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 Sharksnip 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 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.
Five waiver-wire tiers, with bid ranges
The Sharksnip 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):
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. 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.
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. 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.
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.
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.
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 — that's 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.
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.
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 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 Sharksnip fantasy hub projects league-wide FAAB-spent percentages by week so you can see how aggressive the market is going to get.
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%
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 Sharksnip waiver-wire tool tags every available player with their projection tier and recommended FAAB range, refreshed every Tuesday morning.