Stock Market Week: Chips, AI Sector Dive But Other Sectors Healthy; SpaceX, Tesla, Meta In Focus
Published . Updated .
SpaceX, Tesla and Meta led a big earnings week. Treasury yields plunged.
Directly affected
- TSLA Tesla+4.4%
Named in this report.
Indirectly affected
- NVDA NVIDIA+0.6%
Chip makers and their suppliers move when export rules or Taiwan risk changes
- TSM Taiwan Semiconductor-1.5%
The main advanced-chip manufacturer sits in Taiwan
- ASML ASML-7.1%
Chipmaking-equipment sales follow export rules
- AVGO Broadcom-10.6%
Chip makers and their suppliers move when export rules or Taiwan risk changes
- TLT iShares 20+ Year Treasury Bond-1.8%
Long-term bonds move when yields change
- IEF iShares 7-10 Year Treasury Bond-0.9%
Treasury bonds move when yields change
- XLV Health Care Select Sector SPDR
A fund of health-care companies
- XBI SPDR S&P Biotech
A fund of biotechnology companies
- AMD AMD-1.6%
Chip makers and their suppliers move when export rules or Taiwan risk changes
- AMAT Applied Materials
Chip-equipment makers feel export controls
Price reaction, T-5 to T+3
| Ticker | T-5 | T-3 | T-1 | T0 | T+1 | T+2 | T+3 |
|---|---|---|---|---|---|---|---|
| TSLA | -5.35% | -0.29% | base | -0.54% | after close | after close | after close |
| NVDA | +0.87% | +1.95% | base | -0.35% | after close | after close | after close |
| TSM | +0.05% | +3.13% | base | +1.10% | after close | after close | after close |
| ASML | +5.10% | +4.41% | base | +0.67% | after close | after close | after close |
| AVGO | +1.67% | +3.45% | base | -0.12% | after close | after close | after close |
| TLTNo price data for this ticker | — | — | — | — | — | — | — |
| IEFNo price data for this ticker | — | — | — | — | — | — | — |
| XLV | -2.58% | -0.84% | base | -1.09% | after close | after close | after close |
| XBI | -4.79% | +1.07% | base | -1.27% | after close | after close | after close |
| AMD | +4.06% | +5.15% | base | +1.64% | after close | after close | after close |
| AMAT | +8.95% | +7.85% | base | +0.64% | 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.
Market Call
Think this story will push the stock up or down over the next three trading days? Make a free call and see what other readers think. Points are play money with no cash value.
Stock Market Week: Chips, AI Sector Dive But Other Sectors Healthy; SpaceX, Tesla, Meta In Focus Investor's Business Daily
Source: Investor's Business Daily
Semiconductors
| Company | When | Move | Status |
|---|---|---|---|
| AMAT | that day | +0.64% | final price |
| AMAT | three days earlier | +7.85% | final price |
| AMAT | five days earlier | +8.95% | final price |
| AMD | that day | +1.64% | final price |
| AMD | three days earlier | +5.15% | final price |
| AMD | five days earlier | +4.06% | final price |
| ASML | that day | +0.67% | final price |
| ASML | three days earlier | +4.41% | final price |
| ASML | five days earlier | +5.10% | final price |
| AVGO | that day | -0.12% | final price |
| AVGO | three days earlier | +3.45% | final price |
| AVGO | five days earlier | +1.67% | final price |
| LRCX | that day | +0.11% | final price |
| LRCX | three days earlier | +14.53% | final price |
| LRCX | five days earlier | +14.76% | final price |
| NVDA | that day | -0.35% | final price |
| NVDA | three days earlier | +1.95% | final price |
| NVDA | five days earlier | +0.87% | final price |
| SMH | that day | +0.78% | final price |
| SMH | three days earlier | +4.37% | final price |
| SMH | five days earlier | +3.17% | final price |
| TSLA | that day | -0.54% | final price |
| TSLA | three days earlier | -0.29% | final price |
| TSLA | five days earlier | -5.35% | final price |
| TSM | that day | +1.10% | final price |
| TSM | three days earlier | +3.13% | final price |
| TSM | five days earlier | +0.05% | final price |
| XBI | that day | -1.27% | final price |
| XBI | three days earlier | +1.07% | final price |
| XBI | five days earlier | -4.79% | final price |
| XLV | that day | -1.09% | final price |
| XLV | three days earlier | -0.84% | final price |
| XLV | five days earlier | -2.58% | final price |
Congressional trades in the stocks in this story
- Rep. Rohit Khanna bought Tesla (TSLA) (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.
- Rep. Rohit Khanna bought Tesla (TSLA) (held by a dependent child), worth $15,001 - $50,000 on 11 Sep 2026. That is 42 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Rohit Khanna bought Tesla (TSLA) (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. 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.
- Rep. Rohit Khanna sold Broadcom (AVGO) (held by a dependent child), worth $15,001 - $50,000 on 23 Sep 2026. That is 30 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).
How solid the semiconductors case looks
12 out of 100
“Stock Market Week: Chips, AI Sector Dive But Other Sectors Healthy; SpaceX, Tesla, Meta In Focus” scores 12 out of 100. The score uses 1 sources.