Shares of three of the most explosive semiconductor names of 2026 are sliding hard in Friday morning trading. Micron Technology (NASDAQ:MU | MU Price Prediction) stock is down 5% to $942, SanDisk (NASDAQ:SNDK) stock is off 5% to $1,664, and Marvell Technology (NASDAQ:MRVL) shares are lower by 6% to $298. The moves landed shortly after the open and have held into late morning.
The selling looks like a coordinated unwind of the so-called “Parabolic 7,” a basket coined by strategist Ben Emons of Highline Asset Management and amplified by Bloomberg’s Joe Weisenthal. The group includes SanDisk, Marvell, Micron, Intel (NASDAQ:INTC), Dell Technologies (NYSE:DELL), Advanced Micro Devices (NASDAQ:AMD), and Broadcom (NASDAQ:AVGO), and it has vastly outperformed both the Magnificent 7 and the SOX semiconductor index since mid-2025.
The context matters here. Through Tuesday’s close, SanDisk stock was up 623% year to date (YTD), Micron stock up 273%, and Marvell stock up 243%. A single-session pullback of 5% or 6% barely dents those runs, but it does mark a synchronized crack in the long trade.
Parabolic Breadth Hits an Extreme
The Parabolic 7 thesis revolves around what Emons calls “parabolic breadth,” meaning the share of S&P 500 market cap trading more than 100% above its 200-day moving average. Emons warned that “parabolic moves are reaching extremes (SanDisk)” and that the math now favors a sharp drawdown in at least one name in the group.
He went further, flagging “the mathematical chance of one of these stocks ‘crashing’ by nearly 100 percent” across the Parabolic 7 cohort that includes Micron, SanDisk, and Marvell. Strategist Barry Knapp has separately labeled the broader setup an “earnings bubble,” a label that gained traction once retail leverage became visible in options flow.
The fundamentals behind these names are not in question. Micron just guided fiscal Q2 2026 revenue to $18.7 billion at the midpoint, and Marvell raised both its fiscal 2027 and fiscal 2028 outlooks after reporting record Q1 FY2027 revenue of $2.42 billion. SanDisk’s last quarter showed revenue up 251% year over year (YoY) with the company’s datacenter segment revenue up 645%.
Peers Follow the Move
The unwind is not contained to memory names. Intel stock is down 6% in Friday trading, suggesting that the broader Parabolic 7 cohort is being sold off together. This points to basket-level positioning rather than a single-name catalyst.
The S&P 500 is along for the ride but not driving it. The SPDR S&P 500 ETF (NYSEARCA:SPY) is down 1% on the session, well shy of the declines in the high-beta AI hardware complex. Evidently, the relative weakness is concentrated where the gains were largest.
Reddit chatter captured the mood shift. A top thread on r/stocks Friday morning asked “Is it normal for semiconductor and AI infrastructure stocks to 10x in such a short time?”, drawing 439 upvotes as Micron sentiment flipped from very bullish (88) on Thursday evening to neutral (42) by Friday’s open.
What to Watch Now
Traders should keep an eye on whether Micron, SanDisk, and Marvell shares continue to decline into the close. A clean bounce would reinforce the dip-buying reflex that has resolved multiple pullbacks in 2026. A failure, on the other hand, could invite trend followers to begin trimming their exposure.
The Parabolic 7 still rests on real AI infrastructure demand, and Micron, SanDisk, and Marvell all carry order books that stretch well into 2027. Parabolic moves cut both ways, however, and investors might want to review their position sizing while volatility is elevated. A major signal to check for is whether any sell-side analyst notes recalibrate their price targets into next week.
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