In the US100 market, a Bearish Bat pattern has formed, signaling a potential trend reversal. This harmonic pattern typically suggests that an upward trend may be losing momentum, opening up the possibility of a downturn. The Bearish Bat consists of four legs labeled as X-A, A-B, B-C, and C-D, where each segment aligns with specific Fibonacci retracement and extension levels. When the D point completes near the 88.6% retracement of the X-A leg, it acts as a potential reversal zone (PRZ), indicating that sellers may enter the market, leading to a bearish shift in price. Traders often watch for confirmation at this PRZ to initiate short positions, setting stop losses just beyond point D.