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NFL free agency may have dramatically changed many teams on paper, but oddsmakers are not significantly changing their odds of who will win Super Bowl 50.
When the 2015 season ended, Seattle and New England were the favorites to make it back to the Super Bowl next year with the Seahawks favored to win it all. That's still the case two months later, as Seattle stayed relatively quiet in free agency and has done nothing to damper their chances of hoisting the Lombardi.
The Patriots were hit hard with the losses of Darrelle Revis, Vince Wilfork, Brandon Browner and Shane Vereen, but they only fell from 5-1 to 6-1 odds to win Super Bowl 50. The Colts' odds have improved from 12-1 to 7-1 since the end of the season, thanks to the additions of Frank Gore and Andre Johnson.
As for the Bengals, they've taken a slight hit going from 25-1 to 30-1 odds, despite having a fairly productive free agency period. Not only did they re-sign their key players, but the additions of Pat Sims and Michael Johnson made their defense better. It wasn't enough however to increase their chances of wining Super bowl 50, at least in the eyes of oddsmakers.
Here's a look at the updated odds for all 32 teams, via ESPN:
| TEAM | FEB. 1 | MARCH 9 | MARCH 31 |
|---|---|---|---|
| Seattle Seahawks | 5-1 | 6-1 | 5-1 |
| New England Patriots | 6-1 | 5-1 | 6-1 |
| Green Bay Packers | 7-1 | 7-1 | 7-1 |
| Indianapolis Colts | 12-1 | 10-1 | 7-1 |
| Denver Broncos | 8-1 | 12-1 | 14-1 |
| Dallas Cowboys | 14-1 | 12-1 | 14-1 |
| Philadelphia Eagles | 20-1 | 20-1 | 18-1 |
| Baltimore Ravens | 20-1 | 20-1 | 25-1 |
| Detroit Lions | 25-1 | 20-1 | 25-1 |
| Pittsburgh Steelers | 20-1 | 25-1 | 25-1 |
| Arizona Cardinals | 30-1 | 25-1 | 25-1 |
| Carolina Panthers | 30-1 | 30-1 | 30-1 |
| Cincinnati Bengals | 25-1 | 30-1 | 30-1 |
| Kansas City Chiefs | 30-1 | 30-1 | 30-1 |
| San Diego Chargers | 30-1 | 30-1 | 30-1 |
| Houston Texans | 30-1 | 30-1 | 30-1 |
| Miami Dolphins | 30-1 | 30-1 | 30-1 |
| Atlanta Falcons | 30-1 | 30-1 | 30-1 |
| St. Louis Rams | 30-1 | 30-1 | 30-1 |
| New York Giants | 30-1 | 30-1 | 30-1 |
| New York Jets | 100-1 | 100-1 | 40-1 |
| Buffalo Bills | 50-1 | 50-1 | 40-1 |
| New Orleans Saints | 25-1 | 25-1 | 40-1 |
| San Francisco 49ers | 25-1 | 25-1 | 40-1 |
| Chicago Bears | 50-1 | 40-1 | 40-1 |
| Minnesota Vikings | 50-1 | 50-1 | 50-1 |
| Cleveland Browns | 60-1 | 80-1 | 80-1 |
| Oakland Raiders | 300-1 | 100-1 | 100-1 |
| Washington Redskins | 100-1 | 100-1 | 100-1 |
| Tampa Bay Buccaneers | 200-1 | 200-1 | 150-1 |
| Tennessee Titans | 300-1 | 200-1 | 200-1 |
| Jacksonville Jaguars | 300-1 | 300-1 | 200-1 |