The runaway success of the artificial-intelligence trade has left investors hungry for the next big market theme. Wall Street fund managers are happily obliging with a flurry of new targeted products, helping investors invest in everything from the rise of robotics to the incipient space economy.
Source: [MarketWatch](https://www.marketwatch.com/story/ai-fever-ignites-a-boom-in-thematic-etfs-as-fund-managers-hunt-for-their-next-big-hit-82d1566c?mod=mw_rss_topstories)