21Shares’ Polkadot Staking ETF, trading as TDOT on Nasdaq, has gathered just over $11.5 million since launching in March. That is not breakout scale, but it is an early read on whether regulated crypto demand can extend beyond Bitcoin and Ethereum into a smaller token with staking exposure. TDOT gives investors spot access to Polkadot inside an ETF wrapper, making it the first U.S. spot fund built specifically around Polkadot. The practical next test is whether that opening asset base keeps building after launch, or stalls at a niche level.