Source text: Deutsche Börse has made a strategic investment in cryptocurrency exchange Kraken, signaling increased institutional interest in the digital asset space. This move is part of a broader trend of traditional financial institutions engaging with the crypto market. In another significant development, a UK asset manager has transitioned a £50 billion fund onto blockchain technology, highlighting the growing adoption of on-chain solutions for asset management. Meanwhile, Bitcoin miners have conducted a substantial sell-off, impacting market dynamics. Additionally, BitMine has expanded its Ethereum holdings, and Tether has launched a new self-custody wallet, enhancing user control over digital assets. Strategy has also increased its Bitcoin acquisitions, reflecting continued confidence in the cryptocurrency's potential. Target language code: fr Translation instructions: This is the news article content. Please maintain the original meaning.