Calls
32
#1087
Alpha Score 4.9
Cha Young-joo
Director, Wise Economic Research Institute
Win Rate
31.2%
return
-8.0%
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Ticker
Side
Mentions
First Call
Call Price
P&L
Thesis
Theme
Source
Long
May 13
$284750.00
-15.9%
Samsung Electronics and SK hynix are the leading stocks driven by strong earnings, low valuation (PER ~7x for Samsung), and reflexive buying momentum. They should be held through volatility and not sold, as the AI momentum and fundamental improvements remain intact. Any short-term correction presents a buying opportunity for those not yet invested, and investors should rotate out of non-leading positions to increase exposure to these names.
AI Memory
Long
May 13
$1985000.00
-28.2%
Samsung Electronics and SK hynix are the leading stocks driven by strong earnings, low valuation (PER ~7x for Samsung), and reflexive buying momentum. They should be held through volatility and not sold, as the AI momentum and fundamental improvements remain intact. Any short-term correction presents a buying opportunity for those not yet invested, and investors should rotate out of non-leading positions to increase exposure to these names.
AI Memory
Long
Jun 26
$148100.00
+12.5%
KB Financial Group's Q2 preview shows strong growth with net profit up 13% YoY, driven by higher interest and non-interest income. The securities subsidiary is benefiting from an average daily trading value surge to 90 trillion won. Despite the stock price having pulled back significantly, earnings momentum remains robust, making it attractive at current levels.
Banks
Long
Jun 12
$532000.00
-13.6%
Secondary battery stocks are seeing earnings improvement and will rotate into favor as the market shifts from expectation-driven to earnings-driven plays ahead of the July pre-earnings season. Samsung SDI is leading this move and could outperform biotech as an earnings play.
Batteries & Storage
Long
May 27
$236500.00
-23.2%
Use mental accounting to allocate only profit money (not principal) to buy laggard large-cap tech stocks such as Samsung Electro-Mechanics, LG Innotek, and LG Electronics. These stocks have not risen as much but have potential to catch up. Apply strict stop-losses and treat this as an aggressive tactical position.
AI Hardware
Long
May 18
$251500.00
-19.3%
LS Electric's recent announcement of a 1,050 billion won power equipment supply contract for US AI data centers confirms its competitiveness and the long-term demand from AI infrastructure buildout. The stock had corrected earlier but is now poised to re-accelerate. Power infrastructure is a core beneficiary of the AI theme alongside semiconductors.
Grid Equipment
Long
Jul 23
$430500.00
-6.4%
Hyundai Motor is transitioning from a neutral to a positive setup. Despite a sharp 20% decline in operating profit due to tariffs and costs, the stock held the 400k KRW level, indicating that investors are now pricing it as a robot company rather than a pure automaker. The market is valuing the robotics and SDV (software-defined vehicle) transformation story.
Autos & EV
Long
Jul 02
$28800.00
-6.8%
Foreigners bought KB Financial, Korean Air, Amorepacific, and HYBE during the market crash because of strong Q2 earnings previews (interest income, cost cuts, export data). These earnings-driven stocks will lead the market.
Airlines
Long
Jul 02
$120500.00
+12.7%
Foreigners bought KB Financial, Korean Air, Amorepacific, and HYBE during the market crash because of strong Q2 earnings previews (interest income, cost cuts, export data). These earnings-driven stocks will lead the market.
Personal Care
Long
Jun 26
$733000.00
+4.0%
LIG Nex1 recently announced a rights offering to fund factory expansion, which will drive future sales growth. While rights offerings typically pressure share prices short-term, the medium-term outlook is positive as the new capacity meets strong defense demand. The stock held up well despite the news, signaling underlying support.
Defense
Long
Jun 10
$179.83
-6.6%
Money that flows out as margin deposits for the SpaceX IPO will flow back into the market once the listing is complete. Institutions must hold SpaceX for index-linked futures trading, so recycling of capital will support US IT stocks and the KOSPI.
Equity Indexes
Long
May 18
$259000.00
-29.0%
Sanil Electric is part of the power infrastructure theme benefiting from AI data center and electrification demand. The sector corrected earlier but is now showing signs of recovery; investors should hold or add these names on weakness alongside other power equipment stocks.
Grid Equipment
Long
Aug 05
$217.93
+0.1%
AI-related stocks must be bought. Nvidia is particularly strong because it not only leads in AI chips but is also expanding into biotech, logistics (Cosmos), and other areas, preparing the next growth engines while it is already doing extremely well.
AI Compute
Long
Aug 05
$1555.00
-1.2%
Transformer and heavy-electrical companies, led by Hyosung Heavy Industries, have accumulated order backlogs exceeding 10 trillion won that are now converting into earnings, while still more new orders are stacking up. This creates a strong fundamental setup similar to the shipbuilding turnaround.
Other
Long
Aug 05
$161.56
+7.4%
Palantir's recent earnings were extremely strong, proving that AI data-service companies can generate enormous profits. Unlike Meta, which must borrow to invest, Palantir acts as a data intermediary and is already delivering big earnings, showing that the AI application layer is a real, profitable business.
AI Software
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Cha Young-joo has 32 trade ideas tracked on Buzzberg across 32 tickers since May 2026. Win rate 31% across 32 evaluated calls, average return -8.0%. Ranked #1087 on the Buzzberg Alpha leaderboard. Most covered: 005930.KS, 000660.KS, 006400.KS.
