November 21st: The Chinese crypto analyst Banmuxia stated in a post that "Currently, Bitcoin has two key support levels for a potential trend reversal, which are $81,800 and $74,800 (based on Coinbase prices), and the range between these two prices. If the price drops to $74,800, it is very likely to mark the bottom of this bear market."

On November 21st, John Flood, a partner at Goldman Sachs, pointed out that the significant reversal of the US stock market on Thursday demonstrated that Nvidia's remarkable performance did not convey the anticipated "risk-off" signal to traders. Instead, it prompted them to hastily build defenses to avoid further losses. The US stock market opened strongly on Thursday morning but quickly took a turn for the worse. In the first hour of trading, the S&P 500 index surged by 1.9%. However, it reversed into a decline before 1 p.m. local time. This was a record intraday swing since the market turmoil in April, causing more than $2 trillion in market value to evaporate from the day's peak. The index closed below the 100-day moving average for the first time in months, and the VIX fear index jumped above 26. This violent reversal occurred against the backdrop of Nvidia's release of a historic financial report, driving traders crazy as they sought explanations. Various theories emerged. Some

On November 21st, based on Coinglass data, if Bitcoin drops beneath $84,000, the cumulative long liquidation intensity of mainstream CEX will amount to $1.185 billion. Conversely, if Bitcoin goes above $88,000, the cumulative short liquidation intensity of mainstream CEX will reach $278 million. BlockBeats Notes: The liquidation chart does not disclose the exact number of contracts to be liquidated or the precise value of the contracts being liquidated. The bars on the liquidation chart actually represent the significance of each liquidation cluster in relation to adjacent liquidation clusters, that is, the intensity. Consequently, the liquidation chart shows the extent to which the asset price will be impacted when it attains a certain level. A higher "liquidation bar" indicates that when the price reaches that level, a more intense reaction will be triggered due to a liquidity cascade.

On November 21st, based on HTX market data, Bitcoin dropped below $86,000 and is currently trading at $85,899, with a 24-hour decline of 6.9%.

November 21st. According to an official announcement, Binance is anticipated to halt the token deposit and withdrawal services of the Polygon (POL) network at 17:00 (UTC+8) on December 9, 2025, in order to support its network upgrade and hard fork. The project team will upgrade the network and carry out a hard fork at block height 80,084,800 (expected to be at 18:00 UTC+8 on December 9, 2025).