Calls
18
#989
Alpha Score 2.3
Lee Yeok-jin
Deputy
Win Rate
11.1%
return
-22.9%
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Ticker
Side
Mentions
First Call
Call Price
P&L
Thesis
Theme
Source
Long
Jun 29
$323500.00
-21.2%
The memory semiconductor cycle is far from over and is entering a highly exciting phase. Samsung Electronics’ Q2 earnings could surprise near 100 trillion KRW (approx. double Micron on a currency-adjusted basis), making its valuation extremely attractive. Even if memory prices (P) eventually peak, volume (Q) expansion driven by HBM and AI demand will keep revenue and operating profit structurally higher, so a return to the old trough levels is very unlikely. The setup offers 2–3 years of upside potential with limited downside risk.
AI Memory
Long
Jul 10
$197300.00
-12.8%
The discount on Samsung Electronics preferred shares has widened to 30% versus the normal 10%, offering a mean-reversion opportunity as the gap eventually narrows back to historical levels.
AI Memory
Long
Jul 10
$983.14
-14.2%
Perplexity CEO predicts Micron's market cap could surpass Meta, implying Micron must rise 35%+ and driving massive upside for the AI memory supply chain.
AI Memory
Long
Jun 29
$152300.00
-26.2%
With oil prices declining and rate hike fears peaking, money will rotate into KOSDAQ biotech and 2nd batteries. The CSD policy will amplify this rotation. Alteogen, the largest KOSDAQ stock, will lead this move.
Critical Minerals
Long
Jun 29
$2594000.00
-29.0%
The memory semiconductor cycle is far from over and is entering a highly exciting phase. Samsung Electronics’ Q2 earnings could surprise near 100 trillion KRW (approx. double Micron on a currency-adjusted basis), making its valuation extremely attractive. Even if memory prices (P) eventually peak, volume (Q) expansion driven by HBM and AI demand will keep revenue and operating profit structurally higher, so a return to the old trough levels is very unlikely. The setup offers 2–3 years of upside potential with limited downside risk.
AI Memory
Long
Jun 29
$485000.00
-12.4%
Hyundai Motor and the broader KOSPI non-semiconductor large-cap group have been excessively sold off due to the black-hole effect of semiconductor single-stock leveraged ETFs. Hyundai Motor is now in a technical oversold condition, and valuations have retreated into the average band. With semiconductors pausing, non-semiconductor names have room to rebound. Hyundai Motor is a specific expression of this valuation and technical bounce play.
Autos & EV
Long
Jun 29
$24500.00
+11.4%
Cloud data center construction capex is set to rise sharply next year. Companies that build and operate data centers, such as GS Construction, are well-positioned to benefit from the edge data center trend, where existing logistics centers or vacant IT factories are being converted into data centers.
Construction & Infrastructure
Long
Jun 29
$175600.00
+0.1%
Falling oil is historically a strong inverse driver for biotech. US biotech ETFs (XBI, IBB) are already breaking out to new highs, while Korean biotech has been deeply oversold and is just beginning to recover. With oil heading lower, Korean biotech equities are poised for a significant catch-up rally, supported by attractive valuations, the KOSDAQ promotion policy, and sector themes like obesity and ADC (antibody-drug conjugates).
Pharma & Biotech
Long
Jun 29
$376000.00
-26.5%
Falling oil is historically a strong inverse driver for biotech. US biotech ETFs (XBI, IBB) are already breaking out to new highs, while Korean biotech has been deeply oversold and is just beginning to recover. With oil heading lower, Korean biotech equities are poised for a significant catch-up rally, supported by attractive valuations, the KOSDAQ promotion policy, and sector themes like obesity and ADC (antibody-drug conjugates).
Pharma & Biotech
Long
Jun 29
$1414000.00
-1.3%
Falling oil is historically a strong inverse driver for biotech. US biotech ETFs (XBI, IBB) are already breaking out to new highs, while Korean biotech has been deeply oversold and is just beginning to recover. With oil heading lower, Korean biotech equities are poised for a significant catch-up rally, supported by attractive valuations, the KOSDAQ promotion policy, and sector themes like obesity and ADC (antibody-drug conjugates).
Pharma & Biotech
Short
Jun 29
$105.48
-19.0%
Crude oil prices will continue to decline. The real economy is weak, and Europe is experiencing a record heatwave that will sharply reduce heating demand. Additionally, if Iranian crude starts flowing, oil could fall further, potentially creating a Goldilocks environment. Oil is already declining, and the 70-dollar level should break to the downside.
Commodities
Long
Jun 29
$155.38
-0.8%
Falling oil is historically a strong inverse driver for biotech. US biotech ETFs (XBI, IBB) are already breaking out to new highs, while Korean biotech has been deeply oversold and is just beginning to recover. With oil heading lower, Korean biotech equities are poised for a significant catch-up rally, supported by attractive valuations, the KOSDAQ promotion policy, and sector themes like obesity and ADC (antibody-drug conjugates).
Thematic ETFs
Long
Jun 22
$1941000.00
-37.6%
SK Square, the holding company of SK Hynix, offers superior upside compared to direct SK Hynix because of its persistent NAV discount, the upcoming SK Hynix ADR listing and potential massive shareholder returns, and SK Square's own 20% share cancellation plan. The passive fund buying constraint on SK Hynix will push money into SK Square, creating alpha.
Capital Markets
Long
Jun 22
$29295.00
-17.1%
The Korean semiconductor equipment and materials sector (소부장) will continue to outperform because the multi-year capex upcycle from Samsung, SK Hynix, and TSMC is accelerating from 3Q onward, and the KOSDAQ premium league reform will direct institutional flows specifically toward profitable equipment names, sustaining the sector's momentum.
Thematic ETFs
Long
Jun 01
$2043000.00
-37.5%
FCBGA substrates are in severe shortage, with Samsung Electro-Mechanics and LG Innotek benefiting from multi-year demand. Supply will not ease until late next year, driving earnings upgrades.
AI Hardware
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Lee Yeok-jin has 18 trade ideas tracked on Buzzberg across 18 tickers since June 2026. Win rate 11% across 18 evaluated calls, average return -22.9%. Ranked #989 on the Buzzberg Alpha leaderboard. Most covered: 005930.KS, BNO, XBI.
