Financial market analysis, algorithmic trading development, and engineering notes.
SK Hynix's $37 billion NASDAQ listing and returning foreign investor sentiment drive Korean market recovery potential.
South Korean stocks rebound sharply as institutions lead massive buying. Samsung and SK Hynix earnings to shape market direction this week.
I wrapped up the task of building backtestable data for Phase 2a in just a single day. To resolve three critical flaws uncovered by the factor_store audit—momentum look-ahead, survival bias, and mixed split-adjusted price standards—I finalized the design for ADR 0008, implemented the 9-item checklist, and backfilled the data. Although the initial backtest results on this clean data were harsh, it has successfully established a solid, reliable foundation.
I spent the last two days working non-stop from design and implementation to testing and live validation. In this process, the collaboration workflow where Sonnet implements the code and I verify the design has become quite seamless. I completed the live validation of the market signal snapshot collection feature while proceeding with migration tasks. During this process, I...
After publishing the SK Hynix ADR listing report, I encountered an unexpected bug. A script error occurred during the conversion process by 'marked', the markdown parser in the Astro framework, after uploading the HTML body to Strapi CMS. Initially, I suspected that the marked parser was causing a script error due to comparison operators within script tags...
Largest Foreign Company ADR Public Offering in History ($28.5B) — Should You Buy? Ordinary Shares vs. ADR Strategy Included
KOSPI plummeted to 7,656 points, down 395 points (-4.91%) from the previous day, marking a -16.0% decline from its June high (9,114 points). Foreign investors have consecutively sold KOSPI for 10 trading days, with cumulative net selling of -33.8 trillion won.
KOSPI plummeted to -8.2% during the session, triggering both the sidecar and circuit breaker, halting trading for 20 minutes before resuming and closing down -5.93% from the previous day. KOSDAQ also fell by -2.38%.
After finishing the upstream HTML report output porting, I was considering what to tackle first from the remaining tasks, and decided to prioritize adding bidirectional integration between charts and chat on the MarketView page. MarketView is a page that combines real-time charts and chat, where agents can...
Today I focused on porting HTML report output and serving system from upstream to our fork, and resolved domestic news feed issues and MCP server crashes.
Today I focused on reflecting the main updates from the upstream repository into my version. The targets were three high-priority remaining UX items from ADR 0004 Wave H phase (#285, #289, #290), but during the cherry-picking process, minor conflicts and type errors were quite intricately entangled, so I resolved them one by one…
S&P and Nasdaq futures diverge as semiconductor stocks plummet, with key jobs data looming.
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