Micron Soars 19%, Market Value Breaks Trillions, S&P and Nasdaq Hit New Historical Closing Records

The semiconductor revelry is once again unfolding. Micron Technology's stock price has surged by more than 19% in a single day, and its market value has historically broken through the trillion-dollar milestone; the Philadelphia Semiconductor Index has achieved five consecutive days of gains, with its year-to-date increase exceeding 80%, setting a new high for outperformance relative to Nvidia since 2018. The S&P 500 index closed up by 0.61% at 7,519 points, and the NASDAQ 100 index closed up by 1.76% at 30,001 points, both刷新ing historical closing records.

Micron's "Deification" Today

Micron (MU) is undoubtedly the most dazzling protagonist in today's market. Its stock price soared by more than 19% in a single day, with its market value breaking through the 1 trillion dollars for the first time, and the trading volume reached 75 million shares.

The catalyst driving this market movement is multifaceted: UBS analyst Arcuri published a significant bullish report, significantly raising the target price from below 1000 dollars to 1625 dollars, reiterating that the strategic position of HBM/memory as a core component of data center (DC Stack) is being underestimated by the market. Meanwhile, active signals from Micron's management after a series of roadshows, such as "raising expectations," further boosted sentiment.

Joshua Kushner, founder of Thrive Capital, meaningfully posted the cover of Daft Punk's album "Random Access Memories" on social media—the letters R, A, M were bolded—which was interpreted by the market as a strong endorsement of the memory race, instantly igniting retail investor sentiment.

Given MU's 3.8% weighting in QQQQ, this 19% single-day gain directly contributed to 40% of the Nasdaq's daily increase, single-handedly supporting the entire tech index.

Semiconductor "Decoupling from Nvidia" Trend Continues

The deeper logic of this movement is the full-line outbreak of the entire analog/power semiconductor sector. Morgan Stanley's power semiconductor basket surged by 7% in a single day, with ON Semiconductor leading with a 9% increase, STMicroelectronics and ADI each rose by 6%, and Texas Instruments (TXN) increased by 5%.

BofA analyst Vivek explicitly listed TXN, ADI, ON as the top picks in the AI power race, with the core logic being that the transition process of 800V direct current power supply architecture is far underestimated by the market.

Semianalysis's latest research report technically proves the inevitability of this trend: the power density of AI racks approaches 600kW+, and compared to 54V, 800VDC can reduce the current by about 15 times and the resistive loss by about 220 times under the same conductor cross-sectional area. It predicts that the incremental capacity of 800VDC will reach 39GW by 2030, with an accompanying edge power rack TAM peak of about $11 billion, and solid-state transformers (SST) will form a $13 billion market by 2030.

The Philadelphia Semiconductor Index has risen by 14% over 5 days, and the 5-day price difference with Nvidia has expanded to 16.5 percentage points, setting the largest excess performance of the SOX index relative to Nvidia since 2018. Analysts attribute part of the strength of the memory/semiconductor sector to the follow-up effect of SK Hynix in South Korea and the continuous influx of retail demand—DRAM ETF's nominal leveraged trading volume reaches $3 billion in a single day.

Nvidia: "Sell the News" Trend Continues

In stark contrast to the revelry in the semiconductor sector, Nvidia (NVDA) fell slightly by 0.5%, and after the earnings release, it significantly underperformed the market for the third consecutive trading day, demonstrating a typical "sell the news" dynamic.

The market sentiment is undergoing a subtle shift, with analysts pointing out that the change rate of analog semiconductor sentiment in the past month may be the most drastic among AI semiconductor investors. Meanwhile, the current hedge fund semiconductor position has reached a historical record, the momentum factor skewness has reached the 90th percentile, and the options market Gamma has turned negative, with short-term volatility risks accumulating.

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