Article published Jul 18, 2026. Prices below use latest available snapshots.
note · self
The two-week slide in AI hardware has a tidy explanation making the rounds: midterm-election nerves, a summer lull, everything drifts until November. The July 17 close says otherwise. This correction is surgical, and Friday printed the first bars that look like a turn starting — not yet a turn.
The damage is sectoral, not seasonal.
If elections were the driver, the damage would be everywhere. It isn't:
| Corner of the tape | 30-day | From 52-wk high | RSI | NOTE |
|---|---|---|---|---|
| S&P 500 (SPY) | −0.5% | −2.3% | 49 | intact — one ordinary red week |
| Equal-weight (RSP) | +2.0% | −1.4% | 55 | breadth is rising |
| Small caps (IWM) | −0.5% | −2.9% | 50 | fine |
| Value (VTV) | +1.2% | −1.9% | 55 | fine |
| Biotech (XBI) | +9.7% | −6.9% | 55 | a rotation winner |
| Semis (SMH) | −15.7% | −17.2% | 41 | bear market in one sector |
| Momentum factor (MTUM) | −10.8% | −12.6% | 41 | the unwind |
| Memory (MU/STX/WDC/SNDK) | −25% to −38% | −31% to −42% | 39–42 | the epicenter |
A market pricing election paralysis damages breadth broadly. A market re-rating one trade damages that trade. This is the second thing: a sector derate plus a momentum unwind, with the rest of the tape calmly rotating into value, small caps, and biotech. The midterm-cycle rhythm — chop into the vote, relief after — stays on the board as a low-confidence timing overlay for where a Q3 bottom could sit, but it is not what's selling semis.
Friday's tell: the first dispersion inside the complex.
Through Thursday the complex fell as one block. Friday it stopped agreeing with itself:
| Name | Friday | NOTE |
|---|---|---|
| STX | +5.7% on 1.35× volume | touched $700.39, closed $787.66 — a reversal bar |
| WDC | +2.2% | reversal shape |
| ARM | +2.0% | bounce after −39% in 30 days |
| MRVL | +0.2% | stopped falling |
| NVDA | −2.2% | the leaders still fell |
| TSM | −2.8% | still falling |
| AMAT | −5.6% | still falling |
| SNDK | −4.0% | still a knife (−29% on the week) |
That pattern — the most-damaged names reversing intraday on volume while the leaders keep bleeding — is what the start of a bottoming process looks like. It is not a base. Weekly rates of change are still falling-knife (SNDK −29%, MRVL −20%, WDC −18%), and one green bar reverses nothing by itself.
The turn signature.
What would convert "settling" into "setting up," in checkable terms:
- The reversal bars hold. STX above $700.39 and MU above $804 on any retest — a higher low is the first fact a bottom produces.
- The general turns. NVDA never broke (−3.7% in 30 days against the ETF's −15.7%); a close back above its 50-day ($209.81) is the complex-repair signal. A close below its $186.48 volume shelf is the opposite — the last leader falling.
- The ETF reclaims its averages. SMH through $597 (50-day), confirmed through $611 (20-day). Below Friday's $536.81 low, the next leg down is open.
- The calendar resolves the legs. The derate has three legs, and each has a date: Alphabet's capex language Wednesday July 22 (the financing leg); the K3 open-weights release July 27 and the variant wave after it (the margin-scare leg); the storage prints July 28–29 with Meta and Microsoft July 29, then SanDisk August 5 (the demand-confirmation leg).
Nothing below is a buy today. These are tripwires, armed so the turn gets caught the day it happens instead of the week after.
Desk calls.
| Call | Stance | Trigger above | Invalidation below | Review by |
|---|---|---|---|---|
| SMH | watch | $597.33 (50-day reclaim) | $536.81 (Friday low) | Aug 14 |
| NVDA | watch | $209.81 (50-day reclaim) | $186.48 (volume shelf) | Aug 14 |
| MU | watch | $903.93 (reversal-bar high) | $804.00 (reversal-bar low) | Aug 14 |
| STX | watch | $808.65 (reversal-bar high) | $700.39 (reversal-bar low) | Aug 14 |
Tape: desk summaries and daily bars, July 17 close. The derate's three legs: the July 18 market brief.