
Big gains are happening in the chip world. Companies that make memory chips are earning far more than before because AI needs a lot of power. One of those firms, Micron Technology, just beat every forecast for sales and profit, and it raised its future outlook.
When prices rise very fast, people often wonder if a bubble is forming. So, is this an AI bubble?
To answer, I looked at the semiconductor stocks inside the S&P 500 that have lifted the market the most since the March low. I also checked how big each company is by market value. I left out NVIDIA and Broadcom because they lagged behind their peers this year.
Micron Technology

Micron now has a market value of about $1.37 trillion and has climbed more than 230 % in the last three months.
Advanced Micro Devices (AMD)

AMD is worth roughly $868 billion and has risen over 150 % since March.
Intel Corp (INTC)

Intel’s market cap sits at about $668 billion, with a gain of more than 190 % in the past three months.
Applied Materials (AMAT)

Applied Materials is valued at $530 billion and is up roughly 90 % since the March low.
SanDisk Corp (SNDK)

SanDisk has a market cap of $346 billion and jumped more than 250 % in the last three months.
Looking at these five charts, it’s clear we have never seen such a strong move in semiconductor stocks before. The sector usually goes through big ups and downs, but this rise is faster and larger than any past boom.
Will it last? That’s a hard question to answer in a short note. We need to think about the overall market, each company’s earnings, future growth expectations, and even interest‑rate trends.
Live Talk About the AI Bubble
To dig deeper, I’m hosting a free live session titled “Is This an AI Bubble?” on Saturday, June 27 at 10 a.m. ET. Register to save your seat and get the link to join.
Enjoy your weekend and happy trading!
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