Bakkt Holdings Inc., the digital-asset marketplace launched by the parent of the New York Stock Exchange, is exploring a potential sale amid a spike in crypto-related takeover activity, according to people familiar with the matter. Bakkt has been working with a financial advisor to weigh a range of strategic options, including a breakup, said the people, who asked to not be identified because the details aren’t public. No final decision has been made and Bakkt could opt to remain independent. A ...