Personalis 15-min chart: Bollinger Bands Narrowing, KDJ Death Cross detected.

Based on the 15-minute chart analysis, Personalis's recent price fluctuations have exhibited a narrowing trend within the Bollinger Bands, a technical indicator commonly used to gauge volatility. Furthermore, the KDJ (KST Divergence Indicator) has triggered a death cross at the aforementioned time, suggesting a shift in the momentum of the stock price towards a downward trajectory. This development implies a potential continuation of the downward trend, as the magnitude of price fluctuations appears to be decreasing and the momentum is shifting towards the downside.