The thesis, already tested.

During the most acute phase of the crisis, authorized participants withdrew from active creation and redemption across multiple fund categories. Balance-sheet constraints, hedging costs, and counterparty uncertainty made the arbitrage uneconomic. The mechanism did not break in the legal sense; it narrowed in the practical sense, exactly when the market most needed it to work.

Measurable ETF-NAV spreads opened across fixed-income, credit, and equity products — not isolated to metals funds, but structural to the ETF architecture itself. Holders who needed to sell during the window sold at discounts to the underlying. The price a share was worth and the price a share could be sold for became different numbers.

An estimated $1.6 billion of client funds had been commingled with firm assets to meet liquidity demands in the days before the filing. Segregation — a protection written into commodity-futures regulation specifically so that client money would be legally and operationally separate from the broker’s balance sheet — turned out to require institutional integrity to enforce. Where that integrity failed, the legal rule became a claim to be pursued in court.

Final recovery of client funds reached substantially all of the shortfall, but took multiple years through the bankruptcy trustee process. During that interval, clients were paper-claim holders of funds they had been told were protected. The protection was real as a statute. Access to the money required time, litigation, and a functioning recovery process.

Depositors had held their balances under the assumption that a bank deposit was a liquid, nominal, at-par holding — functionally equivalent to cash. The Cyprus episode demonstrated, within the European regulatory framework, that a large uninsured deposit is a claim on the solvency of the bank and, by extension, on the willingness of the state and its supranational partners to underwrite that solvency without imposing loss.

Depositors above the insurance threshold received haircuts in the 40–60% range, recovered in the form of equity stakes in the resolved institutions. Capital controls followed. For the affected balances, the at-par nominal claim became a partial, illiquid, time-delayed equity claim inside a single weekend.

Simultaneously, prime money-market funds experienced outflows that required the Federal Reserve to reopen the Money Market Mutual Fund Liquidity Facility — a program originally designed for the 2008 crisis — to prevent gating and forced sales. Investment-grade corporate bond markets effectively ceased two-way trading for a period. The issue was not credit; it was plumbing.

Central-bank intervention on an extraordinary scale restored function within weeks. Holders who needed liquidity in the wrong instrument at the wrong moment experienced execution at prices materially away from fair value. The architecture of the base of the financial system required active, coordinated, emergency support to keep settling.

At SVB, rising rates had impaired the mark-to-market value of long-duration fixed-income holdings while a concentrated depositor base withdrew faster than the balance sheet could be repositioned. At Credit Suisse, the Swiss Financial Market Supervisory Authority elected to zero out approximately $17 billion of Additional Tier 1 capital instruments while preserving some value for equity holders — an outcome that inverted the claim hierarchy most AT1 bondholders had operated under.

Uninsured depositor outcomes were made whole at the U.S. banks through an extraordinary systemic-risk determination. AT1 bondholders at Credit Suisse were not. The inversion of the expected claim hierarchy — where subordinated bondholders were zeroed while equity retained some recovery — is a material precedent for how paper-claim seniority can be redefined under stress, by regulatory action, inside days.