Group 1 - The stock market is hovering around all-time highs, prompting the need for investors to consider portfolio re-allocation to mitigate potential downside risks [1] - Concentrated trading in large-cap tech stocks has resulted in expensive multiples, indicating a potential overvaluation in this sector [1] - Gary Alexander, with extensive experience in technology and startups, provides insights into current industry themes and has been a contributor to Seeking Alpha since 2017 [1]