Canary Capital has submitted a 19b-4 form to the U.S. Securities and Exchange Commission for a Hedera ($HBAR) exchange-traded fund (ETF). This move indicates growing interest in cryptocurrency ETFs, particularly for Hedera, which has been mentioned alongside other cryptocurrencies such as Cardano ($ADA) and Chainlink ($LINK) in recent discussions. Analysts and influencers in the crypto space are speculating on the potential for ETFs involving Hedera, Cardano, and Polkadot ($DOT), suggesting a trend towards broader acceptance of these digital assets in traditional investment vehicles.