Memory Chips Rebound Hardest Where Last Week Cut Deepest

• Beta is carrying 38.8% of the pre-open cross-section at z=+0.95, and the bid is landing squarely in the highest-beta names.
• Short-Term Momentum has returned -3.73% over the past 20 sessions at a 20-day z of -2.73; today's -0.38% extends the run.
• Dick's Sporting Goods is down -17.37%, erasing $2.7B of market value after a guidance cut on footwear weakness.
• Energy and precious metals are the exceptions to a broad risk bid: USO -3.15%, XLE -1.10%, SLV -1.21%.

August 25, 2026 · 08:19 ET · pre-open

The pre-open tape is sorted by last week's losses. Roundhill's memory-chip fund (DRAM) is up +4.00% after five sessions of -10.12%. iShares MSCI South Korea (EWY) is up +3.54% against a five-day -6.19%. Beta is the axis carrying it, and that single factor accounts for 38.8% of pre-open cross-sectional variance against 6.9% for Short-Term Momentum — the risk dial is where the whole cross-section is loading before the bell.

The second axis tells you which risk. Short-Term Momentum is -0.38% at z=-1.23, and the print is entirely one-sided: the worst recent multi-day losers are up +1.8% while the recent winners sit still. Inside that left tail, three AI, semiconductor and data-center names carry +3.0% and two defense names +1.1%.

The semiconductor bid has almost no company news in it. MaxLinear is up +3.30%, Ultra Clean +3.67% and Aehr Test Systems +4.89%, and in each the day's factor complex — Beta above all — accounts for essentially the entire move. Nvidia's +1.24% is built the same way ahead of its report tomorrowEconomic Times, and Micron is up +2.57% one session after falling 7% to roughly $898Economic Times.

Three Months of Fading the Last Move

Today is not an isolated snap-back. Short-Term Momentum has returned -3.73% over the past 20 sessions, with 20- and 63-day z-scores of -2.73 and -3.39. Same-sign readings at both windows mean one thing at every horizon: for three months, whichever names moved most over the prior week have reversed the week after.

The stress that set this up is documented. Morgan Stanley's prime brokerage desk recorded the second-largest weekly reduction in global equity exposure in twelve months in the week through August 20, led by de-grossing in Japan, China and Taiwan, and puts hedge-fund net exposure to Asia-Pacific semiconductors and hardware at 17% against a June peak of 23%. Bank of America's systematic flows monitor has CTA equity positioning back at pre-conflict levels, covered window unstated. The volatility configuration is the matching one: implied single-stock volatility (Cboe VIXEQ) sits at 38.14, the 81st percentile of its own history, while implied index volatility (Cboe VIX) at 15.76 is 24% below its 20-session high of 20.66 set July 29. Stretched single-stock volatility with index volatility easing off a local high is the setting in which short-horizon reversion runs strongest.

It has also paid nothing for a week. Over the past five sessions Short-Term Momentum has returned +0.10% at z=+0.14 — flat — and today's one-day print is mild by the factor's own dispersion. Beta's variance share dwarfs it this morning, which makes this a broad risk bid before it is anything more specific.

Who Is Actually in These Names

The ownership lenses do not hand the bid to hedge funds. Hedge-Fund Ownership is flat on the residualized measure at z=+0.14 and only +0.07% on a raw basis; the hedge-fund-owned names are participating through their beta tilt, absorbed upstream, rather than on their own axis. Short Interest is -0.07% at z=-0.39, with the most heavily shorted names lagging the barely-shorted ones and the model's most persistent drag still paying — that rules out short-covering as the mechanism.

What has quietly been paying is Morning Activity, the standing tilt toward names that habitually run volume-heavy mornings, a group skewing retail and international. Its 20-day z is +3.83, among the strongest stretches the factor has produced since 2020, though it gives a little back today at z=-0.54. FactorPulse's top 50 high-beta momentum names are up +2.99% pre-open against +0.09% for the names outside the screen, and that group carries a retail-heavy morning-trading tilt of 1.29σ — the bounce is concentrated in exactly the ownership base that has been rewarded all month.

Dick's Cuts the Year, Energy Gives It Back

Dick's Sporting Goods is down -17.37% pre-open, erasing $2.7B of market value. Second-quarter adjusted earnings came in at $3.53 a share against $3.76 expected, on revenue of $5.59 billionCNBC. Management cut full-year net sales guidance to a $21.9–22.2 billion range and named a challenging footwear market, with Foot Locker comparable sales down 3.6%CNBC. Nike is down -3.07% on the read-through, falling a further -1.84% in the last hour.

Tariff policy shows up on both sides of the same page. Acuity is up +10.83%, adding $1.1B of market value, on a fourth-quarter beat and expedited tariff refunds under the Treasury planBloomberg; the Dick's quarter included $59 million of tariff refundsCNBC. Canada's banks split on credit: Scotiabank is up +2.61% with third-quarter provisions of $1.08 billion per its quarterly filing, while Bank of Montreal manages only +0.27% despite provisions falling to $722 million.

Energy is the weak spot. USO is down -3.15% and XLE -1.10%, with the Oil factor -0.29% at z=-0.62; the move comes with Treasury Secretary Bessent's Iran sanctions plan still being digestedBloomberg. Gold is pausing rather than turning: the Gold factor is -0.23% today after 5- and 20-day z-scores of +2.88 and +2.50, and GDX hands back -0.47% against +36.72% over 20 sessions. The curve is lower across the board, the 10-year Treasury yield at 4.662%, down 4.2 basis points, with the belly leadingCNBC. The dollar is unchanged at 99.03CNBC, which leaves the silver and gold giveback without a currency explanation.

Economic Context

The Philadelphia Fed Non-Manufacturing Survey is due at 8:30 AM ET, with the general activity index expected to stay in expansion and the prices-paid component the component to watch for service-sector inflation. Consumer Confidence follows at 10:00 AM ET, where consensus looks for a slip to 90.3 from 90.8, with inflation expectations still above 3% and a narrowing "jobs plentiful" differential the softer detail underneath. The Richmond Fed manufacturing index, also at 10:00 AM ET, is expected to improve to 6 from July's 5. The bigger date is Thursday: the Jackson Hole symposium runs August 27–29, where Chair Kevin Warsh addresses inflation that has run above the 2% target for more than five yearsEconomic Times.

Data compiled by FactorPulse AI; edited and verified by Jeff Klein. For informational purposes only. Does not constitute financial advice, an investment recommendation, or an offer to buy or sell any securities. Always consult a qualified financial professional before making investment decisions.

For more on factor construction methodology, see www.factorpulse.com/glossary.

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