$BTC

To buy Bitcoin (BTC) for a 20-year investment, adopt a disciplined dollar-cost averaging (DCA) strategy. Allocate a fixed monthly amount, e.g., $100-$500, to purchase BTC regardless of price fluctuations, reducing the impact of volatility. Use reputable, regulated exchanges like Coinbase or Binance, ensuring secure storage in a hardware wallet (e.g., Ledger or Trezor) to protect against hacks. Diversify by not exceeding 5-10% of your portfolio in BTC to manage risk. Stay informed about market trends and regulatory changes via reliable sources like CoinDesk. Rebalance annually to maintain your target allocation. Avoid emotional trading, focus on long-term growth, and consult a financial advisor for personalized guidance.