The upcoming significant events that could most impact the cryptocurrency market are as follows:

1. Fed Meeting (January 27) – Interest rate decision in a slowing growth and decreasing inflation environment; the crypto market is sensitive to policy signals.
2. U.S. Senate Cryptocurrency Legislation Vote (January 27) – Could determine regulatory oversight and market structure, potentially increasing volatility.
3. SEC ETF Deadline (March 27) – Decision on 91 altcoin ETF applications; may expand access for institutional investors.
4. FOMC Meeting (March 18) – An important policy decision affecting risky assets like crypto.
5. UK Crypto Tax-Advantaged Accounts (April 6) – Crypto ETNs can be held in tax-exempt accounts, potentially increasing adoption.