I’m 70% into SK Hynix and need a serious reality check. Roast my thesis.
Yeah, I know. Keeping 70% of a portfolio in a single, highly cyclical semiconductor stock is more for WSB. But looking at the numbers right now, it’s incredibly hard for me not to buy more. I’m clearly wearing rose-colored glasses because of the price action, so I need you guys to poke some serious holes in this before I do something stupid.
Why I think it’s still a ridiculous buy:
They completely own the high-end AI memory space: They have a massive lead over Samsung and Micron in HBM3E, and they just became the first to ship 12-layer HBM4E samples to Nvidia for the upcoming Rubin chips. Samsung is still struggling heavily with their internal production yields.
The valuation makes no sense: Thanks to the "Korea Discount," the stock is trading at a forward P/E of roughly 8. For a company growing its operating profit by \\\~60% quarter-over-quarter, this feels like a deep value play hiding inside an AI supercycle. Domestic brokers are whispering about a 61 trillion Won operating profit for Q2.
The NASDAQ listing catalyst: The ADR listing in August is going to unlock massive passive and active inflows from US institutional funds and tech ETFs (like SOXX) that legally can’t buy directly on the Korean exchange right now. Plus, we finally get liquid option chains.
The legacy DRAM shortage: Everyone is gutting their normal computer/server memory capex to build expensive HBM lines instead. When standard DRAM runs into a supply deficit later this year, Hynix is going to mint money on non-AI chips too.
Now give me the ugly stuff. Here is the bear case I’m trying to ignore:
- The "multi-year contract" cope
Everyone points to "non-cancelable contracts" as a shield against the next cyclical bust. But in the chip sector, a contract is only non-cancelable until Big Tech panics. Hyperscalers (Meta, Microsoft, Google) always double-order out of fear during a shortage. The second end-user AI monetization slows down, they will find legal loopholes to delay deliveries. Volume might stay, but pricing power will drop like a stone.
Counter: HBM4E isn’t commoditized DRAM; it is structurally co-designed straight into Nvidia’s architecture. Big Tech can’t just turn around and cancel their order to buy a cheaper alternative mid-generation without messing up their entire hardware deployment timeline.
- The TSMC bottleneck
Hynix can build all the next-gen fabs they want, but HBM4E chips are expensive paperweights without TSMC’s advanced CoWoS packaging. TSMC is at absolute maximum capacity. If Taiwan hits any geopolitical bump or a bad earthquake, Hynix’s inventory just rots unsold in a warehouse. That 2.5% NASDAQ dilution to fund more capacity won't mean shit if the chips can't actually ship.
Counter: They are actively trying to bypass this single point of failure. They recently broke ground on their own $4B advanced packaging hub in Indiana,
- The chart is screaming overbought
The stock is up over 800% and the weekly/monthly RSI is melting through the ceiling. When Nvidia eventually takes a breather or the macro environment flips, algos are going to dump mega-cap tech ruthlessly. Local liquidity in Seoul can evaporate in minutes, and a forward P/E of 8 won't stop a sudden 20-30% drawdown.
Counter: The chart looks parabolic, but the underlying earnings estimates are actually rising faster than the stock price. That’s why the forward P/E is stuck at a compressed 8x.
- Operational single-point-of-failure
To meet Nvidia's demand, these fabs are running at 100% capacity around the clock. Their margin for error is zero. We’ve already seen minor chemical leaks and factory scares recently. A