I'm surprised these 0℅ APR guaranteed for 15+ months credit cards are still on the market. Still, dozens; every single bank or cc company.

How can it be cashflow positive for them? They have to end up with +5% each year to justify it. Arguably at least +6-7% accounting for the administration cost.

Given the average APR on the actual balance then is around 23%, they have to estimate that +40% of customers fail to repay the balances on these in the intro 15month period and will be able to keep paying the 23% for at least they year.

Sounds like a big gamble to me, and something doesn't add up.

What am I missing?