Restaking, or Pledging the Same Collateral Twice
They call it "shared security." It is finance's oldest move: posting an asset already pledged elsewhere. Stacking promises on the same collateral does not multiply safety, it correlates risk.
Crypto sold itself as the antidote to an opaque financial system where the same asset stood as surety for several creditors at once. That move has a name, rehypothecation, and it was one of the quiet gears of the 2008 crisis: when everyone believes they hold the collateral, no one truly does. Restaking, hailed as the big idea of Ethereum in 2026, places that move back at the center of the game, dressed in a fresh and reassuring vocabulary.
The appeal lies in its thrifty logic. A token already deposited to secure the chain is pledged again to back other services, the actively validated services, in exchange for extra yield. The same ether thus works on several fronts. EigenLayer, which dominates the sector with roughly 94 percent market share and about 19.7 billion dollars locked, has turned this into an industry. Yet nothing is created: a guarantee is reused, not doubled.
Security Does Not Stack, Risk Correlates
Here lies the central misunderstanding. Stacking commitments on a single asset adds up the promises, not the protections. A depositor signed up to five services faces five distinct penalty regimes, each able to draw from the same pool of ether. Let one of those services be hacked or badly governed, and the penalty, the slashing, fires at once across thousands of wallets bound by the same collateral.
This mechanism has an old name: correlated risk. As long as all goes well, the yields add up and the structure looks solid. The day a link gives way, failures do not cancel out, they spread. The Kelp DAO exploit already showed the danger was not theoretical, and the concentration on a handful of players turns a local incident into a systemic affair.
The problem climbs one floor higher. These restaked tokens return as collateral in decentralized finance, pledged to borrow, then reinvested. The same ether now secures the chain, several services and a loan at once. If its value slips, liquidations chain together and the fall feeds on itself, exactly like the margin spiral that crypto claimed to have abolished.
What remains is a question of honest language. Calling "shared security" what is in fact shared risk is no rhetorical detail, it is what lulls vigilance to sleep. The blockchain's original promise was transparent leverage, the ability to see who owes what to whom. By reinventing rehypothecation without uttering its name, restaking betrays less a technique than an intention.