Matthew Stafford and Michael Penix have been on opposite sides of 21 real dynasty trades.
Not simulations and not a calculator lining up two numbers. Every one of them is a completed trade from a public Sleeper league, graded at the player values that were current on the day it happened.
Most of those were larger deals with other pieces attached. 1 of them were straight up: Matthew Stafford for Michael Penix, nothing else changing hands.
In 4 of these deals exactly one side had to attach something extra, split 2 to 2 between the Matthew Stafford side and the Michael Penix side. That is too close, and too small a sample, to call either player the more valuable.
Everything above is priced on the day each deal happened, which is the only honest way to grade a completed trade. It is not what they cost now. Today Matthew Stafford prices at 371 and Michael Penix at 170, so the market currently rates Matthew Stafford about 2.2x the other. A pair can lean one way across its history and price the opposite way now; that gap is the whole reason to check the deal in front of you rather than the deal someone made in 2023.
Values as of 2026-07-24.
| Date | Margin | Went with Matthew Stafford | Went with Michael Penix |
|---|---|---|---|
| 2026-07-22 | -88% | CeeDee Lamb, Davis Mills, Justice Hill, 16 more, 1 1st, 1 2nd, 2 3rds, 2 later picks | James Conner, Tucker Kraft, Andrei Iosivas, 15 more, 1 later pick |
| 2026-05-13 | +26% | Davante Adams, Colby Parkinson | Kyle Monangai, 1 2nd, 1 3rd |
| 2026-05-04 | +68% | — | Theo Johnson |
| 2026-04-29 | -5% | Chase Brown | Derrick Henry, 1 2nd |
| 2026-04-20 | +42% | Christian McCaffrey | Quinshon Judkins |
| 2025-12-07 | -63% | 1 3rd | Travis Etienne |
| 2025-12-03 | -6% | Brock Bowers, 1 3rd | J.J. McCarthy, Ray Davis, Josh Jacobs, 1 more |
| 2025-11-17 | +47% | Stefon Diggs | — |
| 2025-11-15 | -26% | Sam Darnold | J.J. McCarthy |
| 2025-11-14 | -26% | Josh Jacobs | Kyle Monangai, 1 1st, 1 2nd |
Read each row as: Matthew Stafford, plus anything in the third column, was traded for Michael Penix plus anything in the fourth. An em dash means that side sent nobody else. Margin is the value gap at that day’s prices from the side that received Matthew Stafford; positive means that side came out ahead.
Across all 21, the whole-deal value gap runs +17.2% from the side that received Matthew Stafford, so the side ending up with Matthew Stafford has generally come out ahead on face value. That measures the entire trade, every piece included, not these two players against each other.
A calculator answers “is Matthew Stafford for Michael Penix fair” by subtracting one number from another, and it gives every manager in your league the same answer. That tells you nothing about whether the trade closes. What closes it is whether one side has to attach a piece, and which side that usually is. The 21 deals above are the record of what leagues actually agreed to when these two were on the table together.
How trade fairness actually works →
Every Matthew Stafford trade · Every Michael Penix trade
All players with real trade data →