Global markets this week reflected two dominant narratives: rising geopolitical tensions in the Middle East and a spate of company-specific developments among semiconductor-linked names. The conflict in the region pushed energy equities higher, while separate events - including criminal charges, industry briefings and earnings - prompted sharp moves in individual technology stocks.
SMCI - Legal charges trigger steep selloff
Shares of Super Micro Computer (NASDAQ:SMCI) fell nearly 30% on Friday (as of 13:47 ET) after authorities charged three people, one of whom is identified as co-founder Yih-Shyan Liaw, with conspiring to smuggle advanced U.S. artificial intelligence technology to China. The criminal case led to an abrupt market reaction despite the company itself not being named as a defendant.
Bernstein analyst Mark Newman flagged reputational concerns in the wake of the charges, arguing the episode "raises serious credibility issues that could impact business." He added: "It’s one thing being duped once by rogue employees (allegedly) committing crime right under your nose, but its quite another hiring the same person back (as a board director too) and later for that same person to (allegedly) do something worse like this."
Energy stocks climb as Middle East strikes hit infrastructure
Escalating strikes tied to the crisis in the Middle East lifted oil and gas equities this week. Attacks were reported against Iranian facilities associated with the South Pars gas field, followed by retaliatory strikes from Iran on regional energy infrastructure, including a sizable LNG complex in Qatar. The market reaction favored energy names, with several major producers and oilfield operators posting notable weekly gains.
- Exxon Mobil +4.7%
- Chevron +4.2%
- Occidental Petroleum +5.8%
- BP +5.5%
- Shell +3.1%
- Devon Energy +8.3%
- ConocoPhillips +6.2%
Lumentum - Positive conference tone, mixed short-term move
Lumentum saw volatility around this week’s Optical Fiber Communication Conference. Although the stock slid more than 9% on Friday, it still finished the week up by more than 10% overall as investors reacted to an optimistic tone from the event.
Rosenblatt analyst Mike Genovese described the first day of the conference as constructive, noting that a bullish presentation from Lumentum and solid briefings from peers made day one positive. Stifel analyst Ruben Roy highlighted details from Lumentum’s investor briefing at OFC 2026, citing an updated long-term financial model that includes a $2 billion quarterly revenue run rate, with next-generation gross margin of 50.5% and next-generation operating margin of 40% anticipated within the next 18-24 months.
Roy also noted the company’s view of a substantial addressable market, quoting management’s projection of a "$90bn+ optical AI TAM by 2030," which he said represents about a "~40% CAGR from CY25A’s $18bn." He characterized the event as positive, with management messaging that reaffirmed accelerating longer-term growth drivers.
Micron Technology - Strong results but muted follow-through
Micron enjoyed an initially upbeat reaction this week, with the stock climbing to a fresh high ahead of its quarterly report. The company posted stronger-than-expected earnings on Wednesday, beating consensus estimates, yet the shares eased on Thursday and Friday. Over the week Micron ended up approximately 1.6%.
In response to the results, UBS analyst Timothy Arcuri raised his price target on Micron to $510 from $475 while keeping a Buy rating. Arcuri wrote that while the beat-and-raise was impressive, some of its market impact may have been absorbed by investors; he observed that gross margin guidance now exceeds 80%. He also highlighted that the first agreement Micron is signing spans five years - longer than expected - and suggested customers would only commit to such terms if they considered memory strategically important.
Nvidia - GTC enthusiasm but weekly pullback
Nvidia shares declined roughly 5.6% over the week despite positive commentary coming out of the company’s GTC event. Wedbush analyst Dan Ives described the GTC keynote as a pivotal "confidence boost" for technology investors, calling Jensen Huang the "Godfather of AI" and saying he made clear the AI Revolution is accelerating, not slowing, despite ongoing market noise.
Ives emphasized an updated revenue outlook highlighted at the keynote, noting management’s view of a very large addressable opportunity. He cited Jensen Huang’s announcement that Nvidia now sees more than $1 trillion in revenue opportunity from the Blackwell/Rubin architecture.
Market takeaways
This week’s action illustrates how external geopolitical shocks and company-level developments can push different corners of the market in opposite directions. Energy names benefited directly from heightened regional risk to supply and infrastructure, while individual semiconductor and technology-related firms reacted to legal events, conference guidance and earnings detail. Market moves were concentrated and specific to the drivers at hand rather than uniform across sectors.