Sam Zell's Equity Group Exits Cross-Border Xpress Bridge

Equity Group Investments, the Chicago-based private investment firm founded by the late real estate mogul Sam Zell, has exited its stake in Cross-Border Xpress — the pedestrian bridge that's been quietly moving millions of travelers between San Diego and Tijuana International Airport since 2015.

The firm announced the sale Monday without disclosing financial terms, buyers, or the exact return multiple. What we know: Equity Group was an early backer when CBX opened as North America's first private cross-border airport terminal, and it held the investment for roughly a decade — longer than the typical private equity hold period, which suggests either patience paid off or an exit was harder to engineer than anticipated.

Cross-Border Xpress isn't your standard infrastructure play. It's a 390-foot enclosed sky bridge connecting a terminal in San Diego's Otay Mesa neighborhood directly to Tijuana's General Abelardo L. Rodríguez International Airport. For $18 to $35 depending on booking method, travelers skip the San Ysidro border wait entirely — walking from US soil into Mexico's second-busiest airport in under five minutes.

The model works because Tijuana's airport offers something San Diego's doesn't: cheap flights to the rest of Mexico and Latin America. Aeromexico, Volaris, and Viva Aerobus operate dozens of daily departures that undercut US carriers by half or more. For cross-border commuters, dual nationals, and deal-hunting leisure travelers, CBX became the arbitrage opportunity that saves hours and hundreds of dollars per trip.

When CBX opened in December 2015, it wasn't obvious the concept would scale. The bridge required approvals from both US Customs and Border Protection and Mexican immigration authorities — a bureaucratic tightrope that took years to walk. The facility had to function as both a US port of entry and a departure point under Mexican jurisdiction, with separate immigration lanes, baggage handling protocols, and security screening on both sides.

Early ridership was modest. The terminal processed around 1.5 million passengers in its first full year of operation. But usage climbed steadily as awareness spread and airlines expanded service at Tijuana. By 2019, CBX was moving over 3 million passengers annually. The pandemic briefly cratered traffic in 2020, but recovery came fast — by 2023, the bridge was back above pre-COVID volumes and setting new records.

Equity Group's decision to exit now suggests confidence that the asset has reached maturity. Passenger volumes have stabilized at a level that makes the bridge a cash-generating infrastructure asset rather than a speculative growth story. That's the kind of profile that appeals to infrastructure funds, pension investors, or strategic buyers looking for predictable toll-like revenue from cross-border traffic.

The firm's statement Monday emphasized that CBX "has successfully established itself as a vital transportation link" and that Equity Group "is proud to have supported this pioneering project." Translation: mission accomplished, time to recycle capital.

To understand why this exit matters, you need to understand what CBX is — and what it isn't. It's not an airport. It's not a border crossing in the traditional sense. It's a private toll bridge with embedded immigration checkpoints that happens to connect two countries.

Here's how it works: US-side passengers enter the San Diego terminal with a boarding pass for a flight departing Tijuana. They pay the CBX crossing fee (booked online in advance or at a kiosk), walk through US exit controls, cross the bridge, clear Mexican immigration, and emerge directly inside Tijuana airport's departures hall. On the return, Mexican passengers check in at Tijuana, cross the bridge, clear US Customs and Border Protection, and step out into San Diego — no vehicle, no wait at San Ysidro, no variable border queues.

The terminal operates 24/7 and processes both US and Mexican nationals along with third-country travelers holding appropriate visas. It's become especially popular with business travelers, Southern California's Mexican diaspora, and tourists booking cheaper Mexican carrier fares to Guadalajara, Mexico City, Cancún, and points south.

The business model is straightforward: CBX collects a fixed fee per crossing, plus ancillary revenue from parking, retail concessions, and VIP services. Variable costs are low once the facility is built — mostly staffing, maintenance, and regulatory compliance. It's the kind of asset that generates steady EBITDA margins once passenger volumes hit critical mass, which they clearly have.

Tijuana International Airport handled over 10 million passengers in 2023, making it the fourth-busiest airport in Mexico. San Diego International, by comparison, moved 26 million. But Tijuana's growth trajectory is steeper — and its route network to Latin America is far denser. For travelers heading south of the border, Tijuana often offers double the flight frequency at half the price of San Diego departures.

Equity Group's decision to sell now — rather than hold through another cycle or take the asset public — tells you something about how infrastructure investors are thinking about US-Mexico border assets in 2026.

First, there's validation. CBX proved that private cross-border infrastructure can work when it solves a genuine friction point. The bridge didn't just add convenience — it unlocked latent demand from travelers who wanted access to Tijuana's cheaper flights but didn't want to deal with the San Ysidro crossing. That demand turned out to be large, durable, and willing to pay a premium for speed.

Second, the exit timing matters. With passenger volumes stabilized above 3.5 million annually and no major capacity constraints on the horizon, the growth story is largely told. The next buyer isn't buying a speculative bet — they're buying a mature toll asset with a decade of operating history. That's a different buyer profile, likely paying a different multiple.

Third, there's a broader question about replicability. CBX's success has sparked conversations about similar cross-border pedestrian terminals elsewhere along the US-Mexico border — particularly at other binational metro areas like El Paso-Juárez or Nogales. But replication is harder than it looks. Tijuana's airport is uniquely positioned right on the border, and its flight network to the rest of Mexico and Latin America is unmatched. Not every border city has that combination.

Still, the concept has proven that when geography, regulation, and demand align, private capital can build infrastructure that governments didn't. And that's worth more than the press release suggests.

Equity Group hasn't named the buyer, and it's possible the sale hasn't closed yet or involves a confidentiality provision. But the likely acquirer profile is narrow. Infrastructure funds with a toll-road or transportation focus — think Macquarie, Brookfield, or similar — would see CBX as a natural fit. Pension funds looking for inflation-protected infrastructure returns could also be in the mix. A strategic buyer like a Mexican airport operator or a US-based logistics company with cross-border exposure is possible but less likely.

What's less likely: a pure private equity buyer. CBX isn't a growth equity story anymore — it's a yield story. That narrows the field considerably.

This exit is consistent with Equity Group's long-standing strategy of backing unconventional real estate and infrastructure plays that require patience and operational creativity. Under Sam Zell's leadership — he passed away in 2023 — the firm made its name on contrarian bets: distressed real estate, mobile home parks, and opportunistic infrastructure.

CBX fits that mold. When Equity Group invested in the mid-2010s, a private cross-border pedestrian terminal was unproven. The regulatory complexity was high. The payoff timeline was uncertain. But the thesis was sound: if you can shave hours off the border-crossing experience and unlock cheaper flights, people will pay for it.

The firm still holds a diverse portfolio of real estate, operating companies, and infrastructure assets. Recent investments have spanned everything from multifamily housing to logistics facilities to energy infrastructure. But the CBX exit suggests Equity Group is actively managing the portfolio — taking chips off the table when assets mature rather than holding indefinitely.

While Equity Group didn't release financials, industry observers estimate CBX's annual revenue in the range of $80 million to $100 million based on passenger volumes and per-crossing fees. Assuming a $25 average fare and 3.8 million annual passengers, gross crossing revenue alone would hit $95 million. Add parking, concessions, and premium services, and the top line likely clears nine figures.

Operating margins for toll-based infrastructure typically run between 50% and 70% after the initial payback period. If CBX is performing at that level, EBITDA could be in the $50 million to $70 million range — respectable for a mid-market infrastructure asset.

If Equity Group sold at a 12x to 15x EBITDA multiple — standard for mature infrastructure — the exit valuation could be in the $800 million to $1 billion range. That's speculative, but it's consistent with how these assets trade when they've reached steady state.

The firm's return on invested capital depends on how much it put in at the start and whether it took any interim distributions. But a decade-long hold suggests the IRR was good enough to wait for the right exit — not spectacular enough to sell early.

For travelers, nothing changes. The new owner — whoever they are — will keep the bridge running as-is. There's no operational overhaul needed, no rebranding likely, no service disruptions expected. CBX's value is in its regulatory approvals, its physical infrastructure, and its proven traffic flow. Those don't change with ownership.

The more interesting question is whether the new owner tries to expand. CBX has explored adding a second crossing lane or increasing capacity during peak hours, but hasn't pulled the trigger. There's also the possibility of dynamic pricing — charging more during high-demand periods like holidays or weekends. Airlines do it. Toll roads do it. Why not a cross-border bridge?

Then there's the question of competition — or lack thereof. CBX is the only facility of its kind on the US-Mexico border. If the model proves lucrative enough, could another investor try to replicate it elsewhere? Maybe. But the regulatory and geographic constraints are steep. For now, CBX remains singular.

The bigger wildcard is policy. Changes in US or Mexican immigration enforcement, border wait times, or visa regimes could all affect traffic through CBX. So far, the bridge has weathered multiple presidential administrations on both sides without major disruption. But cross-border infrastructure is always one executive order away from headwinds.

Equity Group's sale of Cross-Border Xpress is more than a single transaction. It's a proof point that private infrastructure investors can build and exit unconventional assets that sit at the intersection of real estate, transportation, and cross-border mobility.

There aren't many comps for CBX. It's not a toll road. It's not a standalone airport terminal. It's not a traditional border crossing. It's a privately financed, binational pedestrian bridge with embedded customs facilities. That category didn't exist before 2015. Now it does — and it works.

The exit also signals that patient capital still finds homes in infrastructure, even when payback periods stretch beyond the standard PE timeline. Equity Group held CBX for a decade — longer than most buyout funds would tolerate. That patience was rewarded with a mature, cash-flowing asset that found a buyer at what was likely a solid multiple.

For other investors eyeing cross-border infrastructure — whether in North America, Europe, or elsewhere — CBX offers a template. Find a friction point where geography and policy create inefficiency. Build infrastructure that solves it. Get the regulatory approvals. Wait for traffic to stabilize. Then sell to someone who wants the yield, not the risk.