Semiconductor Stocks Make Up 19.7% of S&P 500 as Chip Rally Tops $2 Trillion
Semiconductors made up 19.7% of the S&P 500 at the close of trading, a new record share for the sector. The milestone caps a second quarter that added roughly $2 trillion in combined market value for chipmakers Micron, Intel, and AMD, underscoring the sustained demand for AI infrastructure.
The $SOX semiconductor index surged nearly 88% in the three months through June, marking its strongest quarterly performance since records began and outpacing the 68% gain in the first quarter of 2000 during the dot-com boom. Individual names contributed heavily to the shift, with SanDisk climbing more than 764% and Micron gaining over 300% in the first half of the year. The chip rally also accelerated a broader market rotation, as the Magnificent 7 tech conglomerates lost over $2.3 trillion in value this month.
From the sources (13 posts)
@cointelegraph🚨 NOW: Mag 7 stocks have shed over $2.3T this month, down 10% in June for their worst month in over a year, as investors rotate into chipmakers profiting from AI spending.
@hedgeyeChipmakers are set for their best quarter of all time
@polymarketmoneyJUST IN: Semiconductor stocks now represent 19.7% of the S&P 500 — a new record.
@kobeissiletterUS chip stocks are on a historic run: The semiconductor index, $SOX, has outperformed the S&P 500 by +85 percentage points year-to-date, on pace for the best half-year outperformance in history. This would exceed the previous record set d
@exec_sumBREAKING: Chip stocks now make up 20% of the S&P 500
@stockmktnewzThe first half of 2026 in the stock market is now officially OVER Here are the best performing stocks from the S&P 500 so far in 2026 🥇 Sandisk $SNDK +857%🟢 🥈 Micron $MU +303%🟢 🥉 Intel $INTC +278%🟢 Western Digital $WDC +271%🟢 Seagate blo
@cnbcRecord chip rally adds $2 trillion in combined value to Micron, Intel and AMD in second quarter
@stockmktnewzMicron $MU and Intel $INTC and $AMD saw their market caps increase by a combined $2 Billion during Q2 and are now the 10th, 11th and 12th most valuable 🇺🇸 tech companies - CNBC
@kobeissiletterBREAKING: The market’s historic rally adds $2 trillion in combined value to Micron, $MU, Intel, $INTC, and AMD, $AMD, in Q2 2026.
@polymarketmoneyBREAKING: $MU, $INTC and $AMD added a combined $2T in market value during Q2 2026.
@negligible_cap2Q26 was the best quarter on record for semi stocks, with the $SOX index returning almost 88% according to Bloomberg. The previous best quarter for semis? First quarter of 2000, where semis returned around 68%.
@negligible_capSemis are now roughly 1/5th of the S&P500, the highest share in record per Citsec Semis share of the S&P500 has increased 4x since June of 2020
@barchartSemiconductor Stocks $SMH soared more than 70% this quarter, their best quarter in history 📈 📈