# Idiosyncratic fCash Idiosyncratic fCash refers to an fCash asset whose maturity does not correspond to an active liquidity pool. After a quarterly roll, an fCash asset whose maturity previously corresponded to an active liquidity pool can become idiosyncratic. For example, consider a user who took out a loan from the one-year liquidity pool. At the time of the next quarterly roll, that user's fCash would mature in nine months, and the nine-month liquidity pool would reset after the quarterly roll to be a new one-year liquidity pool. This would result in the user's nine-month fCash becoming idiosyncratic. ### Trading Idiosyncratic fCash Idiosyncratic fCash can't be traded on one of Notional's on-chain liquidity pools because an idiosyncratic fCash asset's maturity does not match an active maturity. Notional supports trading idiosyncratic fCash via submission of a transaction that is signed by both the sender and receiver of the fCash asset. Idiosyncratic fCash liquidity can be made available via external orderbook or RFQ-style infrastructure like 0x, but this functionality is not yet active. For the user who holds nine-month fCash, this means that currently they would not be able to sell their fCash on a Notional liquidity pool for a period of three months until it became six-month fCash and could be traded on the six-month liquidity pool. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.notional.finance/governance/active-maturities/idiosyncratic-fcash.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.