[Analyst: Bitcoin's key support level is at $81,700, resistance near $101,000] BlockBeats News, January 18, CryptoQuant analyst Darkfost stated, 'Bitcoin's next major challenge is reclaiming the cost basis of the first batch of long-term holders (holding for 6 to 12 months), currently around $101,000. The cost basis for long-term holders who have held for 12 to 18 months is approximately $81,700, which constitutes an important support zone. If Bitcoin falls back to this area, these holders are likely to defend their average purchase price. Investors who bought near the January 2025 peak are still holding their positions. On the upside, there is resistance near $114,650, corresponding to the cost basis of short-term holders (holding for 3–6 months). This group significantly built positions near the peak, and if the price returns to this range, some investors may choose to sell near their breakeven point.'