5 Stocks to Buy Now In October 2025

If you believe AI isn’t just a fad, then go deep on the connectors, power-chips, lithography machines and custom silicon that’ll power it all.

The S&P 500 seems to have reached an ‘Extreme Greed’ phase with AI leading the charge. Here’s the hard truth: the AI wave isn’t just about the flashy models, the headlines, the “who’s going to replace OpenAI or DeepMind” chatter. If you believe that artificial intelligence is truly entering a multi-year infrastructure boom, then the real money begins where the hype ends: in the gears, the wiring, the power, the machines beneath the surface.

Think of it this way. You wouldn’t build a skyscraper and call the architects the only winners — you’d also pay attention to the steel beams, the wiring, the HVAC system, the cranes, the foundations. Same here. The AI models grabbing headlines need massive compute clusters, servers, data centres, chips, interconnects, power supplies, lithography machines, custom silicon. And those “hidden” segments are starting to matter just as much — maybe more — because they scale the entire ecosystem.

That’s why we are featuring five companies this month that are often one level down from the obvious names. They’re the “picks & shovels” players of the AI gold rush. They may not be quoted in every day’s news cycle, but if you’re playing the long-haul infrastructure theme, these are the gears turning behind the scenes. And yes — each of them is already showing momentum, and in each case, you’ll find a thesis that says the upside still justifies getting in now - if not already.

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The Players

1. APH – Amphenol Corporation

Thesis: The wiring and interconnects of the AI era.
Why it matters: In Q2 2025, Amphenol reported sales of US$5.7 billion, up ~57% year-over-year, and organic growth of ~41%. GAAP diluted EPS came in at US$0.86 (+110% YoY). The company noted growth driven by its “IT datacom” market, clearly tied to data-centre/infrastructure build-out.
Why it’s undervalued / breakout potential: With strong fundamentals, rising order book (book-to-bill ~0.98 in latest quarter) and under-the-radar essential infrastructure exposure, APH provides a way to play the AI wave without the hype-risk of being “the” model vendor.
Risk factors: With high growth already priced in, there’s less margin for error. Also, interconnects tend to follow capex cycles so macro/capex slowdowns could bite.