Potential investors can purchase Polkadot tokens through various trading platforms such as brokers, cryptocurrency exchanges, or derivatives. There is an option to buy DOT directly or invest in financial instruments based on Polkadot. Such products include certificates and ETFs that fluctuate in value based on the Polkadot price. Bitpanda is a simple, safe, and regulated platform  where you can securely buy and trade Polkadot.