What is the meaning of ' would' in the sentence below?

I'm not sure, Negi. The sentence needs some work because it has a sort of redundancy since we can suppose that floppies wouldn't do well. Also there's some sort of tense problem which I'm sure one our experts will elucidate, I might've said,

We bring you what must have been the biggest movie flopsof 2016, based on the fact they didn't do well