Finn
TDS Telecommunications · Fiber · Towers · Spectrum · Thesis updated August 11, 2026

Fiber momentum, tower risks, and a messy corporate structure

01 Running thesis

A cleaner company with a complicated cleanup

TDS is no longer the same company investors followed before 2025. After Array sold its wireless operations to T-Mobile, TDS became a holding company with two main pieces. It owns TDS Telecom, a fiber-focused broadband provider, and Array, a tower and spectrum owner that TDS still does not fully own.

The bull case is that the pieces are easier to value and executing well. TDS Telecom raised its 2026 fiber build guidance by 50,000 addresses in Q2, showing real momentum. Array also closed its $1.0 billion spectrum sale to Verizon in June 2026, removing a major closing risk and adding cash.

The bear case is that the cleanup is complicated and risky. TDS proposed to buy the remaining public shares of Array to simplify the structure. However, management refused to take questions on the proposal during the Q2 2026 call, which creates uncertainty. Array also formally stopped recognizing revenue from DISH due to unpaid bills.

Finn's view is cautious because a lot must go right. The fiber build is real and spectrum sales are closing, but the stock still carries transaction risk, tenant concentration, and a live DISH payment dispute.

Aug 2026TDS closed the $1.0 billion Verizon spectrum sale and raised fiber build guidance. However, management refused to comment on the Array buyout, and DISH revenue recognition formally ceased.
May 2026TDS set terms for its non-binding Array buyout proposal: 0.86 TDS shares for each Array share, assuming a $10.40 Array special dividend. The DISH dispute also became a real revenue issue.
Feb 2026Array closed the AT&T spectrum sale for $1.018 billion and paid a special dividend. That turned one major asset-sale catalyst into cash, though DISH payment concerns remained.
Nov 2025Array added smaller T-Mobile spectrum sale agreements, but the DISH dispute and possible regulatory delays made the timing of value realization less certain.
Aug 2025The sale of the wireless operations to T-Mobile closed on August 1, 2025. TDS became a simpler mix of fiber broadband, towers, and spectrum monetization.
02 Business model

Broadband cash and asset sales

TDS Telecom makes money by selling internet, video, voice, and related services to homes and businesses. The key push is fiber, which can offer faster internet and better service than older copper networks. Fiber growth is meant to offset declines in legacy voice, video, and copper services.

Array makes money by leasing space on its towers to wireless carriers and other tenants. As of early 2026, Array owned over 4,400 towers. DISH has failed to make required payments since December 2023, so Array formally stopped recognizing DISH revenue and removed them from the tenancy ratio.

Array also holds spectrum licenses. Spectrum is the right to use certain airwaves for wireless service. The company closed major sales to AT&T and Verizon, but other remaining spectrum, mainly C-Band, still needs a buyer or another plan.

The model breaks if fiber spending does not turn into profitable customers, if remaining spectrum sales stall, or if major tower tenants do not pay their rent.

03 Product portfolio

What TDS sells and owns

Growth engine

Residential fiber broadband

This is TDS Telecom's main growth push. In Q2 2026, the company raised its full-year fiber build guidance by 50,000 addresses.

Cash cow

Legacy broadband, video, and voice

These services still bring in revenue, but many parts are shrinking as customers move to faster options.

Steady

Commercial and wholesale wireline services

TDS Telecom sells business internet, voice, video, carrier access, and support-backed rural services.

Steady

Array tower leasing

Array leases tower space to carriers and other users. T-Mobile is now a key long-term tenant, which helps revenue but raises customer concentration risk.

Option

Spectrum licenses

Array holds licenses that can be sold or leased. Major sales to AT&T and Verizon have closed, but C-Band spectrum remains.

04 Business segments

Now a two-piece story

TDS Telecom81%modest
Array Digital Infrastructure17%growing fast
All Other and eliminations2%flat

Mix is based on Q1 2026 continuing operating revenue from TDS's filings. TDS Telecom was the largest revenue piece, while Array grew sharply after the tower agreement with T-Mobile.

05 Risk factors

What could go wrong

Array buyout stalls

High impact · Medium odds

TDS's proposal to buy the public Array shares is non-binding. Management refused to comment on the deal during the Q2 2026 call. A long or failed process could keep investors focused on structure instead of operating results.

We watchWatch for a definitive merger agreement, a rejected offer, or revised terms from the Array special committee.

DISH payment dispute becomes permanent

Medium impact · High odds

DISH Wireless has not made required payments since December 2023. Array has formally stopped recognizing DISH revenue and fully reserved 2025 balances. The dispute shows that tower cash flows are not risk-free.

We watchWatch for DISH payments, a settlement, court action, or further revenue impacts.

Fiber spend fails to pay back

High impact · Medium odds

TDS Telecom is spending heavily to build fiber and recently raised its build targets. If new fiber homes do not convert into profitable customers, growth could consume cash instead of creating value.

We watchWatch residential fiber net additions, broadband churn, and revenue per connection.

Tower tenant concentration

Medium impact · Medium odds

T-Mobile is now a major tenant for Array after the wireless sale and tower lease agreement. That gives Array a long-term anchor, but it also means one customer can have a large effect on tower revenue.

We watchWatch T-Mobile lease activity, interim site cancellations, and tower tenancy rates.
06 Quick answers

In one breath

What does TDS do after selling UScellular's wireless business?

TDS now owns TDS Telecom and most of Array Digital Infrastructure. TDS Telecom sells broadband, video, and voice services, while Array owns towers and spectrum licenses.

What is Array Digital Infrastructure?

Array is the renamed former UScellular entity after the wireless operations were sold. It now leases tower space, holds spectrum licenses, and manages related assets.

Why does the Array buyout proposal matter?

TDS already owns most of Array, but public investors still own a minority stake. Buying the rest could make the company easier to understand and manage, but the proposal is not binding.

Did the Verizon spectrum sale close?

Yes. The $1.0 billion spectrum sale to Verizon successfully closed in June 2026.

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