I get where you're coming from, but that's an meaningless comparison. Keep in mind that the same bitcoin can be spent over and over again. And once stolen, it

I get where you're coming from, but that's an meaningless comparison. Keep in mind that the same bitcoin can be spent over and over again. And once stolen, it will certainly be spent. (You don't steal bitcoins except to spend them.) Pretty much by definition, the volume of bitcoins being spent is going to exceed the volume of bitcoins being stolen[1]. So basically, the answer is "never", which is why that's not really a useful metric. What might be more interesting is what percentage of bitcoins have been stolen in the past, [1]: Unless we end up with a situation where a large number of bitcoins are being repeatedly stolen from thieves before they can spend them. That's theoretically possible...but highly implausible.