-2-20-as-energy-outperforms-is-the-oil-rally-reigniting/) ([markdown](https://www.signalstack.news/blog/cvx-stock-climbs-2-20-as-energy-outperforms-is-the-oil-rally-reigniting.md)): SignalStack analysis: Chevron (CVX) defensive rotation vs growth, peer valuation vs XOM & XLE, SRC stake-sale read-through, and May 1 earni… (Securities, 2026-04-28)
- [Vercel Confirms Security Breach Stemming from Third-Party AI Tool Compromise](https://www.signalstack.news/blog/vercel-confirms-security-breach-stemming-from-third-party-ai-tool-compromise/) ([markdown](https://www.signalstack.news/blog/vercel-confirms-security-breach-stemming-from-third-party-ai-tool-compromise.md)): SignalStack security brief: Vercel April 2026 incident—Context.ai vector, non-sensitive env vars, Google Workspace IOC, rotation playbook, … (Tech, 2026-04-20)
- [AMD Stock Surges 7.8% — Is the AI Rally Just Getting Started?](https://www.signalstack.news/blog/amd-leads-tech-rally-amid-robust-ai-demand-and-easing-macro-tensions/) ([markdown](https://www.signalstack.news/blog/amd-leads-tech-rally-amid-robust-ai-demand-and-easing-macro-tensions.md)): AMD stock snapshot: +7.8% move, AI chip demand, semiconductor rally vs SPY, risk-on tape with XLK, P/E and forward multiples, earnings prev… (Securities, 2026-04-17)
- [Amazon (AMZN) & NVIDIA (NVDA) Stock Brief: AI Capex, SMH & XLY vs S&P 500 — Market Snapshot](https://www.signalstack.news/blog/megacap-tech-navigates-ai-investments-and-sector-dynamics-amazon-outperforms-nvi/) ([markdown](https://www.signalstack.news/blog/megacap-tech-navigates-ai-investments-and-sector-dynamics-amazon-outperforms-nvi.md)): AMZN vs NVDA tape vs SPY, XLY & SMH, hyperscaler AI capex ($600B–$700B context), Zoox/NHTSA—primary IR, Goldman macro, NVIDIA AI stack link… (Securities, 2026-04-07)
- [Apple (AAPL) Stock Brief: AI, China & Supply Chain — Market Snapshot](https://www.signalstack.news/blog/apples-strategic-shifts-and-ai-focus-amidst-regulatory-scrutiny/) ([markdown](https://www.signalstack.news/blog/apples-strategic-shifts-and-ai-focus-amidst-regulatory-scrutiny.md)): AAPL vs Nasdaq tape, XLK/XLF, IR-backed revenue & iPhone growth, India supply chain, Apple Intelligence, China App Store risk—primary sourc… (Securities, 2026-04-06)
- [Anthropic Closes the Subscription Backdoor for OpenClaw-Style Agents](https://www.signalstack.news/blog/anthropic-restricts-claude-subscriptions-for-third-party-ai-agents/) ([markdown](https://www.signalstack.news/blog/anthropic-restricts-claude-subscriptions-for-third-party-ai-agents.md)): Claude Pro/Max vs OpenClaw-style harnesses—April 4 policy, commercial terms, API pricing, HN thread, GitHub context, Primary sources & mark… (Policy, 2026-04-05)
- [Google Unleashes Gemma 4: Apache 2.0 and the Open-Weight AI Landscape](https://www.signalstack.news/blog/google-unleashes-gemma-4-advanced-open-models-redefine-on-device-ai-with-apache-/) ([markdown](https://www.signalstack.news/blog/google-unleashes-gemma-4-advanced-open-models-redefine-on-device-ai-with-apache-.md)): DeepMind’s Gemma 4 family (E2B, E4B, 26B MoE, 31B dense) ships under Apache 2.0 with Gemini 3 lineage—what changed, why it matters for edge… (AI, 2026-04-03)
- [LinkedIn Extension Scanning Allegations: BrowserGate, EU Privacy, and Competitive Intelligence](https://www.signalstack.news/blog/linkedin-accused-of-covertly-scanning-user-browser-extensions/) ([markdown](https://www.signalstack.news/blog/linkedin-accused-of-covertly-scanning-user-browser-extensions.md)): Fairlinked’s BrowserGate investigation alleges client-side extension probing on linkedin.com—claims, GDPR (including special-category risk … (Security, 2026-04-03)
- [SpaceX Confidential IPO Filing: Valuation, Public Markets, and Policy Stakes](https://www.signalstack.news/blog/spacex-initiates-confidential-ipo-filing-poised-for-trillion-dollar-public-debut/) ([markdown](https://www.signalstack.news/blog/spacex-initiates-confidential-ipo-filing-poised-for-trillion-dollar-public-debut.md)): SpaceX’s confidential SEC filing and reported 2026 listing window—liquidity and governance, Starlink economics as valuation anchor, xAI/orb… (Policy, 2026-04-02)
- [Axios npm Incident: Phantom Dependency, RAT Dropper, and Supply-Chain Lessons](https://www.signalstack.news/blog/axios-npm-supply-chain-attack-deploys-sophisticated-remote-access-trojan/) ([markdown](https://www.signalstack.news/blog/axios-npm-supply-chain-attack-deploys-sophisticated-remote-access-trojan.md)): Malicious axios@1.14.1 and axios@0.30.4 on npm—phantom plain-crypto-js in tarballs, RAT/C2 on port 8000, OIDC vs manual publish signals, np… (Security, 2026-04-02)
- [Claude Code npm Leak: Source Maps, IP Risk, and the March 2026 npm Window](https://www.signalstack.news/blog/anthropics-claude-code-source-leaked-via-npm-map-file-exposing-core-ai-agent-arc/) ([markdown](https://www.signalstack.news/blog/anthropics-claude-code-source-leaked-via-npm-map-file-exposing-core-ai-agent-arc.md)): @anthropic-ai/claude-code v2.1.88 shipped a ~59.8 MB source map on npm—unobfuscated TypeScript reconstruction (~512k lines), packaging erro… (Security, 2026-04-01)

## Optional

- [Copilot, PRs, and Promo Text: Developer Trust vs. Platform Extraction](https://www.signalstack.news/blog/ai-copilot-inserts-promotional-content-into-developers-pull-request/): When GitHub Copilot appended Copilot and Raycast blurbs to a PR during a typo fix—trust boundaries,… (Policy)
- [Miasma: Trap Paths, Poison Data, and the Economics of AI Scraping](https://www.signalstack.news/blog/miasma-the-open-source-tool-trapping-ai-scrapers-in-an-endless-data-loop/): Rust trap-router Miasma—infinite crawl loops vs poison/gibberish sources, egress economics, aria/no… (Security)
- [The Silent RAM Drain: Web Bloat, Process Isolation, and Who Pays the Bill](https://www.signalstack.news/blog/the-silent-drain-how-web-based-applications-consume-your-pcs-memory/): User-reported ~2.4 GB for two LinkedIn tabs—WebView2/WhatsApp/Netflix desktop-web shift, Microsoft’… (Engineering)
- [GitLab Founder’s Health Journey, Open Data, and Parallel AI Disclosure Pressure](https://www.signalstack.news/blog/gitlab-founders-bold-battle-pioneering-new-ventures-against-cancer-amidst-ai-scr/): Sytse Sijbrandij on osteosarcoma, Evenone Ventures, and public datasets—alongside GitLab investor s… (Engineering)
- [macOS 26 Window Corners: Visual Drift, SIP Risk, and Third-Party Chrome Hacks](https://www.signalstack.news/blog/the-curious-case-of-macos-window-corners-inconsistency-and-user-hacks/): Uneven corner radii after macOS 26, SIP/SSV and Apple Silicon security posture, Library Validation … (Engineering)
- [Tesla Model 3 on a Desk: Salvage Bring-Up, Rosenberger Cables, and Security Research](https://www.signalstack.news/blog/hacker-revives-tesla-model-3-computer-on-a-desk-using-salvaged-parts/): Bench-mounting MCU, AP, and display from salvage—inrush vs bench supplies, thermal throttling off v… (Security)
- [LiteLLM on PyPI: Backdoored Builds, Secret Harvest, and .pth Persistence](https://www.signalstack.news/blog/litellm-pypi-packages-compromised-in-widespread-supply-chain-attack/): Reported malicious 1.82.7–1.82.8 on PyPI—import-time execution, credential theft, .pth-based interp… (Security)
- [OpenAI Winds Down Standalone Sora App: Portfolio Discipline and Compute Economics](https://www.signalstack.news/blog/openai-shuts-down-sora-video-app-amid-strategic-pivot-and-cost-reassessment/): Sora app sunset—inference cost per frame vs text, retention vs downloads, enterprise high-productiv… (Engineering)
- [Windows 11 ‘Fix’: Performance Reset, Ads, Copilot, and the Trust Deficit](https://www.signalstack.news/blog/microsofts-controversial-windows-11-fix-a-promise-of-redemption-amidst-criticism/): Microsoft’s repair-first narrative versus Copilot/ads friction—WinUI 3 and shell latency, TPM/CPU e… (Security)
- [37MB Page, ~500MB Later: Ad Tech, Web Bloat, and RSS as Exit Ramp](https://www.signalstack.news/blog/pc-gamer-recommends-rss-readers-in-a-37mb-article-that-just-keeps-downloading/): A text piece that recommends RSS while behaving like a bandwidth sink—initial payload, background f… (Tech Culture)
- [Tinybox & tinygrad (2026): Local FLOPS, Red/Green v2, and the Alpha Tradeoff](https://www.signalstack.news/blog/tinybox-unleashing-affordable-deep-learning-power-with-tinygrad/): Tinycorp Tinybox, tinygrad lazy graphs and kernel fusion, Red/Green v2 vs ROCm/NVIDIA stacks, air-g… (AI)
- [arXiv Leaves Cornell: Nonprofit Independence, Budget Pressure, and AI Slop](https://www.signalstack.news/blog/arxiv-declares-independence-from-cornell/): July 1, 2026 spin-out, Cornell vs global-public-good funding math, ~$6.7M ops & moderation surge (4… (Science)
- [Android Sideloading ‘Advanced Flow’: 24-Hour Delay, Verification, and Coercion Breaks](https://www.signalstack.news/blog/google-introduces-24-hour-wait-for-sideloading-unverified-android-apps/): Advanced Flow 24h delay as cooling-off vs scam urgency, verified vs unverified reputation lanes, Br… (Security)
- [OpenAI to Acquire Astral: uv, Ruff, ty, and the AI-Native SDLC Bet](https://www.signalstack.news/blog/astral-joins-openai-bolstering-ais-role-in-python-development/): Definitive agreement to fold Astral into Codex—open-source continuity, regulatory closing, and why … (AI)
- [OpenRocket: Simulation-First Model Rocketry, CG/CP, and Digital Iteration](https://www.signalstack.news/blog/openrocket/): Java-based design and flight simulation—stability signals, motor DB, exports, and why engineering-s… (Engineering)
- [Rob Pike’s Rules (1989): Measurement, Simplicity, and ‘Data Dominates’](https://www.signalstack.news/blog/rob-pikes-enduring-1989-rules-for-programming-simplicity-and-efficiency/): Five enduring rules—optimize after measurement, watch constant factors, prefer simple methods, and … (Engineering)
- [Xbox One ‘Bliss’: Voltage Glitching, Boot Trust, and Unpatchable Hardware Reality](https://www.signalstack.news/blog/xbox-ones-security-finally-cracked-after-years-of-unhackable-status/): Public Bliss-style break of long-standing Xbox One boot protections—privileged unsigned code, ROM-e… (Security)