Buzzberg Cup Bracket locked
#318 Alpha Score 62.7

Cha Young-joo

Director, Wise Economic Research Institute
· tracked since May 2026
318
BUZZBERG Alpha Score combines three things: realized average return, confidence in the sample size, idea volume, and speaker reputation. Speakers with only a few calls are pulled closer to the platform average; speakers with many evaluated ideas keep more of their own return. Reputation only boosts: 5.0 or lower is neutral, while scores above 5 add weight. Scores are normalized to 0-100; 100 is best. Read the FAQ
Alpha Score 62.7
Calls
14
Win Rate
57.1%
Return
+1.7%
Calls 14 13 Posts tracked · 0.3/day
Calls
7d 4
30d 7
90d 14
Best Calls
000660.KS long +34.7%
009150.KS long +20.2%
005930.KS long +19.2%
Worst Calls
010120.KS long -19.3%
066570.KS long -17.2%
062040.KS long -17.0%
Most Mentioned
Recent Calls
079550.KS long 2 days ago
207940.KS long 2 days ago
105560.KS long 2 days ago
Win Rate 57% Long 14 Short 0
Win Rate
7d 80%
30d 57%
90d
Average Return +1.7% Long Return +1.7% Short Return -
Average Return
7d +12.1%
30d +2.7%
90d
Result
Result
Sort
Theme Stance
Ticker
Side
Mentions
Opened
Entry
P&L
Thesis
Theme
Source
Long
May 13
$284750.00
+19.2%
Hold Samsung and SK hynix through volatility.
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/Semi
Long
May 13
$1985000.00
+34.7%
Hold Samsung and SK hynix through volatility.
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/Semi
Long
May 18
$251500.00
-19.3%
LS Electric benefits from AI power demand.
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.
Energy
Long
Jun 26
$733000.00
+0.3%
LIG Nex1 capex expansion positive medium-term
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.
NatSec
Long
Jun 26
$148100.00
+0.8%
KB Financial strong earnings, valuation attractive
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.
Fintech
Long
Jun 12
$532000.00
-14.5%
Samsung SDI leads earnings-driven 2차전지 rally.
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.
Energy
Long
May 18
$259000.00
-17.0%
Sanil Electric is a power infrastructure play.
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.
Energy
Long
Jun 26
$1335000.00
+0.6%
Samsung Biologics chart turning bullish
Samsung Biologics and a few other biotech names are showing chart patterns of bottoming and early trend reversal. This coincides with the earnings season and could mark the start of a recovery. Positive chart signals give a tactical reason to expect upside in Samsung Biologics.
Healthcare
Long
Jun 24
$314500.00
-2.5%
Interest income growth drives securities stocks.
Kiwoom Securities and other Korean securities firms are set to benefit from growing interest income. Customer deposits of 130 trillion KRW and credit loans of around 36-37 trillion KRW generate interest with minimal payout to clients. Leveraged ETF products and increased trading fees further boost revenue. Despite recent market corrections, earnings growth is expected, and the sector offers an attractive investment opportunity.
Fintech
Long
Jun 10
$179.83
+10.0%
KOSPI hits 10,000 on earnings surge.
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.
Macro
Long
Jun 10
$642.55
+14.8%
Cosmetics export plays strong, buy.
Cosmetics stocks are doing well as export plays; they benefit from favorable currency effects and rising overseas demand, and will likely see positioning ahead of 2Q earnings.
Macro
Long
May 27
$1658000.00
+20.2%
Buy laggard tech stocks with profit money.
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/Semi
Long
May 27
$236500.00
-17.2%
Buy laggard tech stocks with profit money.
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.
Consumer
Long
May 13
$196.20
-5.8%
Hold power infrastructure for AI tailwinds.
The power infrastructure sector should not be sold despite short-term volatility. It is a core beneficiary of AI capex and will rebound after the correction. Investors should maintain positions or even add on dips, rotating from weaker sectors.
Energy
Showing 14 of 14 picks · sorted by mentions

Cha Young-joo has 14 trade ideas tracked on Buzzberg across 14 tickers since May 2026. Ranked #318 on the Buzzberg Alpha leaderboard. Most covered: 005930.KS, 000660.KS, 010120.KS.