Calls
27
#1249
Alpha Score 2.1
Lee Yeok-jin
Deputy
Win Rate
29.6%
return
-14.7%
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Ticker
Side
Mentions
First Call
Call Price
P&L
Thesis
Theme
Source
Long
Jun 29
$485000.00
-22.1%
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
$323500.00
-22.6%
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
Aug 31
$10.54
+2.7%
Power generation is now more important than power equipment. Data-center-heavy US states need to roughly double generation capacity, so the buildout will favor short-term solar, medium-term natural gas, and long-term nuclear/SMR.
Commodities
Long
Aug 31
$45.38
-2.0%
Power generation is now more important than power equipment. Data-center-heavy US states need to roughly double generation capacity, so the buildout will favor short-term solar, medium-term natural gas, and long-term nuclear/SMR.
Thematic ETFs
Long
Aug 14
$64.20
-2.3%
CME is launching a computing futures index on October 5th based on data center lease rates. This will allow data center builders to hedge price risks, leading to massive capex expansion, similar to how oil futures spurred drilling. This financialization removes doubts about AI capex sustainability.
Thematic ETFs
Long
Aug 14
$265.00
-3.5%
Despite concerns about hyperscalers' free cash flow (FCF) dropping due to massive capex, their operating cash flow (OCF) is growing at 40% YoY. Similar to YouTube's early days, massive upfront investment is necessary to secure platform dominance and will lead to highly profitable margins later, justifying continued AI infrastructure spending.
Hyperscalers
Long
Aug 14
$346.40
-2.4%
Despite concerns about hyperscalers' free cash flow (FCF) dropping due to massive capex, their operating cash flow (OCF) is growing at 40% YoY. Similar to YouTube's early days, massive upfront investment is necessary to secure platform dominance and will lead to highly profitable margins later, justifying continued AI infrastructure spending.
Hyperscalers
Long
Aug 14
$495.79
+0.5%
Despite concerns about hyperscalers' free cash flow (FCF) dropping due to massive capex, their operating cash flow (OCF) is growing at 40% YoY. Similar to YouTube's early days, massive upfront investment is necessary to secure platform dominance and will lead to highly profitable margins later, justifying continued AI infrastructure spending.
Hyperscalers
Long
Aug 14
$155.80
-6.4%
Despite concerns about hyperscalers' free cash flow (FCF) dropping due to massive capex, their operating cash flow (OCF) is growing at 40% YoY. Similar to YouTube's early days, massive upfront investment is necessary to secure platform dominance and will lead to highly profitable margins later, justifying continued AI infrastructure spending.
Hyperscalers
Long
Aug 03
$535000.00
+1.9%
As the market normalizes, foreign investors will fill their underweight positions in stocks they heavily sold: Samsung Electronics, SK Square, Hyundai Motor, PharmaResearch. These are attractive bargain buys.
Capital Markets
Long
Aug 03
$380000.00
+3.3%
As the market normalizes, foreign investors will fill their underweight positions in stocks they heavily sold: Samsung Electronics, SK Square, Hyundai Motor, PharmaResearch. These are attractive bargain buys.
Pharma & Biotech
Long
Jul 10
$197300.00
-6.0%
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
-3.1%
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
-29.1%
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
-37.8%
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
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Lee Yeok-jin has 27 trade ideas tracked on Buzzberg across 27 tickers since June 2026. Win rate 30% across 27 evaluated calls, average return -14.7%. Ranked #1249 on the Buzzberg Alpha leaderboard. Most covered: 005930.KS, 005380.KS, KOSDAQ INDEX.
