Factors influencing the recent BTC decline: 1. MSCI removes companies holding Bitcoin as a reserve asset from its global indices. Index provider MSCI announced that, effective November 30th, it will remove companies holding Bitcoin as a reserve asset (including MicroStrategy and Metaplanet) from its global equity indices. This move is expected to trigger up to $2.8 billion in passive capital outflows and may restrict these companies' financing models. 2. Tech stocks sell off, dragging down the cryptocurrency market. Reports indicate that Nvidia's board is preparing to oust CEO Jensen Huang. This news caused a sharp drop in tech stocks, impacting various risk assets and leading to a synchronized decline in both the stock and cryptocurrency markets. 3. Bitcoin Core fixes Tor network vulnerability. Developers disclosed and fixed a security vulnerability in Bitcoin Core; previously, these vulnerabilities had exposed thousands of nodes connected via the Tor network to potential interference risks. 4. Progress on the US cryptocurrency market structure bill stalls. Following the midterm elections, progress on Senate bills aimed at providing regulatory clarity stalled, making the prospect of achieving federal-level regulatory clarity in the near future increasingly bleak.