What Happened?

A number of stocks jumped in the morning session after the semiconductor sector continued to rebound from the previous week's sharp selloff amid bullish Wall Street updates. 

Broadcom (AVGO) gained about 4.2% after it disclosed in an 8-K that it signed multi-year agreements with Apple through 2031 to supply custom ASIC silicon. Separately, bullish memory notes landed: UBS raised its Q3 DDR contract-pricing forecast to +32% quarter-on-quarter (from +17%) and reiterated DRAM undersupply "until at least 2Q28"; Citi added an upside catalyst watch on Micron; and BofA reiterated Buy ($1,550), arguing memory is "roughly 35-40% of cloud AI capex… yet memory stocks trade at sub-par 10x forward PE." Goldman's trading desk flagged an oversold buy-the-dip setup after momentum factors fell 24% from their peak, the largest drawdown since Q1 2023. This was a sector recovery on top of a technical bounce and cheaper oil after OPEC+ lifted output. 

Two events reinforced it as SK Hynix's ~$28bn Nasdaq listing the previous week and Samsung's earnings later in the week kept the "memory super-cycle" story in the headlines.

The stock market overreacts to news, and big price drops can present good opportunities to buy high-quality stocks.

Among others, the following stocks were impacted:

• Analog Semiconductors company Monolithic Power Systems (NASDAQ: MPWR) jumped 5.6%. Is now the time to buy Monolithic Power Systems? Access our full analysis report here, it’s free.
• Analog Semiconductors company Vishay Intertechnology (NYSE: VSH) jumped 5.3%. Is now the time to buy Vishay Intertechnology? Access our full analysis report here, it’s free.
• Analog Semiconductors company Microchip Technology (NASDAQ: MCHP) jumped 5.4%. Is now the time to buy Microchip Technology? Access our full analysis report here, it’s free.

Zooming In On Monolithic Power Systems (MPWR)

Monolithic Power Systems’s shares are very volatile and have had 25 moves greater than 5% over the last year. In that context, today’s move indicates the market considers this news meaningful but not something that would fundamentally change its perception of the business.

The previous big move we wrote about was 13 days ago when the stock dropped 8% on the news that a report that South Korea's SK Hynix is slowing its high-bandwidth memory (HBM) expansion rattled the AI-chip complex. The headline sounds bearish for AI, but the underlying report is a margin story, not a demand story. 

SK Hynix is deliberately slowing its HBM4 ramp to redirect capacity into conventional DRAM, where shortages have pushed operating margins above HBM's. Korean analysts pegged the margin gap at more than 15 points. HBM is the memory bolted onto Nvidia's AI accelerators, so any "slowing HBM" signal instinctively sparks fears the AI build-out is cooling which is why the reflex was to sell. The more accurate read is that all three memory makers are running the market tight (Samsung flagged a 146% DRAM ASP jump in Q1, SK Hynix mid-60%), keeping pricing power with sellers.

The bigger driver appeared like profit-taking after a parabolic run. Micron rose ~300% since the start of the year, colliding with a hawkish rate shift: traders pricing 50bps of Fed hikes by December under new Chair Kevin Warsh, making debt-funded AI capex harder to justify at record valuations. The divergence confirmed it: memory names took the brunt (Micron −11%) while logic-heavy Nvidia fell only ~3.6%. Wedbush framed the drop as a buying opportunity with enterprise demand intact.

Monolithic Power Systems is up 45.7% since the beginning of the year, but at $1,364 per share, it is still trading 19.3% below its 52-week high of $1,690 from June 2026. Investors who bought $1,000 worth of Monolithic Power Systems’s shares 5 years ago would now be looking at an investment worth $3,557.

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