From ZeroHedge:
Central Banks' Central Bank Warns About Rehypothecation Threats
...The most recent, and perhaps most notable, observation on the topics of asset encumbrance, collateral and rehypothecation was none other than the BIS with its just released report titled appropriately enough, "Asset encumbrance, financial reform and the demand for collateral assets." In this report, variants of the word "rehypothecate" appear no less than 24 times. More importantly, the whole point of the paper is to serve as a warning, which means that slowly but surely the world's bankers are finally willing to expose in broad daylight (ironically), the true risks permeating the real financial system located deep in the shadows, where maturity, risk and collateral transformation all take place, however without the nuisance of deposits. Whether this is so they can abuse it all over again (most likely) or out of actual altruistic (unlikely) motivates, is unclear.HT: The Big Picture
However, for those still confused by what remains a very nebulous topic for most, here is what the BIS has to say on the key topic of rehypothecation and its assorted instances in modern finance.
And some of the more vocal warnings...MORERehypothecation and reuse of collateral assets
Rehypothecation refers to the right of financial intermediaries to sell, pledge, invest or perform transactions with client assets they hold; and it allows prime brokers and other financial intermediaries to obtain funding using their client collateral. Collateral reuse, in turn, usually covers a broader context where securities delivered in one transaction are used to collateralise another transaction, including the ability to reuse collateral through change in (temporary) ownership. Yet the terms rehypothecation and reuse of securities are often used interchangeably; they do not have distinct legal interpretations.
Certain types of collateral rehypothecation (and reuse) can play an important role in financial market functioning, increasing collateral velocity and potentially reducing transaction and liquidity costs. Rehypothecation decreases the (net) demand for collateral and the funding liquidity requirements of traders, since a given pool of collateral assets can be reused to support more than one transaction. This lowers the cost of trading, which is beneficial for market liquidity.
Securities lending-type transactions (including collateral swaps), which have been structured as collateralised loans, would not exist without rehypothecation. In the repo market, participants would not be able to cover short positions without the ability to reuse collateral. However, repos do not directly rehypothecate collateral because they are structured as a sale and repurchase transaction.
While certain types of rehypothecation can be beneficial to market functioning, if collateral collected to protect against the risk of counterparty default has been rehypothecated, then it may not be readily available in the event of a default. This, in turn, may increase system interconnectedness and procyclicality, and could amplify market stresses. Therefore, when collateral is rehypothecated, it is important to understand under what circumstances and the extent to which the rehypothecation has occurred; or in other words, how long the collateral chain is.
Rehypothecation and reuse of collateral assets
