Applied Materials, Lam Research, KLA Corporation, FormFactor, and Penguin Solutions shares plummet, what you need to know
Published . Updated .
This report does not point to one industry. Broad-market names can move with it, and this note does not assume a direction.
Directly affected
- LRCX Lam Research-4.7%
Named in this report.
- FORM Formfactor-24.9%
Named in this report.
- PENG Penguin Solutions+25.4%
Named in this report.
Indirectly affected
- NVDA NVIDIA+5.2%
Chip makers and their suppliers move when export rules or Taiwan risk changes
- TSM Taiwan Semiconductor+3.2%
The main advanced-chip manufacturer sits in Taiwan
- ASML ASML-4.3%
Chipmaking-equipment sales follow export rules
- AVGO Broadcom-6.4%
Chip makers and their suppliers move when export rules or Taiwan risk changes
- AMD AMD+9.7%
Chip makers and their suppliers move when export rules or Taiwan risk changes
- AMAT Applied Materials-12.6%
Chip-equipment makers feel export controls
- SMH VanEck Semiconductor-0.7%
A fund of semiconductor companies
- SOXX iShares Semiconductor
A fund of semiconductor companies
- QQQ Invesco QQQ
Big tech moves with chip-supply risk
Price reaction, T-5 to T+3
| Ticker | T-5 | T-3 | T-1 | T0 | T+1 | T+2 | T+3 |
|---|---|---|---|---|---|---|---|
| LRCX | +14.76% | +14.53% | base | after close | after close | after close | after close |
| FORM | +10.47% | +13.25% | base | after close | after close | after close | after close |
| PENG | +10.04% | +8.55% | base | after close | after close | after close | after close |
| NVDA | +0.87% | +1.95% | base | after close | after close | after close | after close |
| TSM | +0.05% | +3.13% | base | after close | after close | after close | after close |
| ASML | +5.10% | +4.41% | base | after close | after close | after close | after close |
| AVGO | +1.67% | +3.45% | base | after close | after close | after close | after close |
| AMD | +4.06% | +5.15% | base | after close | after close | after close | after close |
| AMAT | +8.95% | +7.85% | base | after close | after close | after close | after close |
| SMH | +3.17% | +4.37% | base | after close | after close | after close | after close |
| SOXX | +3.68% | +5.17% | base | after close | after close | after close | after close |
| QQQ | +0.75% | +1.80% | base | after close | after close | after close | after close |
Closing-price change versus T-1, the last close before the story. T0 to T+3 fill in after each market close. Prices: Alpaca IEX.
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Applied Materials, Lam Research, KLA Corporation, FormFactor, and Penguin Solutions shares plummet, what you need to know Yahoo Finance
Source: Yahoo Finance
This story
| Company | When | Move | Status |
|---|---|---|---|
| AMAT | three days earlier | +7.85% | final price |
| AMAT | five days earlier | +8.95% | final price |
| AMD | three days earlier | +5.15% | final price |
| AMD | five days earlier | +4.06% | final price |
| ASML | three days earlier | +4.41% | final price |
| ASML | five days earlier | +5.10% | final price |
| AVGO | three days earlier | +3.45% | final price |
| AVGO | five days earlier | +1.67% | final price |
| FORM | three days earlier | +13.25% | final price |
| FORM | five days earlier | +10.47% | final price |
| LRCX | three days earlier | +14.53% | final price |
| LRCX | five days earlier | +14.76% | final price |
| NVDA | three days earlier | +1.95% | final price |
| NVDA | five days earlier | +0.87% | final price |
| PENG | three days earlier | +8.55% | final price |
| PENG | five days earlier | +10.04% | final price |
| QQQ | three days earlier | +1.80% | final price |
| QQQ | five days earlier | +0.75% | final price |
| SMH | three days earlier | +4.37% | final price |
| SMH | five days earlier | +3.17% | final price |
| SOXX | three days earlier | +5.17% | final price |
| SOXX | five days earlier | +3.68% | final price |
| TSM | three days earlier | +3.13% | final price |
| TSM | five days earlier | +0.05% | final price |
Congressional trades in the stocks in this story
- Sen. Sheldon Whitehouse sold Lam Research (LRCX) (held by a spouse), worth $1,001 - $15,000 on 13 Aug 2026. That is 71 days before publication. Filed 2 Sep 2026. View the filing.
- Rep. Rohit Khanna sold Lam Research (LRCX) (held by a spouse), worth $1,001 - $15,000 on 3 Aug 2026. That is 81 days before publication. Filed 4 Sep 2026. View the filing.
- Rep. Michael T. McCaul sold Formfactor (FORM) (held by a spouse), worth $1,001 - $15,000 on 5 Aug 2026. That is 79 days before publication. Filed 14 Oct 2026. View the filing.
- Rep. Michael T. McCaul sold Formfactor (FORM) (held by a spouse), worth $1,001 - $15,000 on 4 Aug 2026. That is 80 days before publication. Filed 14 Oct 2026. View the filing.
- Rep. Rohit Khanna bought Nvidia (NVDA) (held by a dependent child), worth $1,001 - $15,000 on 23 Sep 2026. That is 30 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Rohit Khanna sold Nvidia (NVDA) (held by a spouse), worth $1,001 - $15,000 on 4 Sep 2026. That is 49 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Daniel Meuser sold Nvidia (NVDA) (held by a spouse), worth $1,001 - $15,000 on 31 Aug 2026. That is 53 days before publication. Filed 14 Oct 2026. View the filing.
- Rep. Gilbert Cisneros bought Taiwan Semiconductor Manufacturing (TSM), worth $1,001 - $15,000 on 22 Sep 2026. That is 31 days before publication. Filed 12 Oct 2026. View the filing.
- Rep. Michael T. McCaul sold Taiwan Semiconductor Manufacturing (TSM) (held by a spouse), worth $1,001 - $15,000 on 25 Aug 2026. That is 59 days before publication. Filed 14 Oct 2026. View the filing.
- Rep. Richard W. Allen bought Taiwan Semiconductor Manufacturing (TSM) (held by a spouse), worth $1,001 - $15,000 on 12 Aug 2026. That is 72 days before publication. Filed 22 Sep 2026. View the filing.
- Rep. Michael T. McCaul bought Asml Holding (ASML) (held by a spouse), worth $50,001 - $100,000 on 7 Aug 2026. That is 77 days before publication. Filed 14 Oct 2026. View the filing.
- Rep. Rohit Khanna sold Broadcom (AVGO) (held by a spouse), worth $1,001 - $15,000 on 25 Sep 2026. That is 28 days before publication. Filed 7 Oct 2026. View the filing.
Public disclosure filings, not a recommendation. The filing link is the source document. News use of these reports still sits under 5 U.S.C. § 13107(c).
This story
12 out of 100
“Applied Materials, Lam Research, KLA Corporation, FormFactor, and Penguin Solutions shares plummet, what you need to know” scores 12 out of 100. The score uses 1 sources.