The PHLX Semiconductor Index is up more than 65% year-to-date heading into mid-June 2026, and NVIDIA is still the engine. This is the third straight winning year for chips — and the part everyone whispers about is the one I'm watching closest.
| Metric | Value |
|---|---|
| SOX index YTD | +65% |
| NVDA early-2026 gain | ~4% |
| Trade driver | AI capex |
| Bear-case downside | 25-30% |
| Comparison cited | 1999-2000 |
Why it moved
The whole leg runs on one number: AI infrastructure spend. Hyperscaler capex keeps ratcheting up, and every dollar of it flows through accelerators, memory and the picks-and-shovels names like ASML. NVIDIA dominates the accelerator market, so it gets the lion's share of the flow and sets the tone for the group. That's why semis led the June 15 risk-on tape alongside the broader Nasdaq. Ruslan Averin's framing: this is a real earnings cycle, not air — the cash is being spent and the chips are being shipped.
What it means for you
But veterans are flagging 1999-2000 parallels and warning of 25-30% drawdowns. Both can be true at once: the trend is genuine and the valuation is stretched. I size semis as a core position I'm willing to trim into vertical weeks, not chase on a green Monday.
Bottom line: I own the AI-capex trade, but I keep dry powder for the correction every great trend eventually hands you.