Chip Stocks Slide as Memory Makers Tumble

Speculative positions in memory stocks are being unwound after a strong 2026, with investors weighing whether datacenter buildouts will slow.

Updated on Nov. 5, 2026 in Semiconductors

Chip Stocks Slide as Memory Makers Tumble

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Is now a good time for you to buy into the memory-chip dip?

Chip stocks sold off sharply on November 5, 2026, with the iShares Semiconductor ETF falling 9% and Micron dropping as much as 17% intraday before recovering somewhat. The selloff followed two weeks of accumulated losses in chip and memory stocks; these are market moves in publicly traded equities, not a technology development.

Why it matters

The move reflects a sharp repricing of semiconductor and memory stocks after strong year-to-date gains, with one portfolio manager attributing it to speculators being flushed out of memory names. A second view holds that datacenter buildouts could slow following Democrats' electoral wins, which would be a modest adjustment rather than a sea change.

The figures are market-price measurements for the iShares Semiconductor ETF and Micron shares, compared against their own year-to-date performance. The 3.9 forward price-to-earnings ratio for Micron is a valuation multiple per FactSet, meaning investors are paying 3.9 times projected earnings, while the sector's gains this year remain well above that baseline; whether the day's decline reflects a valuation reset or sentiment alone is not established by these figures.

The players

iShares Semiconductor ETF

An exchange-traded fund tracking semiconductor stocks, which fell 9% on the day and is up 35% year-to-date.

Micron

A memory chipmaker whose shares fell as much as 17% intraday and are up about 150% year-to-date.

FactSet

A financial data provider whose figures place Micron at a forward price-to-earnings ratio of 3.9.

The details

Semiconductor stocks, which make up the iShares Semiconductor ETF, fell sharply as selling intensified to an extreme level on November 5, 2026. Memory chipmaker Micron fell as much as 17% during the session before recovering part of the loss. The decline capped two weeks of losses in chip and memory stocks, following a year in which the ETF gained 35% and Micron roughly 150%.

Losses in chip and memory stocks accumulated over the two weeks before November 5, 2026.
The selloff in chip and memory stocks came to a head on November 5, 2026.

The Tech Race

The selloff is best read against the sector's own 2026 run-up, in which the semiconductor ETF gained 35% and Micron about 150% before the November 5 reversal. Whether memory makers keep pace with datacenter demand will depend on whether those buildouts slow as one portfolio manager projects.

The market move affects investors holding semiconductor ETFs and Micron shares rather than everyday users of chips. No change to product availability or pricing for consumers is reported, and the timeline for any effect on datacenter buildouts is not stated.

The takeaway

Watch whether the semiconductor ETF and Micron recover the November 5 losses over the coming sessions. Track any announced changes to datacenter buildout plans, which would confirm or contradict the portfolio manager's projection of a slight slowdown.