Key Highlights

  • Synaptics gained 20.00% over one month to $117.15 as screened on October 23, 2026, on a revised $123 per share cash takeover offer.
  • Aehr Test Systems fell 43.82% and indie Semiconductor fell 49.22% over the same month, with no company announcement explaining either decline.
  • Electronic technology fell 8.25% over one month but is still up 42.00% year to date.
  • inTest gained 19.30% after guiding to record third-quarter orders of $48 million to $50 million.
  • Universal Display reports on October 28, Aehr Test Systems on November 2, indie Semiconductor on November 5 and inTest on November 6.

Which Chip and Hardware Stocks Moved Most Over the Past Month?

Chip and hardware shares split sharply over one month as screened on Friday, October 23, 2026, even as electronic technology fell 8.25%. Synaptics (NASDAQ:SYNA) rose 20.00% to $117.15 on a revised $123 per share cash takeover by onsemi (NASDAQ:ON), and inTest (NYSEAMERICAN:INTT) gained 19.30% to $13.60 after guiding to record orders. NetApp (NASDAQ:NTAP) added 11.08% to $214.06 on a storage service with Oracle (NYSE:ORCL), and Universal Display (NASDAQ:OLED) added 10.08% to $86.37 ahead of earnings. Aehr Test Systems (NASDAQ:AEHR) fell 43.82% to $56.16 and indie Semiconductor (NASDAQ:INDI), a penny stock at $1.62, fell 49.22%, neither with a company announcement to explain it.

Synaptics: Why Did a Lower Takeover Price Still Lift the Shares?

Synaptics supplies semiconductors and software for touch, display and connected devices. On October 1 it agreed revised terms with onsemi at $123 per share in cash, about $5.7 billion, against about $7 billion in the June 25 agreement, or about 19% lower (calculated). The change followed an unsolicited proposal from an undisclosed bidder, and the all-cash structure gives shareholders value certainty. Shares rose 13.53% to $120.51 on October 2, which accounts for most of the monthly gain, and now sit about 4.8% below the offer (calculated). The FTC has approved the deal, other regulators are reviewing it, and closing is expected by mid-2027.

inTest: Why Did Shares Dip After a Record Orders Update?

inTest supplies test and process technology for semiconductor manufacturing and other industries. Its preliminary update of Monday, October 5 estimated third-quarter orders at a record $48 million to $50 million, up 28% to 33%, backlog of $58 million to $60 million against $45.4 million at June 30, and revenue at the high end of the $33 million to $35 million range. On Tuesday, October 6 shares fell 10.2% in pre-market trading to $13.50, and they have since risen 5.51% on the day and 5.43% on the week to $13.60. Gross margin is the open question, since the second quarter came in about 500 basis points below guidance. Full results are due Friday, November 6.

NetApp: Why Are Investors Split on the AI Storage Rally?

NetApp sells data storage and data management software. A September 30 announcement of a fully managed cloud storage service with Oracle was followed by higher price targets from several research firms and one upgrade, shown here as data points. Around October 15 a research firm downgraded the stock to equal weight, and NetApp, Dell (NYSE:DELL) and Hewlett Packard Enterprise (NYSE:HPE) slid that day on AI spending worries. The shares are up about 98.8% year to date, trade near 30 times trailing earnings and report next on Tuesday, December 1.

Universal Display: What Is Lifting OLED Shares Ahead of October 28 Earnings?

Universal Display licenses phosphorescent OLED technology to display makers. The stock rose 10.44% in the past week against a 10.08% monthly gain, so the first three weeks were essentially flat (calculated), and no company release explains the final week. Events in the window were a research firm downgrade to sell around October 8 on softer smartphone demand and the October 13 launch of NovaJet, the first commercial system on its vapor jet printing platform. First-quarter revenue fell 14% to $142.2 million, and full-year sales guidance is about $650 million. Third-quarter results arrive Wednesday, October 28.

Aehr Test Systems: Why Did Shares Fall Despite New AI Processor Orders?

Aehr makes test and burn-in systems that screen chips for reliability. Shares are down 43.82% over one month and 16.81% over one week, from near $100 a month earlier (calculated). On October 7 it announced follow-on orders of about $6 million for its Sonoma burn-in systems, equal to about 4% to 5% of fiscal 2027 revenue guidance of $130 million to $150 million (calculated). That guidance, set in July, raised the bar. First-quarter fiscal 2027 results are due after the close on Monday, November 2.

indie Semiconductor: Why Is the Penny Stock Down 49% Despite 24% Revenue Growth?

indie designs chips and software for automotive uses. Shares were at $1.62, down 49.22% over one month and 18.59% over one week, from near $3.19 a month earlier (calculated). October releases covered an in-cabin award on October 19 and a space mission selection on October 21, neither with financial terms. Second-quarter revenue rose 24% to $64.0 million with a GAAP net loss of $38.9 million, and third-quarter revenue is guided to $67 million to $73 million. Shares rose 17.78% on the August 6 report day, so the later decline erased more than that gain.

Electronic Technology: Why Did the Group Fall After a 42% Run This Year?

The group fell 8.25% over one month and 2.42% over one week, though it is still up 42.00% year to date. Lam Research (NASDAQ:LRCX) closed down 11.76% on Thursday, October 22 after revenue rose 54% to $8.22 billion, and Western Digital (NASDAQ:WDC) reported revenue up 55% to $4.381 billion. Pressure came from AI spending worries, financing costs and rates, with the 10-year Treasury yield at 4.96% on October 22 after peaking at 5.31% on October 5. Demand signals have not weakened.

Chip and Hardware Stocks Compared: How Wide Was the One-Month Gap?

Synaptics' 20.00% gain against indie Semiconductor's 49.22% fall is a spread of 69.22 percentage points (calculated). Against the group's 8.25% decline, Synaptics outperformed by 28.25 points, inTest by 27.55 points and Universal Display by 18.33 points, while Aehr Test Systems trailed by 35.57 points and indie Semiconductor by 40.97 points (all calculated). The four gainers averaged about 15.1% and the two decliners about minus 46.5% (calculated).

The gains rest on a cash offer, a company update, a partner service and an earnings run-up, while the declines have no announced cause. Aehr Test Systems reports on November 2 and indie Semiconductor on November 5, three days apart (calculated).

What to Watch Next: Which Reports Land Between October 28 and December 1?

Universal Display reports Wednesday, October 28, the day of the Fed meeting, followed by Aehr Test Systems on Monday, November 2, indie Semiconductor on Thursday, November 5 and inTest on Friday, November 6. NetApp reports Tuesday, December 1, 34 days after Universal Display (calculated). Synaptics follows the shareholder vote, overseas approvals and any competing proposal ahead of a mid-2027 close.