Digital Asset Investors to Get New Option When Castello Brothers Add Fractional Domain Ownership to Smoothie.com Mix July 1st

For years now, people have been talking about the possibility of "fractional" domain ownership that would open the door to investment in top tier digital assets that would otherwise be beyond their financial reach. While the idea has obvious appeal on the surface, it has also raised a lot of questions, including who maintains control of the fractionalized asset, who decides when or if it will be sold to realize gains, how can shares (in this case, tokens) in the name be bought and sold?

Well, we are about to get answers to a lot of those questions and they will come from a decision made by two of the most widely-known and respected veterans of the traditional domain investment space - The Castello Brothers - Michael and David - who founded Castello Cities Internet Network in 1998 (20 years ago, Michael and David were profiled in a 2006 DNJournal Cover Story).

On Wednesday, July 1, their category-defining one-word .com domain - Smoothie.com - will transition to fractionalized ownership through the the groundbreaking Doma Protocol for domain tokenization developed by D3 in what will be the first major test of this ownership model. David Castello noted, "Smoothie.com is the exact-match category name for the global smoothie industry, a market valued in the tens of billions of dollars annually. The domain has long been recognized as one of the most valuable and memorable digital brands within the health, nutrition, beverage, and wellness sectors."

Michael Castello & David Castello

The Castello brothers believe tokenization of premium domains has the potential to fuel an expansion of the broader digital asset market - much in the at that real estate investment trusts (REITs) transformed access to commercial property ownership. "The Internet has created immense value over the last thirty years, but ownership of its most valuable locations has remained concentrated,” David said. “This is about opening access to a new generation of investors who understand that digital real estate is becoming just as important as physical real estate.”

The domain aftermarket has produced some jaw-dropping sales that underscored the immense value of top tier domains, including the $70 million sale of AI.com last year, as well as those of Chat.com ($15 million), Gold.com ($8.5 million), Rocket.com ($14 million). The Castello Brothers can point to their own multi-million dollar sales as well, including Whisky.com at $3.1 million. 

Those interested in the Smoothie.com offering and what it entails can register now, ahead of the July 1 public launch, by visiting the $SMOOTHIE.COM token listing page on Doma.  

As for the questions posted in the opening paragraph, to give you more information on what the entire process of tokenizing a domain involved for the Castello Brothers - and what investors can expect from a tokenized domain investment - we are putting together a deeper dive into this story that will run later this week.

(Posted June 29, 2026)   

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