Rumors of Bitcoin ETF approval have resurfaced, often sparking price volatility. Historically, such speculation drives short-term BTC price surges—e.g., a 5-10% jump in hours—as traders anticipate institutional inflows. On-chain data shows institutions currently hold ~20% of BTC supply, with inflows rising 15% monthly when rumors peak. However, approvals often lead to “sell-the-news” events, as seen in January 2024, when BTC dipped 8% post-ETF launch despite $1B initial inflows. Without sustained institutional buying—potentially $5B+ over months—price gains may fade. Market sentiment remains key, but concrete data on new inflows is still unclear.