Where the values come from
The launch dataset is a checked-in snapshot from the documented Stats Guy Fantasy API. Each format has its own source date. FantasyTradeHub does not call the upstream service while you use the calculator.
How the comparison is calculated
Each side's available asset values are added together. The absolute gap is divided by the larger total and displayed to one decimal place.
- Within 5%: very close on market value
- Over 5% through 12%: slight edge
- Over 12% through 25%: clear edge
- Over 25%: substantially more market value
How the weekly projection lens works
The optional projection result is separate from market value. It uses the authorized NFL Fantasy Football Advisor model to estimate full-PPR points for the displayed week, then adds the covered player projections on each side. Rookie picks are excluded because they cannot score current weekly points. If any selected player lacks an eligible projection, FantasyTradeHub withholds the package projection verdict instead of treating that player as zero.
The current model was trained on 2018 through 2024 data and evaluated on a reserved 2025 test season. Its test mean absolute error was 4.447 PPR points, rank correlation was 0.6813, and mean top-N overlap was 51.22%. These are aggregate evaluation results, not a confidence interval for an individual player.
The Week 5 snapshot was frozen before the week's games using data available through October 7, 2026. The build did not have a 2026 injury feed, so projections are conditional on appearance and must be checked against current availability news. Model inputs include nflverse data, which is provided under CC BY 4.0. See the imported project's source and methodology.
Fresh, stale, and unavailable data
A snapshot is fresh through seven days and stale from eight through 30 days. After 30 days, listed values remain visible for reference but the calculator suppresses its verdict. Redraft values outside the active season are labeled by their actual source date.
How the lineup impact preview works
On the redraft analyzer, manually entered rosters can be compared before and after a selected trade. The preview fills a standard full-PPR lineup with the highest projected eligible players: one quarterback, two running backs, two wide receivers, one tight end and one RB/WR/TE flex. Superflex adds one QB/RB/WR/TE slot. It excludes rookie picks and withholds a complete change when any entered player lacks a usable projection or a required slot cannot be filled.
This deterministic slot calculation is not a full league optimizer. It does not model custom slots, custom scoring, waiver replacements, bench depth or a remaining-season horizon. A player's projection is suppressed when their listed game date begins, because the frozen pre-week estimate should not be used after that game is underway.
What the result cannot account for
The weekly projection and lineup lenses do not model custom scoring, championship windows, live injuries, breaking news, risk tolerance or another manager's preferences. Market value and projected points answer different questions, and neither is a recommendation or guarantee.
The fantasy football trade value chart lists the same format-specific market snapshot used by the calculators, so you can inspect individual assets before evaluating a package.