Celestica Stock Surges After Hours: Revenue Jumps 83% to $5.83 Billion and a $40 Billion 2027 Target Stuns Wall Street

The short answer: Celestica (NYSE: CLS) stock surged in after-hours trading on Monday, October 26, 2026, after the AI infrastructure company reported third-quarter revenue up 83% to a record $5.83 billion, adjusted earnings that more than doubled to $3.30 a share, and a 2027 revenue outlook of $40 billion — well above what Wall Street expected.

What happened

Celestica reported its third-quarter results after the close on Monday for the period ended September 30, 2026. Revenue rose to $5.83 billion from $3.19 billion a year earlier, beating analyst expectations of about $5.49 billion, according to Dow Jones Newswires via Morningstar and Zacks. Adjusted earnings were $3.30 a share, up from $1.58 a year ago and ahead of consensus estimates around $2.99 to $3.02 a share. On a GAAP basis, Celestica earned $397.2 million, or $3.26 a share, compared with $267.8 million, or $2.31 a share, a year earlier. Adjusted operating margin expanded to 8.5%, from 7.6% in the same quarter last year.

The stock had a dramatic reversal. Shares fell 5.14% in regular trading to close at $246.65, down $13.36, before the results landed. In after-hours trading the shares first climbed about 9% and then extended the move, with Morningstar reporting a surge of 17% to $288.07 in extended trading. That swing — down sharply during the day, sharply higher after the print — is why CLS became one of the most talked-about earnings movers of the evening.

Why it is blowing up

The headline numbers were strong, but the outlook is what changed the conversation. Celestica lifted its full-year 2026 revenue forecast to $21 billion, up $500 million from its previous outlook, and raised its adjusted earnings guidance to $11.55 a share. Analysts polled by FactSet had expected about $20.69 billion in revenue and $11.21 a share for the year.

Then came 2027. Celestica projected revenue of $40 billion and adjusted earnings of $21.50 a share for 2027. That compares with analyst forecasts of about $36.07 billion in revenue and $19.70 a share, according to Morningstar. In other words, management is not guiding for a one-quarter spike — it is guiding for growth to accelerate again next year, driven by demand for AI infrastructure from hyperscalers and frontier AI labs.

Chief Executive Rob Mionis said Celestica is well-positioned to support leading hyperscalers and frontier AI labs through what he called the ongoing AI infrastructure supercycle, adding that the demand environment remains very robust and that customer demand forecasts are meaningfully higher for 2028. For investors who spent last week worrying whether AI spending would slow, a supplier guiding to $40 billion was a direct counter-argument — and it arrived on the same day semiconductors led the broader market higher.

Key facts

Revenue: $5.83 billion in Q3, up 83% year over year, versus about $5.49 billion expected.

Earnings: Adjusted EPS of $3.30, up 109% from $1.58 a year ago; GAAP EPS of $3.26.

Stock move: Closed down 5.14% at $246.65, then surged in after-hours trading — Morningstar reported +17% to $288.07 in extended trading.

2026 outlook raised: Revenue of $21 billion and adjusted EPS of $11.55, both above prior guidance and analyst expectations.

2027 outlook: Revenue of $40 billion and adjusted EPS of $21.50, versus analyst forecasts near $36.07 billion and $19.70.

Fourth-quarter guide: Revenue of $6.275 billion to $6.575 billion and adjusted EPS of $3.37 to $3.57.

One watch item: Celestica lowered its 2026 free cash flow forecast from $600 million to $460 million, citing working-capital investments needed to support future growth, according to TipRanks coverage of the results. Rapid growth is not free — the company is spending ahead of demand.

What is next

Celestica holds its Investor and Analyst Day on Tuesday, October 27, where management is expected to face questions about how durable the $40 billion target is, how much capital spending the build-out requires, and how concentrated its largest customers are. The Q4 guide will also be tested in the weeks ahead as other AI infrastructure names report during one of the busiest earnings weeks of the season, alongside Alphabet, Microsoft and Amazon and a Federal Reserve decision on Wednesday.

For now, the facts are simple: Celestica beat, raised 2026 guidance, and issued a 2027 outlook well above consensus. This post reports what happened; it is not a recommendation to buy, sell or hold any security.

Sources

Morningstar / Dow Jones Newswires — Celestica lifts outlook, sees accelerating growth through 2027

Zacks — Celestica Q3 earnings and revenues top estimates

MoneyCheck — Celestica stock rallies after hours on record $5.83B quarterly revenue

TipRanks — Celestica stock takes off after hours

FAQ

Why did Celestica stock surge after hours on October 26, 2026?

Because its Q3 results beat expectations — revenue up 83% to $5.83 billion and adjusted EPS of $3.30 — and it raised its outlook, including a $40 billion revenue target for 2027.

How much did Celestica stock move?

Shares closed down 5.14% at $246.65 in regular trading, then surged in extended trading, with Morningstar reporting a 17% rise to $288.07 after hours.

What is Celestica's 2027 outlook?

Celestica guided to $40 billion in revenue and $21.50 in adjusted earnings per share for 2027, above analyst forecasts of about $36.07 billion and $19.70.

When will investors hear more from Celestica?

At its Investor and Analyst Day on Tuesday, October 27, 2026, where management is expected to discuss the outlook and AI infrastructure demand in more detail.