CLS Surges After Earnings: Can AI-Driven Growth Reverse the Downtrend?

Strong Earnings Trigger a Sharp After-Hours Rebound

Celestica (CLS) fell 5.14% to $246.65 on October 26, extending its recent decline. However, a strong third-quarter earnings report quickly changed market sentiment, triggering a sharp rebound in extended trading. By 4:26 a.m. ET on October 27, shares had climbed to approximately $287 in premarket trading, up 16.4% from the previous close.

Third-quarter revenue surged 83% year over year to $5.83 billion, while adjusted earnings per share jumped 109% to $3.30, both exceeding the upper end of management's previous guidance. Adjusted operating margin also reached a company record of 8.5%. These impressive results provided a fresh catalyst for a stock that had been under considerable selling pressure.

AI Infrastructure Demand Accelerates, Supporting an Ambitious 2027 Outlook

CLS's growth is primarily driven by expanding demand for cloud computing and AI data center infrastructure. Revenue from its Connectivity & Cloud Solutions (CCS) segment reached $4.87 billion in the third quarter, up 102% year over year. Within that segment, Hardware Platform Solutions generated approximately $2.3 billion in revenue, representing 70% growth and highlighting sustained investment in high-speed networking and computing infrastructure by major cloud providers.

More importantly, management delivered an exceptionally strong outlook for the next two years. CLS raised its 2026 revenue guidance to $21 billion and adjusted EPS forecast to $11.55. For 2027, the company projects revenue of $40 billion, representing approximately 90% annual growth, alongside adjusted EPS of $21.50 and an operating margin of 9%.

At a premarket share price of $287, CLS trades at approximately 24.8 times expected 2026 earnings and just 13.3 times projected 2027 earnings. Such a valuation appears attractive for a company anticipating earnings growth exceeding 80% over the coming year. However, this investment case depends heavily on the successful execution of management's ambitious 2027 targets.

Rapid expansion also creates financial challenges. CLS lowered its 2026 free cash flow guidance from $600 million to $460 million and expects capital expenditures of $1.5 billion to $2 billion in 2027. As capacity expansion and working capital requirements increase, the company's ability to convert revenue growth into sustainable cash flow will play a critical role in determining its valuation.

Technical Indicators Signal Oversold Conditions, but Resistance Remains

Technically, CLS has experienced a substantial correction, losing approximately 31% over the past month. Shares remain significantly below the 50-day moving average near $327 and the 200-day moving average around $333, indicating that the intermediate-term downtrend remains intact.

Momentum indicators also point to deeply oversold conditions. The 14-day Relative Strength Index (RSI) has fallen to approximately 26, while the MACD remains in negative territory, reflecting persistent selling pressure. The earnings-driven rebound could help restore short-term momentum, although a sustained trend reversal still requires further confirmation.

From a price-structure perspective, the $286–$300 range represents the first major resistance zone. Shares previously traded repeatedly within this area before accelerating lower, potentially leaving trapped investors looking to exit positions during a rebound. A decisive, high-volume breakout above $300 could open the door to further upside toward the longer-term moving average resistance between $327 and $333.

Trading Strategy: Watch for a Volume-Backed Breakout or Confirmed Pullback

For short-term traders, CLS's price action during the October 27 regular trading session will be particularly important. If shares hold above $286 and break through $300 on expanding volume, it would suggest that earnings-driven buying demand is absorbing overhead selling pressure, increasing the likelihood of a sustained rebound.

If the stock opens strongly but subsequently reverses, the $267–$273 area deserves close attention. This zone corresponds to important price levels established during recent trading sessions. A successful retest could help establish a new support structure. Conversely, a decline toward the $246 area would suggest that the earnings-driven recovery is losing momentum, significantly increasing downside risk.

The company's October 27 earnings conference call and Investor Day represent additional near-term catalysts. Further management commentary on AI customer demand, capacity expansion, and cash flow could determine whether investors continue raising their growth expectations for CLS.