NEW YORK, July 21, 2026, 19:07 EDT — With U.S. cash markets shut, after-hours trading continued.
Dell Technologies Inc. NYSE:DELL gained 5.7% to $427.10 in after-hours trading on Tuesday. The increase came after Super Micro Computer Inc. NASDAQ:SMCI reported a preliminary margin surprise.
The response is significant as Dell’s increase in AI-related activity has been accompanied by a decline in overall profit margins. The company reported a quarterly gross margin of 17.8%, down from 21.1%.
Super Micro projected a fourth-quarter gross margin of 15% to 17%, up from its earlier forecast of 8.2% to 8.4%. Revenue remained close to the lower boundary of the company’s $11 billion to $12.5 billion outlook. Incoming orders surpassed $60 billion.
The margin signal prompted a positive reaction from investors. Super Micro surged 18.4% in after-hours trading, with Dell up 5.7%.
This resulted in an uncommon difference in market value. An initial estimate shows Dell’s implied increase approaching $15.1 billion, roughly 4.6 times the $3.2 billion gain recorded by Super Micro.
| Company | Regular close | After-hours quote | Move | Preliminary implied value change |
|---|---|---|---|---|
| Dell Technologies Inc. NYSE:DELL | $404.15 | $427.10 | up 5.68% | increase of $15.1 billion |
| Super Micro Computer Inc. NASDAQ:SMCI | $25.50 | $30.19 | up 18.40% | gain of $3.2 billion |
| Hewlett Packard Enterprise Co. NYSE:HPE | $46.72 | $48.85 | up 4.56% | up $3.1 billion |
| HP Inc. NYSE:HPQ | $24.81 | $24.83 | up 0.09% | increase of $0.02 billion |
Prices were logged from 18:56 to 19:01 EDT. Value changes represent regular-close market caps adjusted by after-hours fluctuations, and are subject to revision.
HP’s marginal change provides an effective benchmark. HP competes with Dell in the PC market, whereas HPE specializes in enterprise server sales. The divide highlights server-related financials rather than indicating overall hardware market trends.
Dell shares fell 8.9% between Friday and Friday last week, with a 9.8% decline occurring on July 15. The stock slipped a further 3.7% on Monday before recovering 6.0% on Tuesday.
The Nasdaq gained 1.3% on Tuesday, supported by a rebound in AI stocks. Dell surpassed the index, outperforming it by almost five percentage points.
Dell’s results for May highlight its emphasis on profitability. Revenue from AI servers totaled $16.1 billion, surpassing the PC unit’s $14.6 billion.
Chief Operating Officer Jeff Clarke stated the AI opportunity “shows no signs of slowing.” Dell is projecting about $60 billion in AI-server revenue for fiscal 2027. Securities and Exchange Commission
However, Dell saw its overall gross margin decrease by 3.3 percentage points from a year earlier. Super Micro cited changes in customer base and product assortment as the main reasons for its anticipated recovery. On Tuesday, investors appeared to interpret these factors as relevant to Dell as well.
Alphabet Inc. NASDAQ:GOOGL is set to announce results following Wednesday’s closing bell. The company’s capital expenditure outlook for 2026 is currently forecast at $180 billion to $190 billion. Possible adjustments to this guidance could challenge expectations around AI-related infrastructure needs.
The Federal Reserve begins a two-day session on July 28. Dell will report its next earnings on September 3, so similar company updates are likely to influence trading in the short term.
Uncertainty persists. Super Micro’s numbers are still preliminary and yet to be audited. After-hours trading sees less liquidity, and Dell’s client demographics may not be the same.
Investors are watching to see if Dell can convert AI demand into sales with higher profit margins.
Related articles: NYSE:DELL
