Wintermute has increased its Bitcoin sales, contributing to a slight dip in BTC prices as the market anticipates Japan's central bank rate decision. On-chain data indicates a rise in Bitcoin transfers to exchanges, suggesting potential selling pressure. The Bank of Japan is expected to raise interest rates, which could impact Bitcoin's market dominance. Additionally, Jane Street has reported heightened Bitcoin selling activity around U.S. market hours. Despite these developments, Bitcoin's price remains above $89,000, with $90,000 identified as a critical level for short-term market direction.