Calls
2
Mayumi Negishi
Reporter, The Wall Street Journal
Win Rate
100.0%
return
+177.3%
Ticker
Side
Mentions
First Call
Call Price
P&L
Thesis
Theme
Source
Long
Jan 08
$327.02
+211.2%
Samsung's record quarter reflects AI-driven memory demand and conventional memory shortages, but Samsung has fallen behind SK Hynix and Micron in high-bandwidth memory and faces a make-or-break year to qualify HBM4 with Nvidia and close the gap; this keeps HBM leaders advantaged while Samsung is a watch item.
AI Memory
Long
Jan 08
$763000.00
+143.4%
Samsung's record quarter reflects AI-driven memory demand and conventional memory shortages, but Samsung has fallen behind SK Hynix and Micron in high-bandwidth memory and faces a make-or-break year to qualify HBM4 with Nvidia and close the gap; this keeps HBM leaders advantaged while Samsung is a watch item.
AI Memory
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Mayumi Negishi has 2 trade ideas tracked on Buzzberg across 2 tickers since January 2026. Most covered: MU, 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
