Calls
31
#1979
Alpha Score 3.5
So Hyeon-cheol
Adjunct Professor, Sangji University
Win Rate
45.2%
return
-5.5%
Ticker
Side
Mentions
First Call
Call Price
P&L
Thesis
Theme
Source
Long
Sep 09
$366.67
-0.7%
Tesla's Cybercab/robotaxi is a very large competitive development with no traditional controls and a striking design. This will make existing global automakers struggle and gives Tesla a strong edge.
Autos & EV
Long
Sep 09
$1001.20
+1.4%
Nvidia's latest Blackwell/Astra accelerator carries 192GB of HBM, up 30% from H200, and the next Vera Rubin generation will carry 288GB of HBM4, up 50%. This structurally raises HBM content per accelerator and benefits HBM suppliers Samsung, SK hynix, and Micron.
AI Memory
Long
Sep 09
$614.36
+8.9%
The market is overpricing US hyperscaler rollover financing fears. On-balance-sheet debt is about $550 billion and off-balance-sheet obligations are about $2.4 trillion, roughly $3 trillion total, but hyperscaler annual revenue is $1.85 trillion to $2 trillion and EBITDA is $600 billion to $700 billion, so the debt can be resolved in three to four years just by suspending buybacks and shareholder returns. Therefore the August long-term Treasury yield spike overpunished Google and Meta.
Hyperscalers
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So Hyeon-cheol has 31 trade ideas tracked on Buzzberg across 31 tickers since January 2026. Win rate 45% across 31 evaluated calls, average return -5.5%. Ranked #1979 on the Buzzberg Alpha leaderboard. Most covered: 005930.KS, EWY, 000660.KS.
Historical call returns are modeled from recorded ideas and stored prices, not actual brokerage portfolio returns. Check the evaluated call set and horizon; past results do not establish future prediction accuracy. Explore our data and methodology
