The epicentre is memory
The unwind that started in memory has broadened into a full sector rotation. Every major semiconductor name bar Nvidia and Broadcom is lower over four weeks, and the losses at the front of the pack are the kind normally reserved for single-stock accidents rather than an entire sub-sector.
SK Hynix — the global memory bellwether and SanDisk’s chief competitor in NAND — fell 9.0% on its US line on Wednesday and 24.3% across the week; the Seoul listing is 46.7% lower over a month. SanDisk has fallen 47.6% and Micron 27.5%. The read-across into capital equipment has been immediate: Lam Research, Applied Materials and KLA are down 23–29% on the month, consistent with the market pricing a sharp cut to memory capex plans.
Two things stand out against that. First, the foundry and analog names have held far better — TSMC is off just 9.3% and Texas Instruments 2.9%. Second, Broadcom is actually higher on the month and Nvidia is unchanged. The market is not selling AI compute; it is selling the memory and equipment supply chain that had run furthest ahead of it.
| Ticker | Name | Last | 1 Day | 1 Week | 1 Month | 1 Year |
|---|---|---|---|---|---|---|
| SKHY | SK Hynix ADR‡ | $130.17 | −8.98% | −24.29% | — | — |
| SNDK | SanDisk | $1,096 | −14.25% | −31.04% | −47.57% | +2,480% |
| MRVL | Marvell | $174.47 | −7.77% | −16.10% | −34.60% | +136% |
| INTC | Intel | $86.30 | −5.86% | −18.16% | −34.48% | +324% |
| IFX.DE | Infineon (€) | €56.51† | −2.18% | −19.04% | −29.37% | +65% |
| LRCX | Lam Research | $269.61 | −7.54% | −16.27% | −28.88% | +179% |
| MU | Micron | $820.53 | −8.85% | −15.48% | −27.54% | +648% |
| AMAT | Applied Materials | $476.46 | −7.82% | −15.60% | −23.99% | +158% |
| KLAC | KLA Corp. | $190.80 | −6.18% | −12.30% | −23.26% | +113% |
| WDC | Western Digital | $463.51 | −6.91% | −15.48% | −20.96% | +575% |
| STX | Seagate | $747.30 | −8.53% | −16.21% | −16.96% | +398% |
| AMD | Adv. Micro Devices | $454.62 | −8.15% | −17.69% | −14.64% | +180% |
| QCOM | Qualcomm | $162.88 | −4.21% | −6.12% | −14.00% | +5% |
| ASML | ASML Holding | $1,583 | −4.24% | −12.13% | −11.79% | +124% |
| TSM | TSMC | $392.31 | −1.70% | −7.61% | −9.26% | +61% |
| TXN | Texas Instruments | $277.07 | −0.84% | −4.88% | −2.93% | +53% |
| NVDA | Nvidia | $197.01 | +0.00% | −4.75% | +0.04% | +13% |
| AVGO | Broadcom | $380.91 | −0.60% | −1.45% | +4.35% | +32% |
On twelve months, almost nothing has broken
On a twelve-month view none of this has broken the trend. SanDisk remains up 2,480%, Micron 648%, Western Digital 575% and SK Hynix’s Seoul line 371%. These are violent unwinds inside parabolic year-long moves, and the biggest year-long winners have generally given back the most — though not without exception. AMD is up 180% on the year and down only 14.6% on the month, while Qualcomm gained just 5% over twelve months and still fell 14%.
Megacap technology has not received the memo
If the chip complex is unwinding, large-cap technology has not followed. The one-month table splits almost evenly, and the leaders are not defensive names — Apple is up 8.8% and Meta 7.8%, with Palantir +6.8% and Microsoft +5.5%. Apple is the only name in either table higher on both the week and the month.
The weakness is concentrated and idiosyncratic rather than sector-wide. Tesla is down 26.9% over four weeks and 17.8% in the past week alone, and Oracle — the most aggressive AI-infrastructure spender among the megacaps — has fallen 18.8% on the month and 51% over twelve. That pairing matters: Oracle’s decline rhymes with the memory and equipment selling far more than it does with anything happening at Apple or Meta.
The twelve-month column is the more sobering read. Netflix −39%, Microsoft −23%, Palantir −22%, Meta −17% and Oracle −51% are all lower on the year — a reminder that megacap tech has been de-rating for most of 2026 while the semiconductor complex was doubling and tripling. What is happening now looks less like contagion from chips into tech, and more like the two finally converging.
| Ticker | Name | Last | 1 Day | 1 Week | 1 Month | 1 Year |
|---|---|---|---|---|---|---|
| AAPL | Apple | $340.08 | — | +5.73% | +8.77% | +45% |
| META | Meta Platforms | $593.41 | −0.08% | −7.83% | +7.84% | −17% |
| PLTR | Palantir | $123.53 | −6.08% | −6.88% | +6.77% | −22% |
| MSFT | Microsoft | $393.35 | +1.09% | −1.11% | +5.46% | −23% |
| AMZN | Amazon | $230.86 | −0.23% | −6.74% | −0.79% | −0% |
| GOOGL | Alphabet | $333.71 | +2.19% | −3.87% | −1.09% | +74% |
| NFLX | Netflix | $72.39 | +2.83% | +5.42% | −1.92% | −39% |
| ORCL | Oracle | $119.96 | +0.05% | −5.58% | −18.81% | −51% |
| TSLA | Tesla | $307.44 | — | −17.80% | −26.90% | −0% |
The pulse: a position unwind, not a demand shock
Read together, the two tables describe a rotation rather than a risk-off event. Money is leaving the most crowded, most-appreciated corner of the market — memory, storage and the equipment that supplies them — and it is not leaving technology wholesale. Apple, Meta and Microsoft are higher on the month while SK Hynix halves.
The tell is which names are being spared. Nvidia and Broadcom, the two semiconductor names that never participated in the twelve-month melt-up, are the only two not lower over four weeks. TSMC and Texas Instruments, the least momentum-driven of the group, are down single digits. Across the eighteen semiconductor names the rank correlation between twelve-month gain and one-month loss is −0.65 (Pearson −0.55) — a clear relationship, but a long way from mechanical.
That is the signature of a position unwind rather than a demand shock. It says nothing yet about memory pricing, HBM allocation or capex plans — those will show up in guidance, not in four weeks of tape. What it does say is that the crowded end of the AI hardware trade has been forcibly cleared out, and the names that were never crowded are barely moving.