The Trump-named cryptocurrency is valued at more than $6 billion after its first week, but it mimics moves made by ancient leaders.

While Donald Trump’s newly launched meme coin has garnered extensive interests, especially from retail traders, it has yet to contribute to the president’s net worth.

Rus Yusupov, who co-founded Vine in 2012, announced the launch of Vine Coin years after the short-form video app was ...