Semiconductors never betray you

‌Around September 2024, I asked one of my subordinates if they were investing in stocks.
When they replied, "SK Hynix," I asked why they chose Hynix,
and they said, "Semiconductors never betray you." At that time, Hynix was trading at around 140,000 KRW, so they started buying more.
Not long after that, they resigned.
She was a 34-year-old female employee, and she didn't do anything else except go all-in on stocks.
I wonder what she's doing and how she's living these days.
I wonder why she didn't recommend it to me.