Third, not only is fixed income more illiquid, but now most of these instruments – which have grown enormously in number, owing to the mushrooming issuance of private and public debts before and after the financial crisis – are held in open-ended funds that allow investors to exit overnight. Imagine a bank that invests in illiquid assets but allows depositors to redeem their cash overnight: if a run on these funds occurs, the need to sell the illiquid assets can push their price very low very fast, in what is effectively a fire sale.