Following the [network’s redenomination](https://wiki.polkadot.network/docs/en/redenomination) after a referendum on Polkadot, DOT balances increased by 100, so one old DOT was equivalent to 100 new DOT. This meant that the initial maximum supply of 10 million old DOT in August 2020 became 1 billion new DOT tokens. The redenomination was undertaken purely to avoid the use of small decimals and make calculation easier. While all balances were increased by a factor of one hundred, this did not impact the distribution of DOT or holders’ proportional share.
Polkadot’s first initial coin offering (ICO) was held in October 2017, and the Polkadot price was $0.29, with 2.24 million tokens offered. The second ICO was held in July 2020, and the Polkadot price offered was $1.25, and 342,080 DOT tokens were sold.