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Prysmian Lands $6.3 Billion Cable Deal with Molex as AI Data Center Boom Accelerates

Prysmian Lands $6.3 Billion Cable Deal with Molex as AI Data Center Boom Accelerates
Stocks · 2026
Photo · Eleanor Whitfield for Daily Digest Invest
By Eleanor Whitfield Markets Editor-in-Chief Jul 20, 2026 3 min read

Italian cable giant Prysmian has secured a major contract worth €5.5 billion ($6.3 billion) to supply optical cables to US electronics manufacturer Molex for data center projects. The deal underscores the accelerating demand for physical infrastructure needed to power artificial intelligence systems.

What the Deal Means

Prysmian is one of only three companies manufacturing fiber and optical cables in the United States, giving it a strategic advantage as tech firms race to build the data centers required for AI workloads. The Molex contract will see Prysmian provide the high-speed cabling that connects servers and storage systems within these facilities.

Optical cables are critical for data centers because they transmit data using light, offering much higher speeds and lower latency than traditional copper cables. As AI models grow more complex, the need for faster data transfer between thousands of chips becomes essential.

AI Infrastructure Spending Surges

The deal comes amid a wave of investment in data center construction. Major tech companies like Microsoft, Amazon, and Google have announced billions in capital expenditure to build out AI computing capacity. This has created a ripple effect across the supply chain, benefiting companies that provide the physical building blocks of these facilities.

Prysmian's position as a domestic US manufacturer is particularly valuable given supply chain concerns and trade policies that favor local production. The company has been expanding its US manufacturing footprint to meet growing demand.

However, investors remain cautious about whether the massive spending on AI infrastructure will ultimately generate sufficient returns. The question of monetization looms large: will the revenue from AI services justify the enormous upfront costs of building data centers?

What It Means for Investors

For everyday investors, the Prysmian deal highlights a key theme in the AI story: the infrastructure buildout is real and generating concrete business for suppliers. Companies providing the physical components of AI—cables, cooling systems, power equipment—are seeing tangible demand.

This contrasts with the more speculative side of AI, where some companies are still figuring out how to turn the technology into sustainable profits. The Meta weighs $10 billion AI compute lease deal with Anthropic and DeepSeek's $7 billion fundraise show that capital is flowing freely into AI, but the payoff remains uncertain.

Prysmian's deal also underscores the importance of US manufacturing capacity. With only three domestic fiber cable producers, the company enjoys pricing power and a competitive moat. This is a key factor for investors evaluating companies in the AI supply chain.

Data center cooling is another area seeing increased investment. Oppenheimer upgraded Ecolab on AI-driven data center cooling demand, highlighting how the infrastructure theme extends beyond just cabling.

Broader Market Context

The AI infrastructure buildout is part of a larger trend of digital transformation that has been accelerating for years. Cloud computing, streaming, and now AI are all driving demand for data centers. According to industry estimates, global data center capacity is expected to grow at a double-digit rate annually for the foreseeable future.

Prysmian's deal with Molex is a concrete example of how this demand translates into real contracts. For investors, it provides a lens through which to evaluate other companies in the space. The key question remains: will the AI boom generate enough revenue to justify the massive capital spending?

As CoreWeave's Q2 results hinge on data center power activation, the market is watching closely for signs that AI infrastructure is being utilized profitably. Prysmian's deal is a positive signal for the supply chain, but the ultimate test will be whether end-users can turn AI into a sustainable business.

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