"Stocks like BitMine Immersion (BMNR) fell sharply today, what's behind the 45% drop and what should I do?"

The stock price of BitMine Immersion (BMNR) has indeed experienced a significant drop, primarily due to the following factors:

1. **Announcement of Stock Sale Agreement**: BMNR's stock price was negatively impacted by the announcement of a $20 billion stock sale agreement and a $2.5 billion private placement. These financing actions raised concerns among investors about share dilution and increased market supply pressure.
2. **CoinDesk Report**: A CoinDesk report suggested that BMNR's stock price could follow a similar pattern to Sharplink Gaming, which plummeted 90% after early investors sold their shares. This report likely contributed to the market's caution and subsequent sell-off in BMNR shares.
3. **Peter Thiel's Stake**: While Peter Thiel's investment in BMNR might signify confidence in the company's Ethereum-focused strategy, it may not immediately reassure investors about the stock's short-term prospects. The news of Thiel's stake might have led to a sell-off among investors who had already gained significant profits, contributing to the stock's decline.

Given these factors, it is important for investors to consider the following:

1. **Long-Term Strategy**: Evaluate whether the company's long-term strategy, including its Ethereum-focused treasury strategy, aligns with your investment vision and risk tolerance.
2. **Market Sentiment**: Keep an eye on market sentiment and any further developments regarding BMNR's stock sale agreement and private placement.
3. **Diversification**: Ensure that your investment portfolio is diversified to minimize the impact of any single stock's performance.
4. **Patience**: Be prepared for potential short-term volatility and consider a "buy and hold" approach if you believe in the company's long-term potential.

In conclusion, while the recent drop in BMNR's stock price presents a buying opportunity for those who believe in the company's long-term strategy, it also carries significant risk due to the factors mentioned above. Investors should carefully weigh these factors and consider their own investment goals and risk tolerance before making any decisions.