Welcome to Ball Street: QBL Stock Exchange, the ultimate weekly market watch for NFL player performance. Eric Romoff (@FantasyNav) and Chris Helle (@ChrisHelleQBL) lock in to find the players whose value has steeply risen or steeply dropped after another week of NFL action.  This sharp, fast-paced show breaks down the biggest risers and fallers from the previous week’s gridiron action—treating your fantasy football favorites like Wall Street commodities.