比特币价格下跌到 815K 美元的 ETF 成本基准，特朗普伊朗评论导致股市下跌

Bitcoin's price has fallen to $81.5K, its ETF cost basis, as US stocks came under pressure from President Donald Trump's comments on Iran military action. The decline in Bitcoin's price is a significant development, and it has implications for the cryptocurrency's price and the broader financial markets. The ETF cost basis is a key level of support for Bitcoin's price, and a break below this level could lead to further declines. The comments from Trump have increased tensions in the Middle East and have led to a decline in risk appetite among investors. The decline in Bitcoin's price is a reflection of the increased uncertainty and risk aversion in the financial markets. The cryptocurrency's price is highly volatile, and it is subject to significant fluctuations in response to changes in market sentiment and geopolitical developments. The ETF cost basis is a key level to watch, and a break above or below this level could have significant implications for Bitcoin's price.