According to Crypto Rover, over-the-counter (OTC) crypto desk balances have fallen sharply from 203,000 to 115,000 since January 2024, representing a 43% decrease (source: Crypto Rover, Twitter, May 28, 2025). This rapid decline signals a tightening supply for large-volume Bitcoin transactions, which may trigger a supply shock and impact spot market prices. Traders should closely monitor OTC desk flows, as reduced liquidity often leads to increased volatility and potential price surges in the broader crypto market.