Nasdaq Composite Breaks Above Resistance, SpaceX & Micron Flying

The Nasdaq Composite jumped 3.07% to close at 26,683.94 on Monday, breaking decisively above May resistance levels in a tech-led rally driven by surging semiconductor and AI infrastructure stocks that have regained momentum after June’s sharp volatility.

The technology-heavy index’s advance marked a decisive technical breakout, with the close above prior resistance flipping what had been a ceiling into potential support. The move extends a powerful three-session rebound that has now recovered roughly 6% from the June 10th low, following a 7% pullback earlier in the month that had rattled markets and raised questions about the sustainability of the AI-driven rally.

Looking to today’s ASX session for clues, the NDQ ETF, which tracks the Nasdaq-100, added 1.3% to reach a new high at A$63.85, suggesting follow-through momentum despite the magnitude of the prior day’s advance.

Nasdaq Leaders

Leadership came from the AI and semiconductor complex. Micron Technology surged 10.84% to close at $1,087.99, extending gains another 3.3% to approximately $1,124 in pre-market trading. The memory chip giant has now rallied over 800% in the past twelve months, transforming from a cyclical DRAM producer into a core AI infrastructure play.

Marvell Technology climbed 10.43% to $308.88, capping a six-month gain of more than 182%. Arm Holdings advanced 8.33% to $412.55, while Advanced Micro Devices added 6.98% to $547.26. Lam Research, a critical wafer fabrication equipment supplier, rose 6.03% to $388.92.

The standout story beyond semiconductors was newly public SpaceX, trading under ticker SPCX.

SpaceX shares added 19.2% on IPO day with just a few hours of trading and then jumped 19.6% in its first full trading session Monday. Building on the trade, SPCX shares have jumped another 10.6% in pre-market trading this morning to sit above $212, as buyers continue to step in.

Index Laggards

Not all names participated in the rally, with traditional economy and defensive stocks failing to participate in the rally as rotation took over. Comcast fell 2.16% to $23.97, Mondelez declined 2.37% to $61.50, and Cognizant dropped 2.59% to $50.82. Old Dominion Freight Line led decliners with a 3.39% slide to $237.42.

Driving Sentiment

The rally’s foundation rests on a series of concrete developments in AI infrastructure that have given markets confidence in sustained demand visibility extending well into 2026 and beyond.

Micron Technology has emerged as the session’s bellwether after multiple reports confirmed that its high-bandwidth memory HBM3E capacity is fully sold out through 2026. The specialized memory chips, essential for AI graphics processing units, have become a critical bottleneck in data center buildouts. At the recent COMPUTEX 2026 trade show, Micron showcased an expanded portfolio of AI-optimized DRAM, HBM, and NAND products tailored for both data center and edge AI workloads, reinforcing the narrative that memory bandwidth and energy efficiency have become as strategically important as raw computing power in AI systems.

The sold-out status effectively gives Micron pricing power and revenue visibility that is highly unusual for what has historically been a cyclical commodity business. Markets are now treating the company as part of an AI oligopoly alongside Nvidia and a handful of advanced foundries, justifying a significant rerating from its traditional semiconductor cycle valuation.

Marvell Technology’s advance reflects both fundamental and technical catalysts. The company has launched its Teralynx T100 switch silicon, capable of 102.4 terabits per second throughput and designed specifically for AI data center fabrics. At COMPUTEX, Nvidia CEO Jensen Huang publicly endorsed Marvell, calling it a contender for future trillion-dollar company status and underlining its strategic relevance in AI networking infrastructure.

Marvell has also raised its AI infrastructure revenue outlook, pulling forward its target of reaching three billion dollars per quarter in revenue. The company is set to join the S&P 500 index on June 22nd, triggering passive inflows as index funds and exchange-traded funds rebalance portfolios to include the stock. This technical catalyst is layering on top of fundamental momentum, creating a powerful near-term tailwind.

The SpaceX initial public offering, which priced at $135 per share and raised approximately $85 billion at a roughly $1.7 trillion to $1.8 trillion initial valuation, has become a psychological marker for risk appetite. The company’s strong debut and continued surge position it among the largest public companies globally by market capitalization, in the same tier as Nvidia, Apple, Alphabet, Microsoft, Amazon, and Meta Platforms.

SpaceX’s multi-segment growth story spans launch services, the Starlink satellite broadband constellation, defense contracts, and emerging opportunities in edge computing and AI infrastructure in space. The market’s willingness to pay extreme multiples for this long-duration growth story signals that speculative appetite for frontier technology remains robust despite periodic volatility.

Meta Platforms held onto a 4.77% gain from the prior session, benefiting from ongoing enthusiasm around AI-driven advertising efficiency and the company’s open-source Llama AI models.

Resistance Flipped?

The break above May resistance at 26,683.94 flips that prior ceiling into potential support, creating a more constructive setup for bulls. If the index can hold above this level through the remainder of June, it would confirm that the recent pullback was a consolidation within an ongoing uptrend rather than the start of a pullback.

The bullish case rests on the argument that AI infrastructure spending is still in early innings, with multi-year visibility on capacity additions, networking upgrades, and memory requirements. Proponents point to sold-out HBM capacity, rising AI accelerator shipments, and hyperscaler capital expenditure commitments as evidence that demand is real and durable rather than speculative.

The bearish counter is that much of the current rally is flow-driven rather than purely earnings-driven. SpaceX’s IPO surge, Marvell’s S&P 500 inclusion, and momentum chasing in semiconductor names all represent technical or sentiment factors that can reverse quickly. Any hint of over-capacity, customer inventory digestion, or a pause in AI capital expenditure could trigger sharp de-ratings from current elevated multiples.