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Tier Unranked Mythical Demand · Stable Reliable
Big Mama icon — Mythical rarity item in Grand Piece Online

Big Mama BM

Soru Soru no Mi Soru Soru no Mi sneak peek in Discord Type Paramecia Passive Buffs Soul Cleaver (adds 2 skills)Soul BarPrometheus & Zeus …

What Big Mama’s value means

At 5.4K value units, Big Mama trades for roughly 0.54× a Mythical Fruit Chest (the 10,000-unit reference item), so it sits below the anchor on the chart.

That figure is a medium-confidence read: the solver places the true value between 4.6K and 6.2K (a ±15% band) off 470 observed Discord trades.

Over the last week the value has been holding roughly flat versus its 30-day average (+0.0%).

Demand is currently rated Stable and rarity is Mythical, both recomputed every solver run.

Price history · 60 days

Per-day median across observed trades. Last point is today's solver run.

+104.3% / 60d
CI mid
59d ago44d29d14dtoday

Recent Big Mama trades

The exact offers our pipeline parsed from Discord — no edits, no opinions.

Most common trade shapes observed for Big Mama, from 127 solo-trade samples.

Trade recommendations

Auto-built from the value-matches graph. Verdicts use the same Win/Fair/Lose math as the calculator.

FAIR
Big Mama for Magu (5.4K)
Within 2% — a clean even swap.
+0.1% delta
FAIR
Big Mama for Ito (5.4K)
Within 2% — a clean even swap.
-0.5% delta
WIN
Big Mama for Fish Bait (5.1K)
Big Mama's value tops Fish Bait — clean win on paper.
+5.7% in your favor
FAIR
Big Mama for Hie (5.8K)
Inside the confidence band — fair on paper.
-7.0% delta
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FAQ

How much is Big Mama worth in GPO?

Big Mama's current trading value is approximately 5.4K (range 4.6K–6.2K), based on 470 observed Discord trades over the last solver run. Updated 2026-07-27.

Is Big Mama's value rising or falling?

Right now it's roughly flat: the 7-day value is +0.0% against its 30-day average, so no strong move either way.

How is Big Mama’s value calculated?

Big Mama's value is derived purely from observed Discord trade messages using a ratio-chain solver against the Mythical Fruit Chest anchor (10,000 value units). No editor opinions, no hand-tuned numbers. See /legal/methodology for the full math.

Why is the value a range, not one number?

The range is a 90% confidence band. The single headline number is the median; the band shows where the solver thinks the true value lives given noise.

Is Big Mama's demand Stable forever?

No. Demand is recomputed every solver run from the offered:wanted ratio in trade messages. Big Mama's current ratio is 0.99 (234 wanted vs 236 offered) — that's why demand is Stable right now.