Stock Markets July 31, 2026 01:57 PM

Big Tech Earnings Drive Volatility as Memory Names See Wild Swings

Microsoft and Amazon rally on cloud-led beats while Apple, Meta and semiconductor suppliers face headwinds and uneven trading

By Hana Yamamoto
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A torrent of Big Tech quarterly reports this week produced sharply divergent stock moves. Microsoft and Amazon led gains after cloud-driven beats and stronger guidance, while Apple and Meta fell on conservative sales and margin outlooks. Memory and semiconductor names endured a roller-coaster week amid supply signals and speculation about forced selling.

Big Tech Earnings Drive Volatility as Memory Names See Wild Swings
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Key Points

  • Cloud growth and stronger-than-expected revenue guidance powered gains at Microsoft and Amazon, prompting renewed investor interest.
  • Apple and Meta saw sharp declines after issuing sales or margin guidance that disappointed expectations and revealing elevated costs.
  • Memory and semiconductor stocks experienced large swings after Samsung signalled HBM shortage concerns through 2027 and reports of a hedge fund collapse spurred speculation about forced selling.

This week’s slate of major technology earnings delivered a split market reaction, with some megacap names jumping after cloud strength and guidance beats, and others sliding on cautious near-term outlooks and rising costs. The semiconductor memory cohort experienced pronounced volatility, reversing midweek losses following company guidance and market speculation.

Microsoft

Shares of Microsoft climbed more than 15% on Thursday and moved up an additional 2.5% as of 13:39 ET on Friday after the company reported a quarterly beat and issued current-quarter revenue guidance that exceeded expectations. Management left its capital expenditure outlook for calendar 2026 unchanged. The results were fuelled by cloud growth that topped forecasts.

Barclays analysts noted the set of results prompted renewed investor interest after the stock had fallen over 19% year to date ahead of the announcement. As they put it, "The company is delivering better Azure and finally better Office growth, while also not surprising negatively on its capex outlook and FCF targets."

Apple

Apple dropped more than 9% on Friday after forecasting September-quarter sales growth of 9% to 11%, below consensus estimates of roughly 12%. The company also provided gross margin guidance that disappointed investors. The share price slipped back to around $300, a level not seen since the start of the month.

KeyBanc analyst Brandon Nispel reiterated an Underweight rating and a $250 price target in a note following the results. He observed that iPhone and Mac results beat estimates while iPad disappointed, and warned that significant supply constraints and foreign exchange headwinds are expected to pressure revenue going forward.

Amazon

Amazon emerged as one of the week’s largest megacap winners, with shares rallying more than 15% on Friday after the company topped second-quarter revenue estimates amid accelerating cloud growth. The company raised its full-year spending forecast by $20 billion to $220 billion, attributing the increase to higher memory chip costs and ongoing investment in AI infrastructure. Trailing 12-month capital expenditures rose to $173 billion.

Cantor Fitzgerald analyst Deepak Mathivanan kept an Overweight rating on the stock while trimming his price target to $320 from $330, stating, "We continue to believe that AWS acceleration has plenty of runway ahead as enterprise adoption of AI accelerates in the next few quarters."

Meta Platforms

Meta shares have fallen about 9% over the last week after the company reported second-quarter results after the close on Wednesday, missing estimates and issuing third-quarter revenue guidance below Wall Street expectations. The report prompted an 8% decline in Thursday’s trading session.

Total costs and expenses rose 55% to $42.03 billion, a figure that includes $2.4 billion in legal charges and $1.18 billion in severance costs related to the workforce reduction announced in May. Bank of America analysts said the sharp move lower reflected investor concerns about Meta’s investment direction, while noting that many of the elevated costs are unlikely to recur in 2027.

Memory stocks and semiconductor suppliers

Names in the memory sector saw dramatic swings. Stocks sold off markedly through Wednesday before staging a sizable rebound on Thursday after Samsung signalled that the high-bandwidth memory (HBM) supply shortage would intensify through 2027. Market chatter that the collapse of Leopold Aschenbrenner’s Situational Awareness hedge fund had triggered forced selling added to speculation that earlier declines were exaggerated.

Micron ended the week down 11.5% despite a one-day surge of 18.4% on Thursday. SanDisk fell 18.6% over the week even though it jumped 26% on Thursday, and SK Hynix lost 8.9% across the week.


Implications

The week's results underline how cloud performance and guidance are shaping investor sentiment across large-cap technology names, while capital expenditure plans and memory supply dynamics are driving outsized moves in the semiconductor complex. Elevated costs, supply constraints and currency pressures are key variables cited by analysts and management teams.

Bottom line - Earnings season has produced uneven outcomes: cloud-anchored beats gave several firms a lift, but margin and revenue guidance shortfalls, higher operating costs, and supply-chain signals have kept market volatility elevated, particularly among memory and semiconductor stocks.

Risks

  • Supply constraints and foreign exchange headwinds cited for Apple could pressure consumer electronics revenues and margins - impact on consumer tech and hardware sectors.
  • Rising costs and one-off charges at Meta introduced investor concern over investment direction and near-term profitability - impact on social media and ad-driven digital media sectors.
  • Continued intensity of HBM supply shortage through 2027 and potential forced selling dynamics in memory markets could sustain volatility for semiconductor and memory suppliers.

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