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On the Toronto Stock Exchange, a roughly US$25,000 investment has grown to over US$1 million — and that’s exactly what has happened with Celestica (TSX:CLS). The stock has delivered a cumulative return of more than 4,500% over five years, offering one of the best illustrations of the “picks and shovels” wealth-creation effect in the AI boom. The former contract electronics manufacturer has transformed itself into a core supplier of networking equipment and server infrastructure for AI data centers.
As of July 22, Celestica shares traded at US$335.50, giving the company a market capitalization of approximately US$39 billion. The stock has gained an astonishing 4,565% over the past five years, and despite a recent pullback, it still posted a 108% gain over the past 12 months. The fundamental driver behind this meteoric rise is a comprehensive business restructuring — shifting away from low-margin traditional contract manufacturing toward high-value-added hardware segments, including high-speed network switches, servers, and storage systems for AI data centers.
The dividends of this transformation are clearly reflected in the financial results. In the first quarter of 2026, revenue surged 53% year-over-year to US$4.05 billion, while adjusted earnings per share jumped 80% to US$2.16. The Connectivity and Cloud Solutions segment, which contributed US$3.24 billion in revenue — up 76% year-over-year — served as the primary growth engine. Riding this momentum, management raised its full-year 2026 revenue guidance to US$19 billion, with adjusted EPS expected to reach US$10.15.
What’s even more compelling is the company’s long-term growth visibility. Celestica recently entered into a strategic partnership with AMD to design and manufacture high-speed network switches for the “Helios” rack-scale AI platform, featuring advanced optics and liquid cooling technology, with production expected to ramp up in 2027. Additionally, in October 2025, the company launched the DS6000 series — a 1.6TbE data center switch built on Broadcom’s Tomahawk 6 chipset, offering double the throughput of existing 800G solutions and designed specifically for AI and machine learning clusters. These initiatives suggest that Celestica’s growth narrative is poised to extend into the next generation of AI hardware cycles.
However, the risks are not to be overlooked. As of July 22, the stock traded at roughly 42 times trailing earnings, significantly above the electronics industry average of 32 times. Customer concentration is also a concern, with a handful of large hyperscale clients accounting for a substantial portion of revenue. The stock has already pulled back from its June peak, falling about 9% over the past month — a reflection of market caution toward its elevated valuation. Should AI capital expenditures slow, key contracts be lost, or supply chain disruptions emerge, the downside pressure on this high-multiple stock could be particularly severe.
Looking back at Celestica’s wealth-creation journey, the “first wave” of millionaires succeeded by identifying the company’s transformation early and making concentrated bets. Going forward, wealth creation may require more patience — the continued expansion of AI infrastructure demand and a rapidly improving earnings outlook could still support this Canadian tech leader’s growth trajectory. For retail investors, however, a staggered buying approach may be the more prudent strategy in the high-volatility tech space.
