Like everyone, Mark Cuban's investment history has hits and misses — and, at least when it comes to ABC's "Shark Tank," the billionaire has made peace with that fact.

On Saturday, Cuban noted on Twitter that "on a cash basis," he's taken a net loss on his myriad "Shark Tank" investments — which, by one online estimate, include more than $61 million invested into 210 startups since joining the show in 2011. (This estimate is based on Cuban's on-screen investment, which do not always ultimately result in a consummated deal after the fact.)