FAAB — Free Agent Acquisition Budget — is the single most overthought and underthought area in fantasy football. People agonize over whether to bid $24 or $26 on a guy who's worth $40, or blast $80 of a $100 budget on a streaming kicker. The Shark Snip projection model treats FAAB the way it treats betting bankroll: every dollar represents a percentage of remaining season equity, and you bid based on the player's projected production tier — not on hype. The math is the same as the Kelly framework on /desk, just applied to a $100 budget instead of a real bankroll.
The core principle: bid against expected value, not against the room
Most FAAB advice is reactive: "if the room bids X, you bid X+5." That's how you end up bidding $40 for a back who finishes the year as the RB47. The model's framework is the opposite — start with the player's expected fantasy points over the rest of the season, multiply by your team's marginal need at the position, then convert to a percentage of your remaining FAAB. Whatever the room is doing is irrelevant. If your bid wins, great; if it loses, the room overpaid. You can pressure-test this end-to-end in /tinker by forking the projection and adjusting the player's ROS expectation manually.
Five waiver-wire tiers, with bid ranges
The Shark Snip waiver-wire tool classifies every available player into one of five tiers based on projected usage and ROS production. Here are the tiers and the model-recommended FAAB bid ranges (as % of original budget, regardless of what's left). The tiering logic itself is a published blueprint in the Workshop — fork it if you want to retune the thresholds for a deep-bench dynasty or auction-recovery league.
Tier 1 — Lead RB takeover (45–70% of original FAAB)
The starting RB on a real NFL offense gets hurt, and the backup steps in with a true bell-cow workload. This is the most valuable add in fantasy football, full stop. Kyren Williams' 2023 role surge is the kind of archetype managers should recognize quickly: once the snaps and goal-line work are real, the waiver price should be aggressive. Lead RB takeovers historically finish as a top-24 RB about 60% of the time over their first 4 weeks of starting. Bid like it. Anything less than 45% of your original FAAB is a missed opportunity, and bids north of 70% are reasonable in win-now situations. The draft version of this same bet shows up in our RB1 hit-rate backtest. The 2026 archetype to watch closest is whichever back ends up the lead behind Bijan Robinson, Jahmyr Gibbs, or Saquon Barkley — the workload these starters carry means the handcuff has top-12 upside the day the role changes.
Tier 2 — WR1 emergence (25–45% of original FAAB)
A WR posts 30%+ target share for two consecutive games while a starter in front of him is hurt or has been traded. Per our target share piece, this is the cleanest breakout signal. Puka Nacua's early-season usage spike is the historical lesson: the name may be new, but route participation plus first-read targets travel fast. The bid is lower than a Tier 1 RB add because target share is sticky but not as instantly elite as a bell-cow workload, and because WR scoring is more volatile week-to-week. The 2026 versions of this archetype are usually a third-year WR who finally gets the route share — names like Jameson Williams in a healthy season, or a deep-roster WR who gets featured after a Marvin Harrison Jr. or Drake London injury.
Tier 3 — High-floor flex add (10–25% of original FAAB)
A player whose role has solidified into a steady contributor — a 65–75% snap share RB, a 22% target share WR, a 70%+ route participation TE. These won't win you weeks on their own, but they replace a roster hole permanently and free up other moves. The bid is moderate because the upside is capped but the floor is real. Think a healthy Khalil Herbert in a clear committee, or a slot WR whose 5–6 catch a week role is locked in. Run the candidate through /desk's start-sit comparison against your current bench piece before deciding the bid is worth it.
Tier 4 — Streamer / one-week play (1–8% of original FAAB)
The QB streamer covered in our streaming QBs piece, the matchup-based DST swap, the kicker change, the WR3 with a soft week. These are valuable, but they shouldn't drain double-digit FAAB unless you're in a deep-bench format where the next-week stream is also locked behind a bid. In TE premium specifically, this tier sometimes blurs into Tier 3 because positional replacement cost is so much higher — see the TE premium piece.
Tier 5 — Lottery ticket / handcuff (0–3% of original FAAB)
A backup RB on a team with an injury-history starter, a year-2 WR getting more snaps, a TE2 in 12-personnel offenses. These are speculative adds that pay off rarely but pay off big. Don't blow real FAAB on them. A $1 token bid is usually correct. The exception: a contingent handcuff to a player you already roster — a Zach Charbonnet or Tyler Allgeier profile behind your own starter is worth a Tier 4 bid because the contingent value is locked in.
How to size against your remaining budget
The percentages above are of your original $100 (or $1,000) FAAB, not of what's left. This is the correction most managers miss. If you've burned through 60% of your budget on prior weeks, you have to be more selective — but the recommended bid for a Tier 1 RB add is still 45–70% of original. If that means going all-in with what you have left, that's fine, that's what FAAB is for.
The opposite is also true. If you've saved 90% of your FAAB through Week 8, you don't need to "use it or lose it." Save it for the right opportunity. Most championship-caliber managers spend the bulk of their budget in Weeks 4–9, when injuries cluster and the waiver wire is at its most informative. The /picks board tracks injury news every Monday morning and tags the FAAB-relevant role-change candidates on /picks before Tuesday claims process.
Three common FAAB mistakes
1. Bidding the median instead of the tier
Looking at last week's winning bid for a similar player and bidding 10% more. This anchors you to whatever your league's most-aggressive manager did last week, not to actual player value. Use the tier framework instead. The tier framework is built into the Shark Snip projection model — every available player on the waiver tool has a recommended tier with the contributing features (snap share, route participation, target share trend) surfaced inline so you can verify the call.
2. Treating "bid blockers" like real bids
Putting in $1 on every available player every week to "block" your league. This is a strategy in shallow leagues where bench depth matters; in standard leagues it's a waste of the move limit and rarely changes outcomes. Don't burn moves on names you wouldn't actually start.
3. Not factoring positional need
A Tier 2 WR add for a team with three top-30 WRs is a Tier 3 add for that specific team. Adjust the bid down by 30–50% if the player isn't filling a real starting spot. The marginal value of a 4th WR is much smaller than the marginal value of a 3rd WR. The trade-analyzer on /desk does this math automatically when you import your roster — the same projection model that grades the player also grades how badly your team needs him.
The playoff-week FAAB squeeze
FAAB bids spike dramatically in Weeks 13–15 because remaining contenders push their entire budgets onto a single waiver. If you've conserved FAAB through the season, this is your edge. The Shark Snip fantasy hub projects league-wide FAAB-spent percentages by week so you can see how aggressive the market is going to get. The same pre-stash logic shows up in the QB streaming guide — you bid soft in Weeks 11–12 to lock in your Week 14–16 stream before the field wakes up.
Pre-stash playoff streamers (especially QBs and DSTs) two weeks before the playoff window opens. The bid environment is much softer in Weeks 11–12 than it is in Week 14.
Quick reference table
- Lead RB takeover: 45–70% original FAAB
- WR1 emergence: 25–45%
- High-floor flex add: 10–25%
- One-week streamer: 1–8%
- Lottery ticket / handcuff: 0–3%
FAAB strategy by league format
The tier ranges above are calibrated for 12-team, 1.0 PPR, half-bench leagues. Adjust as follows:
- Deep leagues (14–16 teams): Multiply every tier by 1.2x. The replacement-level player on waivers is materially worse, which means the marginal add is worth more.
- Shallow leagues (8–10 teams): Multiply by 0.7x. Quality is on the wire every week; you can stream instead of bid.
- TE premium: TE bids move up one tier. A Tier 3 TE in standard PPR becomes a Tier 2 bid in TE premium.
- Best-ball / no waivers: N/A — but the tier framework still applies to draft capital allocation, see the ADP tiers piece.
- DFS-adjacent leagues: Bring the same model to your DFS lineups on /dfs; the same usage signals that drive FAAB tiering drive salary-vs-projection edges.
The math behind the percentages
The tier percentages are not arbitrary. They are derived from a Kelly-style bankroll fraction applied to the projected fantasy-points delta a player provides over your current bench piece. Lead RB takeovers historically deliver ~70 PPR over the rest of the season relative to a Tier 4 stream; that delta, divided by your average weekly opportunity cost of FAAB, lands at the 45–70% range. If you want to see the derivation, the /tinker template "FAAB Kelly" lets you plug in your league size, scoring, and remaining weeks to recompute the ranges for your specific league. The model on /workshop also lets you compare your tier calls against the consensus tier from public waiver-wire columns.
Bottom line
FAAB is risk capital. Treat the bid like a bet against expected fantasy production, not against your league mates' egos. Tier the player, adjust for positional need, and bid the tier — not the room. Conserve aggressively in the early weeks, deploy in Weeks 4–9 when usage is the clearest signal, and pre-stash for the playoff push two weeks early.
The Shark Snip waiver-wire tool tags every available player with their projection tier and recommended FAAB range, refreshed every Tuesday morning. Want to ship a waiver-tier model of your own? Spin one up at /build, push it to the Marketplace, and track how it ranks on the creator leaderboards.
Verified stat anchors and 2026 price checks
Use names as evidence, not decoration. The useful SEO win is that Kyren Williams, Bijan Robinson, Jahmyr Gibbs, Puka Nacua and Josh Allen and Chiefs, Bills, Eagles and Lions appear inside decisions, thresholds, and internal links instead of being dumped into a keyword list.
Calibrate the fantasy take with real 2025 production before moving to 2026 price. StatMuse season pages list Jonathan Taylor at 1,559 rushing yards, 18 rushing TDs, and 44 receptions; Bijan Robinson at 1,478 rushing yards with 79 catches for 820 receiving yards; Jahmyr Gibbs at 1,223 rushing yards, 77 catches, and 616 receiving yards; Puka Nacua at 166 targets, 129 catches, and 1,715 receiving yards; and Amon-Ra St. Brown at 172 targets, 117 catches, 1,401 yards, and 11 receiving TDs.
- ADP rule: pay full freight only when role, team total, and contingency value all support the ceiling.
- FAAB rule: 45-70% for a real lead-RB takeover, 25-45% for a target-share breakout, 10-25% for a stable flex, 1-8% for streamers, and 0-3% for bench stashes.
- PPR tiebreaker: a Kyren Williams-style rushing profile and a Gibbs or Bijan receiving profile should not be priced the same if catches are worth a full point.
- QB rushing rule: Josh Allen and Jalen Hurts archetypes deserve separate math from pocket passers because goal-line rushing can change weekly ceiling and late-round replacement value.
Turn those names into decisions: draft, fade, trade, stash, or bid only when the 2026 price leaves room after role risk. Related workflows: fantasy ADP value tiers, target share vs air yards, FAAB strategy.
Research note board
Use this draft-room board before moving a player up or down. It keeps projection, price, and format separate.
| Decision | Check first | Example application | Do not act if |
|---|---|---|---|
| Draft | ADP, scoring format, role certainty | Kyren Williams at sticker price versus Bijan Robinson at a discount | The room is charging for ceiling while role risk is still unresolved |
| Trade | Rest-of-season role, playoff schedule, roster need | Jahmyr Gibbs as a need-based target instead of a generic upgrade | Both sides depend on the same fragile team environment |
| Waiver or stash | Injury-away upside, first-team reps, FAAB reserve | Puka Nacua profile compared with a short-term streamer | The move costs flexibility without adding a clear starting path |
Educational analysis only, not a bet recommendation. Check current lines, injuries, rules, contest terms, and local regulations before acting.
DFS projected ROI vs ownership %
Projected GPP ROI multiplier vs projected ownership across simulated lineups. Sub-10% leverage plays compound when they hit; chalk plays cap your upside even when the projection is dead-on.
Prop OVER hit rate vs line distance from median
Empirical hit rate of OVER bets as the prop line moves away from the player projection median, measured in standard deviations. A line set 1sd below the median hits ~84% of the time — but books price the juice to match.
