Semiconductor ETF Swings From Rout to Rally as Memory-Chip Economics Rewrite the Sector's Rules

Chip sector surges 8.5% after $1.3T selloff, fueled by AI demand, Omdia's 94% growth forecast, and strong earnings from Amazon, Samsung, and Lam Research.

The whiplash hitting semiconductor investors right now is not for the faint of heart. After a two-day selloff that erased roughly $1.3 trillion in market value from the industry's twenty largest names, the VanEck Semiconductor UCITS ETF staged a ferocious comeback, climbing 8.54 percent to close at 88.71 euros. The rebound marked the sector's sharpest single-day reversal since April, with the Philadelphia Semiconductor Index surging 8.19 percent to 11,302.99 points after having plunged 26.7 percent in July alone.

What followed was an even more telling session. The ETF added another 3.21 percent on Friday, reaching 91.56 euros, as a wave of earnings reports and an upgraded industry forecast reinforced the central thesis driving this market: the appetite for AI infrastructure shows no signs of cooling.

A Forecast Nearly Doubled

The catalyst for Friday's move came from Omdia, which on July 30 sharply revised its 2026 revenue projection for the semiconductor industry. The research firm now expects sales to climb 94.1 percent year over year, powered by exceptional demand for AI hardware — particularly DRAM and NAND memory chips. Memory ICs are projected to account for more than half of total semiconductor revenue for the first time in 2026, with shortages of high-bandwidth memory and advanced chip packaging expected to persist at least through 2027. That tightness keeps prices elevated, and the ETF's heavyweight positions are squarely in the line of fire — in the best possible way.

Earnings Season Piles On

The numbers flooding in from across the industry tell a remarkably consistent story. Amazon delivered its proof point on July 30, with AWS growing 37 percent — the cloud division's fastest pace in eighteen quarters. CEO Andy Jassy cited "booming" demand for AI and custom chips, and Amazon raised its 2026 capital expenditure budget to $220 billion, a $20 billion increase over prior plans, explicitly blaming higher memory-chip prices for the additional spending.

Samsung Electronics posted record second-quarter revenue of 171.5 trillion won with operating profit of 89.5 trillion won, its memory division turning in the best performance in company history. The Korean giant also confirmed it has begun shipping initial HBM4E samples to key customers. Perhaps more consequentially for the market's psychology, Samsung warned that memory-chip scarcity could persist through 2028, as AI-driven demand continues to outstrip supply. That kind of structural outlook helped investors reframe the preceding selloff as an overreaction rather than a signal of deteriorating fundamentals.

The previous day's rally had been ignited by a similar wave of results. Lam Research, the chip-equipment maker, posted record fourth-quarter revenue of $6.72 billion, up 30 percent year over year, with net income climbing 32 percent to $2.28 billion and gross margin hitting a twenty-year high of 52 percent. The stock jumped as much as 20 percent — its biggest one-day gain since 1999 — after management raised its forecast for global wafer-fabrication equipment spending to $150 billion.

Microsoft added fuel across the entire technology complex. The software giant's shares surged roughly 15 percent, adding $450 billion in market value to reach $3.35 trillion — reportedly the largest single-day gain in eighteen years — after Azure revenue topped $100 billion and backlog jumped 84 percent to $678 billion. The cloud strength reassured investors that AI infrastructure spending remains on an upward trajectory, a signal that rippled directly through chip stocks: Micron gained about 18 percent, SanDisk roughly 26 percent, AMD around 13 percent, and Intel approximately 11 percent. Not every tech name participated in the rally — Meta fell nearly 8 percent after a weak outlook.

The Other Side of the Coin

Not all signals point in the same direction. Apple posted record June-quarter revenue of $109.4 billion but cautioned that growing supply constraints — tight capacity at advanced chip nodes and exploding memory prices — would temper September-quarter growth. Intel painted a split picture: revenue rose 25 percent to $16.1 billion, and its data-center and AI business grew 59 percent, but a non-cash charge of $12.5 billion tied to its CHIPS Act agreement produced a GAAP net loss of $11 billion.

The sector's supply-chain fragility also remains front and center. A magnitude 7.1 earthquake struck Japan's Kumamoto region on July 28, home to TSMC, Sony, Renesas, and Tokyo Electron facilities. TSMC quickly resumed operations at its affected plant, and Renesas said it would gradually restart production by August 5. But Sony's Kumamoto facility, which holds over 43 percent global market share in image sensors, had no confirmed restart date. Historical precedent offers little comfort: after a comparable quake in the region in 2016, full recovery took roughly three and a half months. TSMC did provide some relief by giving the all-clear for its JASM fab following the seismic activity.

Reading the Tape

Despite the two-day surge, the ETF remains 17.65 percent below its 52-week high of 111.18 euros, reached on June 30. Over twelve months, however, the fund is still up 117.87 percent, and it trades 30.52 percent above its 200-day moving average — evidence that the longer-term uptrend remains intact even as July's swings tested investors' nerves.

Arm Holdings added to the positive momentum with quarterly revenue of $1.29 billion. The next major test arrives on August 4, when AMD reports earnings — a print that could set the sector's direction for the weeks ahead. The question hanging over the market is whether memory-chip shortages continue to bolster manufacturers' margins, or whether customers like Apple increasingly feel the sting of rising costs. For now, the data points overwhelmingly to the former, but the volatility of the past week is a reminder that in this sector, conviction and caution are rarely more than a few trading sessions apart.