Wall Street Settles Into Ethereum

The world's biggest asset managers are putting real products on a public blockchain. BlackRock's BUIDL — an ordinary Treasury money-market fund, repackaged as blockchain tokens — has passed $2.5 billion. Franklin Templeton runs one. JPMorgan plugs into them. Aviva just got Irish approval for another. Roughly 44% of all tokenised traditional assets now sit on Ethereum, a network whose core promise is that nobody owns or controls it.

When tenants this large move in, do they follow the house rules, or do the rules start following them? That's not hypothetical — Ethereum has bent once before. In 2022, after US sanctions hit a privacy tool, a majority of the network's newly built blocks briefly complied with US sanctions lists, because the handful of companies assembling blocks chose caution. The community pushed back and the neutral share recovered. But the episode showed the pressure point is the judgment of those few firms assembling blocks, not the rules on paper.

Here's the counterweight, though. BlackRock settles on Ethereum precisely because nobody controls it. JPMorgan will never build on a BlackRock chain, or BlackRock on JPMorgan's; the only rail rivals share is one neither owns. It's the same logic that made the big banks run their own shared token through a jointly-owned utility. A tenant who bends Ethereum into their private compliance layer destroys the thing they moved in for — and they all keep private rails on the side as the exit.

So the honest answer to the title question is that Ethereum is nobody's chain. Every party at the table needs it to stay that way. The risk isn't capture by decree — it's drift. A thousand small accommodations in the plumbing, each individually reasonable. The thing to watch is who builds the blocks and what quietly gets filtered, not the press releases.