Crypto assets in custody are expected to reach at least $16 trillion by 2030.: Zodia Custody said the growth of tokenization presents enormous opportunities as State Street and Ripple are also expanding  digital asset custody services. Ripple Custody said in a statement that custody is a key entry point into the digital asset economy, and is growing. The statement said: “The amount of crypto assets custodied is expected to reach at least $16 trillion by 2030, and moreover, 10% of the world’s GDP is expected to be tokenized by 2030.