Financial market analysis, algorithmic trading development, and engineering notes.
KOSPI and KOSDAQ rebounded yesterday, but foreign investors remained net sellers on KOSPI for two consecutive sessions and were net sellers of KOSPI200 futures, leaving the quality of the rebound subject to further confirmation.
Deep dive into Berkshire Hathaway's investment in Alphabet (Google). Analyzes 30 US & Korean firms against Buffett's 20%+ ROIC benchmark.
Analysis of HANARO Fn K-Semiconductor ETF (395270.KS) post +146% YTD surge and -37.8% drawdown. Highlights technical MAs (120 MA 49,701 KRW) and staged entry guidance.
In-depth analysis of Gaon Cable following its +306% YTD rally. Evaluates 2025 OP (+76.0%), PER 60.8x valuation multiples, and 202.5% debt ratio risks with tactical wait guidance.
In-depth strategy report on XOM amid Hormuz blockade and Jul 26 truce talks pause. Expected return at +1.9% yields poor odds—Tactical Wait recommended for $130-140 pullbacks.
On July 23, KOSPI rose 4.40% driven by foreign spot buying and semiconductor strength, but foreign investors net sold 2,289 contracts of KOSPI200 futures. US index futures weakness and oil/Middle East risks remain volatility factors.
While performing the JYP stock analysis process, I discovered a persistent 'Broken pipe' error when calling domestic chart tools and traced the cause. Initially, I thought it was a communication error with the Toss API or the chart data itself, but upon precise diagnosis of the internal sandbox process, the cause was completely different. Recently...
On July 22, KOSPI rose 0.74% while KOSDAQ fell 0.30%. Foreign investors net bought 2.6 trillion KRW in KOSPI spot, but net sold 248 contracts in K200 futures, requiring confirmation of rebound sustainability.
JYP Entertainment achieved record-high revenue in 2025, but its stock price is adjusting due to deepening reliance on veteran artists and declining profitability. While it is attractively undervalued at a Forward P/E of 12.2x (historical rock bottom), the performance of Stray Kids' H2 comeback and world tour will be the turning point for a rebound.
KOSPI closes at 6,856 with institutions and foreigners both turning to net buyers. SK Hynix ADR surges 27% as market shows signs of rebound after steep decline.
South Korean market collapses as Trump's Iran strikes and Hormuz toll declaration trigger massive foreign and institutional selling, with SK Hynix leading the downturn.
SK Hynix's impressive ADR debut sparks renewed semiconductor sector optimism as investors await key events this week.
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