Even ASML's strong earnings can't save it! U.S. chip stocks' slump intensifies, with industry index at risk of losing a trillion dollars in market value

The chip stock sell-off, which had just eased during Tuesday's session, intensified again on Wednesday. Memory chip stocks such as Micron Technology and SK hynix weakened once more, and the industry benchmark Philadelphia Semiconductor Index (SOX) once fell by over 4% intraday, set to mark its sixth consecutive day of losses.

Media outlets report that with concerns mounting over rising interest rates, high valuations, and the costly buildout of AI infrastructure, the total market capitalization of SOX components faces the risk of evaporating by more than $1 trillion. As of Wednesday, June 14 (U.S. Eastern time), when SOX fell over 3% intraday, the index had accumulated a six-day decline of 10%, with over half of its constituents dropping at least 10% over the period.

This correction is evolving from short-term profit-taking into a comprehensive test of the AI investment thesis. September’s U.S. CPI inflation was stronger than expected, reinforcing market anxiety about further Fed hikes. Broadcom CEO Hock Tan earlier warned the AI industry could face funding constraints. Even strong results and upgraded sales guidance from semiconductor equipment leader ASML failed to effectively lift chip stocks.

The real question now is not merely whether AI demand remains robust, but whether massive capital expenditures can translate into sustainable earnings growth, and whether current valuations have already priced in future profits.

SOX Faces Six-Day Losing Streak, Global Chip Stocks Risk Nearly $1 Trillion in Lost Market Value

During Wednesday's session, the Philadelphia Semiconductor Index hit fresh intraday lows with a drop close to 4.2%, on track to close down for the sixth straight session—marking the longest losing streak since May 2025.

At the individual stock level, the correction has spread from memory chips to chip design and manufacturing equipment. According to Bloomberg, over half of SOX constituents have dropped at least 10% in the last six trading days. Arm's U.S. shares (ARM) have fallen nearly 20% over the same period, Applied Materials (AMAT) about 15%, Intel (INTC) approximately 11%. GlobalFoundries (GFS) is the only constituent to post a gain during this timeframe.

On Wednesday, Arm plunged over 6% intraday, Intel over 4.6%. Memory stocks, after a brief respite on Tuesday, weakened collectively again: SK hynix's U.S. shares (SKHY) fell over 5.8%, SanDisk (SNDK) dropped 4.9%, Micron Technology (MU) lost 3.5%, and both Western Digital (WDC) and Seagate Technology (STX) slumped over 3% intraday.

From Korea and Japan to the U.S., memory chip stocks have already seen severe corrections, and now the decline is spreading further into chip design and equipment manufacturers, showing that investors are reducing exposure across the semiconductor sector.

Bloomberg notes that, based on recent declines, SOX constituents are at risk of losing over $1 trillion in market value. This does not mean all that value has already vanished, but rather that if the sell-off continues, the global semiconductor industry may face a dramatic valuation retracement.

Rising Inflation, Rate Hike Fears Rekindled, AI High Valuations Under Pressure

One major factor fueling the continued chip stock decline is a tightening macro interest rate environment.

U.S. September inflation data beat market expectations, with consumer price increases at their highest since April, largely driven by higher fuel costs. This reinforced expectations that the Fed may keep hiking rates, and even if the Fed holds steady later this month, investor perceptions about the future rate path have shifted.

For high-valuation tech stocks whose earnings outlook depends on future growth, rising rates mean lower discounted future cash flows and higher costs for financing and expansion. Semiconductor firms, benefiting from AI infrastructure buildout but facing heavy capital expenditure and lengthy payback periods, are especially sensitive to rate changes.

Meanwhile, the AI trade itself is under renewed scrutiny. Earlier this week, Broadcom CEO Hock Tan likened some AI fever investors to casino gamblers and warned the industry could face funding constraints—further fueling concerns about the sustainability of the AI investment boom.

In recent years, investors have been willing to pay premiums for rapid computing power demand growth; now, the market is taking a harder look at companies’ financing abilities, capex size, and the speed at which profits actually materialize. When inflation pushes up rate expectations, capital costs rise, and valuation pressures mount, even strong long-term demand can’t prevent severe stock price corrections.

ASML’s Strong Results—Why Can’t They Save Chip Stocks?

This week, as chip stocks fell further, semiconductor equipment titan ASML reported robust quarterly results and raised its full-year sales guidance, with strong multi-year equipment demand from customers. Yet, the earnings report failed to reverse the broader chip stock downturn.

Barron's analysis points out that a key reason is that ASML sits upstream in the semiconductor supply chain. Strong demand for its lithography equipment shows that chipmakers are still planning to expand capacity, but doesn't directly prove that downstream chip buyers will keep purchasing at the same pace.

ASML’s customers include chipmakers like TSMC and Intel, while the real drivers of the current AI investment cycle are end customers such as Microsoft, Google, Amazon, and other hyperscale data center operators. For chipmakers, equipment orders and long-term capacity planning matter, but more direct impacts on revenue and profits come from whether downstream buyers keep ordering chips—and whether those purchases yield enough returns.

ASML's strong performance demonstrates ongoing resilience in AI-related equipment demand, but that alone doesn't dispel market worries about capex efficiency in AI. In other words, order visibility for equipment makers and profit realization for chipmakers are not the same thing.

Furthermore, strong demand for ASML’s equipment could have another effect: if tight supply pushes up ASML’s product prices, customers like TSMC and Intel may face higher equipment procurement costs in the future. For companies already facing massive investments to build advanced process capacity, this could further heighten capex pressure.

Therefore, ASML’s results failing to lift the whole chip sector doesn’t necessarily mean AI demand is weakening, but rather reflects a market now wanting to see proof that the entire value chain can sustainably profit from AI investment—not just upstream order growth.

Wall Street Cuts Outlook: AI Investment to Shift from Spending to Profits

Ulrich Hofmann-Burchardi, from UBS Chief Investment Office, noted in a Wednesday research report that pressure on global chip stocks continues to mount. She believes intensifying AI competition, growing funding needs, and rising interest rates could amplify volatility at times, but this correction is more a market expectations reset than a collapse of the AI investment case.

This judgment highlights a current market divide: on one hand, AI infrastructure buildout could last for years; on the other, investors are doubting whether this surge in capital spending is sustainable and whether the resulting profits will meet previously lofty projections.

Bloomberg points to an upcoming important test: Anthropic’s investor event, reportedly held in San Francisco on Wednesday. Wall Street hopes the AI company will reveal revenue run rates, to better assess if AI company income growth can sustain ever-expanding computing investment.

UBS recommends investors focus on whether AI spending can deliver sustainable profit growth, and whether AI applications on the enterprise and consumer sides keep widening. Compared to simply tracking capex totals, these metrics better help determine if today’s investment fever yields stable commercial returns.

If AI firms can keep growing revenue and profitability—and prove that huge infrastructure outlays deliver reasonable returns—then the present correction is more likely a recalibration of valuations and expectations. Conversely, if spending outpaces revenue and cash flow improvement, market tolerance for high valuations could fall further.

AI Boom Not Disproved, but the Market Is Raising Return Thresholds

From SOX’s losing streak, to ASML’s stout earnings failing to spark a rebound, to inflation and rate expectations weighing afresh, today’s chip stock landscape signals investors are shifting from chasing AI-driven growth to scrutinizing real economic returns from AI investment.

This doesn’t mean AI demand has collapsed. ASML's orders and sales guidance still show strong semiconductor equipment resilience. Yet, for chip manufacturers and AI infrastructure firms, the market wants more solid proof that ever-increasing capex will translate into matching income, profits, and cash flow.

In this context, over $1 trillion in potential market cap at risk reflects not only the scale of recent sell-offs, but also a change in market pricing logic: AI may remain a powerful long-term growth driver, but companies can no longer rely solely on a growth story to fetch premium valuations.

Going forward, key variables for chip stocks stabilizing will include AI companies’ revenue run rates, return on capital spending, and their financing capacity in a higher-rate environment.