Octopus chief Greg Jackson has said choosing London as the destination for the blockbuster IPO of tech spin-off Kraken would be a “no brainer” if the exchange maintains its world-leading performance in 2025 and demonstrates it can lure fresh capital into the UK. In the biggest signal yet that the firm may select London over New York for its eagerly anticipated £7bn IPO of Kraken, Jackson told City AM he would prefer to make his stock market debut in the Square Mile, and keep his “cutting-edge tech company” on British…