Bitcoin last traded below $90,000 — eventually tumbling to as low as $74,400 in April — after President Donald Trump upended financial markets worldwide with his initial plan for trade tariffs. The reversal comes amid rising economic headwinds, including renewed concerns over interest-rate policy and stretched valuations across speculative markets. With traders reassessing the likelihood of a Federal Reserve interest-rate cut in December and stock markets slipping from recent highs, risk appetite has soured — leaving Bitcoin vulnerable to further downside.