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Fractional Reserve

Definition

Fractional reserve is a banking system where banks hold only a portion of customer deposits as actual reserves. In traditional finance, this practice allows banks to lend out the majority of deposits, thereby creating new money and stimulating economic activity. In the digital asset space, discussions of fractional reserve often relate to centralized cryptocurrency exchanges or stablecoin issuers that may not hold 1:1 reserves for all user assets or issued tokens. This operational model introduces systemic risk if a significant portion of users attempt to withdraw funds simultaneously.