The Brazilian neobanking unicorn Nubank is stepping up its crypto adoption drive, adding trading capabilities for five more altcoins to its banking app.

Per the Brazilian media outlet Livecoins, the bank added support for Polkadot (DOT), Avalanche (AVAX), Stella Lumens (XLM), Arbitrum (ARB), and Optimism (OP) on November 22.

The bank launched crypto trading functions on its banking app in May 2022, offering its bank customers access to Bitcoin (BTC) and Ethereum (ETH).

It has since expanded its range of crypto offerings and earlier this year added Polygon (MATIC) and Uniswap (UNI) trading functions.

Nubank has become one of the nation’s most prominent crypto bulls, last year announcing its intention to buy Bitcoin (BTC) using its balance sheet.

The company said it wanted to convert 1% of its available funds to Bitcoin via its holding company.

The bank is attempting to drive up interest in its new altcoin additions by offering promotional commission rates of 0.9% for the next four weeks.

Some of Nubank’s other major backers include Sequoia Capital, Tiger Global Management, and Goldman Sachs.

Nubank is also working with the Brazilian central bank on the latter’s digital real CBDC pilot project, along with a number of smaller domestic crypto players.

Other notable domestic conventional financial services providers, such as Itaú, have also begun developing crypto interests in recent years.