To determine why Bitcoin is bearish today, you would need to review recent news and market analysis. Common reasons for a bearish trend include:

1. **Regulatory News:** Announcements or actions from governments regarding cryptocurrency regulation.

2. **Market Sentiment:** General market sentiment or investor concerns about the economy can impact prices.

3. **Technical Factors:** Technical indicators and trading patterns can also drive price movements.

4. **Macro-Economic Events:** Broader economic events, such as interest rate changes or geopolitical tensions, might influence market behavior.

Checking recent news articles, financial analyses, and updates from cryptocurrency experts can provide insights into the specific reasons for today's bearish trend.

$BTC