Amtech Systems' 15min chart shows Bollinger Bands Narrowing, Bearish Marubozu

According to the 15-minute chart of Amtech Systems, there has been a recent trigger of Bollinger Bands Narrowing, coupled with a Bearish Marubozu at 10/31/2025 12:45. This indicates a decline in the magnitude of stock price fluctuations, suggesting that sellers are currently in control of the market. Furthermore, this bearish momentum is likely to persist.