Microsoft and Amazon combined to see a $424 billion market-cap boost — and these factors show why
Published . Updated .
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Microsoft and Amazon shares rose sharply on Wednesday, with one portfolio manager noting that a cloud-supply crunch could help the companies raise prices.
Directly affected
Indirectly affected
- XLY Consumer Discretionary Select Sector SPDR+5.7% 30d
Consumer Discretionary Select Sector SPDR holds the consumer sector that Amazon.com belongs to, so it often moves with news about it.
- CPNG Coupang+6.7% 30d
Coupang is a peer of Amazon.com in catalog and mail-order houses; rivals often move on the same news.
- CDW Cdw-0.4% 30d
Cdw is a peer of Amazon.com in catalog and mail-order houses; rivals often move on the same news.
- W Wayfair
Wayfair is a peer of Amazon.com in catalog and mail-order houses; rivals often move on the same news.
- CHWY Chewy+1.9% 30d
Chewy is a peer of Amazon.com in catalog and mail-order houses; rivals often move on the same news.
- NSIT Insight Enterprises+5.5% 30d
Insight Enterprises is a peer of Amazon.com in catalog and mail-order houses; rivals often move on the same news.
- XLK Technology Select Sector SPDR+9.2% 14d
Technology Select Sector SPDR holds the technology sector that Microsoft belongs to, so it often moves with news about it.
- PLTR Palantir Technologies-8.6% 30d
Palantir Technologies is a peer of Microsoft in prepackaged software; rivals often move on the same news.
Price reaction, T-5 to T+3
| Ticker | T-5 | T-3 | T-1 | T0 | T+1 | T+2 | T+3 |
|---|---|---|---|---|---|---|---|
| MSFT | -4.62% | -8.82% | base | after close | after close | after close | after close |
| AMZN | -8.41% | -7.66% | base | after close | after close | after close | after close |
| XLY | -5.04% | -3.43% | base | after close | after close | after close | after close |
| CPNG | -14.52% | -13.78% | base | after close | after close | after close | after close |
| CDW | -2.18% | -10.84% | base | after close | after close | after close | after close |
| W | -2.63% | -8.39% | base | after close | after close | after close | after close |
| CHWY | -10.90% | -4.79% | base | after close | after close | after close | after close |
| NSIT | +1.72% | -4.89% | base | after close | after close | after close | after close |
| XLK | +6.96% | -1.25% | base | after close | after close | after close | after close |
| PLTR | +14.40% | +3.94% | 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.
Microsoft and Amazon shares rose sharply on Wednesday, with one portfolio manager noting that a cloud-supply crunch could help the companies raise prices.
Source: MarketWatch
This story
| Company | When | Move | Status |
|---|---|---|---|
| AMZN | three days earlier | -7.66% | final price |
| AMZN | five days earlier | -8.41% | final price |
| CDW | three days earlier | -10.84% | final price |
| CDW | five days earlier | -2.18% | final price |
| CHWY | three days earlier | -4.79% | final price |
| CHWY | five days earlier | -10.90% | final price |
| CPNG | three days earlier | -13.78% | final price |
| CPNG | five days earlier | -14.52% | final price |
| MSFT | three days earlier | -8.82% | final price |
| MSFT | five days earlier | -4.62% | final price |
| NSIT | three days earlier | -4.89% | final price |
| NSIT | five days earlier | +1.72% | final price |
| PLTR | three days earlier | +3.94% | final price |
| PLTR | five days earlier | +14.40% | final price |
| W | three days earlier | -8.39% | final price |
| W | five days earlier | -2.63% | final price |
| XLK | three days earlier | -1.25% | final price |
| XLK | five days earlier | +6.96% | final price |
| XLY | three days earlier | -3.43% | final price |
| XLY | five days earlier | -5.04% | final price |
Trades by members of Congress and officials in the stocks in this story
- Rep. Pete Sessions sold Microsoft (MSFT) (held by a spouse), worth $250,001 - $500,000 on 2 Oct 2026. That is 33 days before publication. Filed 27 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 35 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 37 days before publication. Filed 2 Oct 2026. View the filing.
- Rep. Pete Sessions sold Amazon Com (AMZN), worth $15,001 - $50,000 on 27 Oct 2026. That is 8 days before publication. Filed 27 Oct 2026. View the filing.
- Rep. Pete Sessions sold Amazon Com (AMZN) (held by a spouse), worth $100,001 - $250,000 on 2 Oct 2026. That is 33 days before publication. Filed 27 Oct 2026. View the filing.
- Rep. Michael T. McCaul sold Amazon Com (AMZN) (held by a spouse), worth $1,001 - $15,000 on 28 Aug 2026. That is 68 days before publication. Filed 14 Oct 2026. View the filing.
- Donald J Trump, an executive branch official, bought Coupang (CPNG), worth $15,001 - $50,000 on 28 Aug 2026. That is 68 days before publication. Filed 8 Oct 2026. View the filing.
- Donald J Trump, an executive branch official, bought Coupang (CPNG), worth $1,001 - $15,000 on 10 Aug 2026. That is 86 days before publication. Filed 8 Oct 2026. View the filing.
- Donald J Trump, an executive branch official, sold CDW, worth $500,001 - $1,000,000 on 21 Aug 2026. That is 75 days before publication. Filed 8 Oct 2026. View the filing.
- Rep. Gilbert Cisneros bought CDW, worth $1,001 - $15,000 on 19 Aug 2026. That is 77 days before publication. Filed 10 Sep 2026. View the filing.
- Donald J Trump, an executive branch official, bought Palantir Technologies (PLTR), worth $1,001 - $15,000 on 24 Aug 2026. That is 72 days before publication. Filed 8 Oct 2026. View the filing.
- Donald J Trump, an executive branch official, bought Palantir Technologies (PLTR), worth $50,001 - $100,000 on 17 Aug 2026. That is 79 days before publication. Filed 8 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
“Microsoft and Amazon combined to see a $424 billion market-cap boost — and these factors show why” scores 12 out of 100. The score uses 1 sources.