Each team on FanFolio has a stock price driven by the market's expectation of its finishing position. If you spot a team the market is undervaluing, buy it. If you think a favorite is overpriced, sell or short it.
Pick a league or tournament, browse the standings, and open a team's stock page. You will see its current market price, recent price movement, and where it sits in the table. If you think the team will finish higher than its current price implies, you buy. If the market has it too high, you sell.
Trades execute against other users on the order book. There is no house taking the other side — the price is set by supply and demand from the community. As results come in and the standings shift, prices move and new opportunities open up.
A team's stock price tells you where the market collectively expects it to finish. If a team is priced at $8 and first place pays $10, the market is saying it has a strong chance of winning but hasn't locked it in. If you think that team is a certainty, there is still $2 of upside.
The best trades often come after upsets, injuries, or transfer news when the market hasn't fully adjusted. A team that just beat the league leader might still be priced for a mid-table finish — that is the gap you are looking for.