Investing isn't a game, although too many people think otherwise. And it's damn sure not like fantasy football, where even those with a decided information advantage often find themselves far outside the winner's circle. Spending the lion's share of my life entrenched in both, I get both insulted and mystified at the comparison of the two.
I'll disagree.
Both favor strategy and smarts in the long term, but certain overwhelming short term gains are undeniable and undefendable. Sometimes the "stupid play" will garner a yield to win you a title or to let you sell when stock spikes.
And to say the market isn't a game? You need to step back from this lifelong obession. Fantasy football at least has absolute values. 90 yards is 90 yards and thats that, we don't debate if 90 yards was really 75 or 140 based on how tough the D was, how the weather factored in, was the QB injuried. The numbers are concrete and absolute. Markets fluctuate on perception and if a strong company reads weak or vice versa, their number will likewise go up and down. A steady hand and a dedicated philosophy will USUALLY win the day, but like fantasy football, and poker, when we try to convince ourselves of our remarkable smarts, a little luck will kick smarts ### any day.
And its a game as much as anything because you win and lose.
One more point to the OP, if you are trying to quantify the similarities, I would say in fantasy football and the market, information, and timely information most importantly, is king.