TODAYMEMORY +5.3%SEMI EQUIPMENT +5.3%DC / NEOCLOUDS +5.3%OPTICAL +5.2%SEMI MATERIALS +4.9%PACKAGING +4.5%AI SOFTWARE -2.5%POWER GEN -3.5%
Sector

Connectors & Cables

Unglamorous physical plumbing — and every AI server rack is full of it.

As of close, Sep 18, 2026
Today▼ 0.2%
1 Month▼ 5.6%
1 Year▲ 25%
Tracked4 names

The companies in this sector

Sorted by one-month move. “Vs target” compares the current price with the mean analyst price target — a figure from analysts, not from us.

CompanyPrice · todayThe latest closing price, and how far it moved from the previous close in dollars and percent.1 MonthPrice change since the last close on or before the same date one month ago — a calendar month, not 21 trading days.1 YearPrice change since the last close on or before the same date one year ago.Vs targetHow far the price sits below the average of analysts’ published 12-month price targets. Negative means the price has already risen past that average.Analysts’ figures, not ours. Not a forecast we make or endorse.
TELTE Connectivity$205.42-$1.18 (-0.57%)▲ 0.6%▼ 4%▲ 21%$215 … $306
APHAmphenol$77.55-$0.82 (-1.05%)▼ 2.8%▲ 28%▲ 28%$85 … $115
GLWCorning$150.13+$2.33 (+1.58%)▼ 5.9%▲ 90%▲ 28%$129 … $238
BDCBelden$110.92-$1.02 (-0.91%)▼ 14.2%▼ 15%▲ 41%$145 … $170

As of close, Sep 18, 2026 · prices from Yahoo Finance

Data: daily close · Reporting, not recommendations · Not financial advice.

What this sector actually does

Every rack is full of physical connections — power delivery, high-speed cable assemblies, backplane connectors. Unglamorous, but present in enormous quantity and increasingly demanding as data rates rise.

The appeal is breadth rather than drama: these suppliers sell into many end markets, so AI is additive rather than existential. It also means their results dilute AI exposure with slower-growing businesses.

What moves it: server build rates, connector content per rack, and design wins on new platforms.

Common questions

Why do connectors get harder as speeds increase?

At high frequencies a connector behaves less like a wire and more like a component that can distort the signal. Maintaining integrity requires tighter tolerances and better materials.

What does "content per rack" mean?

The dollar value of a supplier's parts inside a single rack. Denser AI systems need more connections, so content per rack can rise even when the number of racks does not.

Are these companies pure AI plays?

Generally no. Most sell across industrial, automotive and communications markets, so AI is one contributor to results rather than the whole story.

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