Guardant Health's 15min chart triggers Bollinger Bands Narrowing, KDJ Death Cross detected.

According to the 15-minute chart for Guardant Health, the Bollinger Bands have narrowed, and the KDJ indicator has formed a death cross on August 18, 2023, at 12:45. This indicates a decrease in the magnitude of stock price fluctuations and a shift in momentum towards the downside, potentially leading to further decreases in stock price.

Cathie Wood’s ARK ETFs have been actively managing their portfolio in response to recent market conditions, with significant moves in various sectors including cryptocurrency, healthcare, and e-commerce. On Wednesday, August 13, 2025, ARKK, ARKW, and ARKG ETFs made notable transactions, reflecting the firm’s strategic approach to capitalizing on growth opportunities while making strategic exits.

ARKK, ARKW, and ARKG ETFs collectively purchased 2,532,693 shares of Bullish (BLSH), a cryptocurrency exchange platform, with a total value of approximately $93.7 million. This substantial investment indicates ARK’s strong bullish stance on the digital assets space, positioning Bullish as a potential future leader in the industry.

In the healthcare sector, ARK has shown continued interest in genetic diagnostics and personalized medicine. The firm bought 56,939 shares of CareDx Inc (NASDAQ:CDNA) and 17,723 shares of GeneDx Holdings Corp (NASDAQ:WGS), valued at approximately $709,459 and $2,063,134 respectively. These investments underscore ARK’s confidence in the genetic diagnostics and personalized medicine sectors.

Conversely, ARK has decided to reduce its exposure to certain healthcare technology companies. The firm sold 25,752 shares of Guardant Health Inc (NASDAQ:GH) through the ARKG ETF, amounting to about $1.4 million. Additionally, ARK sold 93,988 shares of 908 Devices Inc (NASDAQ:MASS), valued at $608,102, indicating a strategic retreat from these positions.

ARK has also reduced its exposure to e-commerce giant Shopify Inc (NYSE:SHOP), selling 21,240 shares through the ARKF ETF with a total value of over $3.1 million. This move comes amidst a broader sell-off trend observed in Shopify’s stock by ARK over the past week, suggesting a potential shift in the firm’s assessment of the online retail sector’s prospects.

ARK’s continued accumulation of Personalis Inc (NASDAQ:PSNL) shares, with the latest purchase of 15,263 shares valued at $69,751, highlights the firm’s growing interest in the genomics industry. This follows a series of buys in the genomic sequencing company over the past week.

As market participants analyze these trades, it’s clear that Cathie Wood’s ARK ETFs are actively managing their portfolio, capitalizing on perceived growth opportunities while also making strategic exits. Investors will undoubtedly keep a close eye on these developments to gauge the direction of ARK’s innovative investment strategies.

References:
[1] https://www.investing.com/news/company-news/cathie-woods-ark-buys-bullish-stock-sells-shopify-and-guardant-health-93CH-4190519