AI stocks rally as SK Hynix jumps 11%, Micron and Sandisk gain 4%
Published . Updated .
South Korean chipmakers led a broader AI recovery after SK Hynix reported a sevenfold profit surge and announced another $45 billion in shareholder returns.
Directly affected
- SKHY SK hynix
Named in this report.
- MU Micron Technology+0.3% 30d
Named in this report.
- SNDK Sandisk-15.9% 30d
Named in this report.
Indirectly affected
- QQQ Invesco QQQ+1.7% 18d
Invesco QQQ: it holds the big tech and AI names. Linked by “ai” (AI and big tech) in this story.
- AIQ Global X Artificial Intelligence & Technology ETF-1.8% 30d
Global X Artificial Intelligence & Technology ETF: it holds the big tech and AI names. Linked by “ai” (AI and big tech) in this story.
- SMH VanEck Semiconductor ETF+2.2% 30d
VanEck Semiconductor ETF: it holds chipmakers. Linked by “chipmaker” (semiconductors) in this story.
- EWY iShares MSCI South Korea ETF-10.4% 30d
iShares MSCI South Korea ETF holds stocks listed in South Korea, which this story is about (“korean”).
- MSFT Microsoft+8.4% 30d
Microsoft (prepackaged software): big tech's AI spending and demand drive its shares. Linked by “ai” (AI and big tech) in this story.
- GOOGL Alphabet-6.5% 30d
Alphabet (computer programming, data processing, etc.): big tech's AI spending and demand drive its shares. Linked by “ai” (AI and big tech) in this story.
- NVDA Nvidia+1.9% 30d
Nvidia (semiconductors and related devices): big tech's AI spending and demand drive its shares. Linked by “ai” (AI and big tech) in this story.
- ASML ASML Holding N.V
ASML Holding N.V (special industry machinery): chip demand, export rules and supply drive chipmakers' shares. Linked by “chipmaker” (semiconductors) in this story.
Price reaction, T-5 to T+3
| Ticker | T-5 | T-3 | T-1 | T0 | T+1 | T+2 | T+3 |
|---|---|---|---|---|---|---|---|
| SKHY | -1.40% | -5.65% | base | after close | after close | after close | after close |
| MU | -1.67% | -5.57% | base | after close | after close | after close | after close |
| SNDK | +5.58% | -5.16% | base | after close | after close | after close | after close |
| QQQ | +0.56% | -2.36% | base | after close | after close | after close | after close |
| AIQNo price data for this ticker | — | — | — | — | — | — | — |
| SMH | -0.22% | -5.49% | base | after close | after close | after close | after close |
| EWYNo price data for this ticker | — | — | — | — | — | — | — |
| MSFTNo price data for this ticker | — | — | — | — | — | — | — |
| GOOGLNo price data for this ticker | — | — | — | — | — | — | — |
| NVDA | +1.85% | -3.14% | base | after close | after close | after close | after close |
| ASML | +2.55% | -3.89% | 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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AI stocks rally as SK Hynix jumps 11%, Micron and Sandisk gain 4% CoinDesk
Source: CoinDesk
Invesco Qqq Trust, Series 1 (QQQ) since this story, compared with the market
| Company | When | Move | Status |
|---|---|---|---|
| ASML | three days earlier | -3.89% | final price |
| ASML | five days earlier | +2.55% | final price |
| MU | three days earlier | -5.57% | final price |
| MU | five days earlier | -1.67% | final price |
| NVDA | three days earlier | -3.14% | final price |
| NVDA | five days earlier | +1.85% | final price |
| Invesco Qqq Trust, Series 1 (QQQ) | three days earlier | -2.36% | final price |
| Invesco Qqq Trust, Series 1 (QQQ) | five days earlier | +0.56% | final price |
| SKHY | three days earlier | -5.65% | final price |
| SKHY | five days earlier | -1.40% | final price |
| SMH | three days earlier | -5.49% | final price |
| SMH | five days earlier | -0.22% | final price |
| SNDK | three days earlier | -5.16% | final price |
| SNDK | five days earlier | +5.58% | final price |
Trades by members of Congress and officials in the stocks in this story
- Rep. Gilbert Cisneros bought SK hynix (SKHY), worth $1,001 - $15,000 on 7 Aug 2026. That is 82 days before publication. Filed 10 Sep 2026. View the filing.
- Sen. John Boozman sold Micron Technology (MU) (jointly held), worth $1,001 - $15,000 on 24 Sep 2026. That is 34 days before publication. Filed 21 Oct 2026. View the filing.
- Sen. John Boozman sold Micron Technology (MU) (jointly held), worth $1,001 - $15,000 on 9 Sep 2026. That is 49 days before publication. Filed 21 Oct 2026. View the filing.
- Donald J Trump, an executive branch official, sold Micron Technology (MU), worth $250,001 - $500,000 on 21 Aug 2026. That is 68 days before publication. Filed 8 Oct 2026. View the filing.
- Rep. Lisa McClain bought Microsoft (MSFT) (held by a spouse), worth $1,001 - $15,000 on 30 Sep 2026. That is 28 days before publication. Filed 12 Oct 2026. View the filing.
- Rep. Michael Rulli sold Microsoft (MSFT), worth $1,001 - $15,000 on 28 Sep 2026. That is 30 days before publication. Filed 2 Oct 2026. View the filing.
- Rep. Maria Elvira Salazar sold Microsoft (MSFT), worth $1,001 - $15,000 on 24 Sep 2026. That is 34 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Pete Sessions sold Alphabet (GOOGL), worth $15,001 - $50,000 on 14 Sep 2026. That is 44 days before publication. Filed 18 Sep 2026. View the filing.
- Rep. Rohit Khanna sold Alphabet (GOOGL) (held by a spouse), worth $1,001 - $15,000 on 4 Sep 2026. That is 54 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Thomas H. Kean Jr sold Alphabet (GOOGL), worth $1,001 - $15,000 on 27 Aug 2026. That is 62 days before publication. Filed 12 Sep 2026. View the filing.
- Rep. Cleo Fields bought Nvidia (NVDA), worth $1,001 - $15,000 on 1 Oct 2026. That is 27 days before publication. Filed 22 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 35 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).
Who gains and who loses around Invesco Qqq Trust, Series 1 (QQQ)
Companies carried with this story
- QQQ Invesco Qqq Trust, Series 1
Invesco Qqq Trust, Series 1 (QQQ) is linked, with no stored direction, medium confidence in the 28 Oct 2026 story “AI stocks rally as SK Hynix jumps 11%, Micron and Sandisk gain 4%.” Reason on file: Invesco QQQ: it holds the big tech and AI names. Linked by “ai” (AI and big tech) in this story
- AIQ Global X Fds
For “AI stocks rally as SK Hynix jumps 11%, Micron and Sandisk gain 4%,” Global X Fds (AIQ) is linked, with no stored direction, medium confidence. Reason on file: Global X Artificial Intelligence & Technology ETF: it holds the big tech and AI names. Linked by “ai” (AI and big tech) in this story
- MSFT Microsoft
For “AI stocks rally as SK Hynix jumps 11%, Micron and Sandisk gain 4%,” Microsoft (MSFT) is linked, with no stored direction, medium confidence. Reason on file: Microsoft (prepackaged software): big tech's AI spending and demand drive its shares. Linked by “ai” (AI and big tech) in this story
- GOOGL Alphabet
For “AI stocks rally as SK Hynix jumps 11%, Micron and Sandisk gain 4%,” Alphabet (GOOGL) is linked, with no stored direction, medium confidence. Reason on file: Alphabet (computer programming, data processing, etc.): big tech's AI spending and demand drive its shares. Linked by “ai” (AI and big tech) in this story
- AMZN Amazon Com
In “AI stocks rally as SK Hynix jumps 11%, Micron and Sandisk gain 4%,” Amazon Com (AMZN) is linked, with no stored direction, medium confidence. Reason on file: Amazon.com (catalog and mail-order houses): big tech's AI spending and demand drive its shares. Linked by “ai” (AI and big tech) in this story
- META Meta Platforms
Meta Platforms (META) is linked, with no stored direction, medium confidence in the 28 Oct 2026 story “AI stocks rally as SK Hynix jumps 11%, Micron and Sandisk gain 4%.” Reason on file: Meta Platforms (computer programming, data processing, etc.): big tech's AI spending and demand drive its shares. Linked by “ai” (AI and big tech) in this story
Invesco Qqq Trust, Series 1 (QQQ)
“AI stocks rally as SK Hynix jumps 11%, Micron and Sandisk gain 4%” (28 Oct 2026) reaches Invesco Qqq Trust, Series 1 (QQQ) through this story.
Invesco Qqq Trust, Series 1 (QQQ) is on the page because Invesco QQQ: it holds the big tech and AI names. Linked by “ai” (AI and big tech) in this story
Also listed, Global X Fds (AIQ): Global X Artificial Intelligence & Technology ETF: it holds the big tech and AI names. Linked by “ai” (AI and big tech) in this story
Price levels for Invesco Qqq Trust, Series 1 (QQQ)
AIQ traded between 61.70 and 67.40 across 19 sessions. The latest close on file is 62.94. MSFT traded between 510.42 and 551.08 across 20 sessions. The latest close on file is 531.58. QQQ traded between 701.18 and 762.84 across 18 sessions. The latest close on file is 721.22.
What the saved facts support for Invesco Qqq Trust, Series 1 (QQQ)
46 out of 100
“AI stocks rally as SK Hynix jumps 11%, Micron and Sandisk gain 4%” scores 46 out of 100. The score uses 1 sources, and 6 linked companies.