HeartBeam's 15-min chart shows Bollinger Bands expanding downward and a bearish Marubozu.

In the context of HeartBeam's 15-minute chart, the recent trend has been characterized by the expansion of Bollinger Bands downward, coupled with a bearish Marubozu at 12/30/2025 10:30. This suggests that the market is being driven by selling pressure, with sellers dominating the market sentiment. Consequently, it is likely that the bearish momentum will continue.