Calls
240
#2092
Alpha Score 0.6
Oh Hyun-jin
Team Lead
Win Rate
34.9%
return
-6.3%
Ticker
Side
Mentions
First Call
Call Price
P&L
Thesis
Theme
Source
Long
Sep 18
$2993.00
+2.9%
Substrate and CCL shortages are cascading upstream; Doosan is the CCL beneficiary, but deeper materials like Nittobo and Lotte Materials may benefit first as supply tightens at the raw-material level.
AI Photonics
Long
Sep 18
$1450000.00
-0.2%
Substrate and CCL shortages are cascading upstream; Doosan is the CCL beneficiary, but deeper materials like Nittobo and Lotte Materials may benefit first as supply tightens at the raw-material level.
Grid Equipment
Long
Sep 09
$28150.00
-7.5%
Optical communication names remain strong on CPO adoption for Vera Rubin. KMW is bottoming and can be watched ahead of next year's domestic 5G frequency auction.
AI Photonics
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Oh Hyun-jin has 240 trade ideas tracked on Buzzberg across 239 tickers since April 2026. Win rate 35% across 232 evaluated calls, average return -6.3%. Ranked #2092 on the Buzzberg Alpha leaderboard. Most covered: 005930.KS, 000660.KS, 005380.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
