Big Mama's Outfit icon, Legendary rarity item in Grand Piece Online

Big Mama's Outfit BMO

Unranked Legendary High demand Low confidence

Current trading value

1.7K

+40.4%7 days

Range 1.5K–2K

796 Trades

▲ 40% Value change over 7 days Value up 40.4% since Oct 19 1.2K → 1.7K All value changes →

Price history · 60 days

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

+17.9% / 11d

Recent Big Mama's Outfit trades

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

  • Oct 20 Magu  Big Mama's Outfit Screenshot verifiedlogged by Tachyon
  • Oct 20 Big Mama's Outfit + Devil Fruit Rod + Mythical Fruit Chest  Dragon Screenshot verifiedlogged by Toru
  • seen 55× Legendary Fruit Chest  Big Mama's Outfit
  • seen 42× Big Mama's Outfit  Legendary Fruit Chest
  • seen 24× Kaido Outfit  Big Mama's Outfit

Most common trade shapes observed for Big Mama's Outfit, from 194 solo-trade samples.

Trades with a green tag were logged by players and checked against their in-game Past Trades screenshots.

Log your Big Mama's Outfit trade

What Big Mama's Outfit's value means

At 1.7K value units, Big Mama's Outfit is worth about 0.17× the 10,000-unit reference the value chart is pegged to (a Mythical Fruit Chest's starting value in the solve).

That figure is a low-confidence read: the solver places the true value between 1.5K and 2K (a ±15% band) off 796 observed Discord trades.

Since Oct 15, 2026, the value has risen 17.9% (1.5K → 1.7K).

In trade chats and value lists, Big Mama's Outfit is also written BMO.

Demand is currently rated High and rarity is Legendary, both recomputed every solver run.

How to get Big Mama's Outfit

Dropped by
Big Mama
Drop rate
4%

The Big Mama's Outfit (Female) is a Legendary armor accessory with a 4% drop chance from Big Mama at Whole Cake Island.

Trade recommendations

Auto-built from the value-matches graph. Verdicts use the same win/fair/lose math as the calculator.

FAIR

Big Mama's Outfit for Roger's Ace (1.9K)

Inside the confidence band. Fair on paper.

-7.5% delta

WIN

Big Mama's Outfit for Bat Swarm (1.6K)

Big Mama's Outfit's value tops Bat Swarm. Clean win on paper.

+10.1% in your favor

FAQ

How much is Big Mama's Outfit worth in GPO?

Big Mama's Outfit's current trading value is approximately 1.7K (range 1.5K-2K), based on 796 observed Discord trades over the last solver run. Updated 2026-10-26.

How do you get Big Mama's Outfit in GPO?

Source: Big Mama. Drop rate: 4%.

Is Big Mama's Outfit's value rising or falling?

Since Oct 15, 2026, the value has risen 17.9% (1.5K → 1.7K).

How is Big Mama's Outfit's value calculated?

Big Mama's Outfit'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.