NAB straight up card, page-17

APT is a mix of credit and fintech. Its valued differently because it has potential to disrupt payments around the world (something the big 4 can't) and also in its infancy Afterpay is already creating tens of millions of lead referrals to merchants, also something banks aren't doing.

So not a like for like comparison. It's also impossible for banks to try and recreate Afterpay's success due to them being classified an ADI. Holding other peoples savings/deposits means they are heavily regulated to protect these deposits. Banks have to maintain stringent capital ratios (CET1, Tier 1 and Toral capital) which means if they were to try to increase massive amount of micro loans they would have to raise and maintain a huge amount of capital.

This is actually one of the biggest advantages of APT over their rival Klarna which is also classified an ADI.