Quantopian has a big announcement today. The company will manage up to $250 million of investment capital, provided by Steve Cohen. The investment capital will be allocated to members of Quantopian who create successful trading algorithms on the Quantopian platform. The algorithm authors own all their own IP and are paid a royalty if they decide they want to accept investment capital to power their algorithm. The WSJ has more details. My favorite pull quote from the article is where they de...