Defiance, a US asset management firm, has filed with regulators to launch an exchange-traded fund (ETF) focused on Chinese robotics and automation companies. This move aims to capitalize on the growing interest in China's robotics industry. Bloomberg analyst Eric Balchunas highlighted the potential of niche ETFs, citing the success of KraneShares' KWEB China Internet ETF, which has grown significantly since its 2013 launch despite initial skepticism.