Artivion's 15min chart shows MACD Death Cross and Bollinger Bands expanding downward.

According to Artivion's 15-minute chart, the MACD indicator has crossed below the signal line, signaling a potential reversal in the stock's upward momentum. Furthermore, the Bollinger Bands are currently expanding downward, indicating a widening range of volatility and a higher likelihood of price declines. These technical indicators suggest that the stock's trend is being driven by a strong selling pressure, which could lead to further decreases in its value.