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Is C03B really profitable on Polymarket?

0x40604cb1f958c03bea0b18aa43e4cb0d62f33ec3

Short answer

Mostly yes. C03B made Polymarket's daily leaderboard on 83 days (2026-03-19 to 2026-10-03), adding up to $88K on those days. Their verified lifetime PnL is +$347K, at least as much as the board days imply, so the leaderboard is not hiding a pile of losing days. Recent windows from Polymarket: last week +$2K, last month +$41K.

All figures are Polymarket's own numbers (after trading fees), read from public APIs. How the verification works · All verified wallets

Read more: Is the Polymarket leaderboard accurate? · How to check a wallet's real PnL · Top Finance traders by verified PnL · Weekly reports · Methodology

Site-wide rank

Verified PnL beats 78% of the 624 wallets ProbPocket tracks.

Beats 78%Verified PnL#136 of 624
Beats 75%30-day PnL#149 of 594
Beats 84%Win rate#91 of 592
Beats 54%Return (PnL ÷ volume)#285 of 620

Compared with the 624 wallets that appeared on the daily Polymarket boards ProbPocket archives. Win rate needs ≥20 settled positions; return needs ≥$10,000 volume.

Days on board83
Archive span203 days
First seen2026-03-19
Last seen2026-10-03
VerdictHolds up

At a glance

$347K

Verified lifetime PnL

$30.16MVolume
85.3%Win rate (sample) · n=400
1.06%PnL ÷ Volume
$2K7-day PnL
$41K30-day PnL
2026-03 2026-10

Curve: summed PnL on archived board days.

Win rate from the most recent closed-positions sample the API returned; large books may be incomplete.

Loading official book…

Loading how it makes money…

Real PnL, line by line Stored copy · data as of 2026-11-01

Net PnL (official, fees already deducted)+$346.7K

For reference — already inside the official figure (fees deducted, rebates and rewards included), so not added or subtracted again

Trading fees paid≥ $2,795only the fills we could read — a floor
Rebates (maker + taker)$4,060partial
Liquidity rewards$5,537
1.15% ROI84.2% Win rate · n=405

Polymarket’s figure already has fees taken out; the lines below show where the money went. Not advice.

Trading styleBuys near-certain outcomes70% of 388 buys at ≥ 90¢Holds to settlementSells are only 7% of turnover in the last 500 fills (over 7.8 days)Read from recent fills; hover a tag for the numbers. A profile, not a signal to copy.

What it trades and where the money comes from

Realized PnL by market category, plus the five markets this wallet made and lost the most on.

Makes the most in Finance +$203.8K · loses the most in Sports -$8,041

Finance326 pos.+$203.8K
Crypto29 pos.+$60.8K
Politics6 pos.+$2,772
Culture2 pos.-$108
Sports37 pos.-$8,041

Top 5 winning markets

  1. +$45.1KWill WTI Crude Oil (WTI) hit (HIGH) $85 in August?Finance · Yes
  2. +$31.6KWill the price of Bitcoin be above $78,000 on April 24?Crypto · No
  3. +$20.6KWill WTI Crude Oil (WTI) hit (LOW) $80 in April?Finance · Yes
  4. +$12.4KCrude Oil (CL) Up or Down on March 18?Finance · Up
  5. +$10.4KWill WTI Crude Oil (WTI) hit (HIGH) $85 in July?Finance · Yes

Top 5 losing markets

  1. -$91.1KWill Natural Gas (NG) hit (LOW) $2.50 Week of April 20 2026?Finance · Yes
  2. -$9,255Indian Premier League: Mumbai Indians vs Sunrisers HyderabadSports · Sunrisers Hyderabad
  3. -$5,389WTI Crude Oil (WTI) closes above $79 on July 16?Finance · No
  4. -$5,115Indian Premier League: Kolkata Knight Riders vs Lucknow Super GiantsSports · Kolkata Knight Riders
  5. -$4,518Will Silver (XAGUSD) hit (LOW) $76 Week of May 11 2026?Finance · No

Covers the 400 closed positions with the largest gains and losses (the API pages by size); smaller positions are left out. Realized PnL of settled positions only; open positions are not counted. Data as of 2026-11-01

$347KVerified lifetime PnL
$259KEarned off the board
83Days on board
$88KBoard-day sum
$2K7-day PnL
$41K30-day PnL

Month by month

MonthDays on a boardSummed PnL
2026-03 2 $6K
2026-04 4 $25K
2026-05 15 $15K
2026-06 20 $10K
2026-07 15 $13K
2026-08 15 $14K
2026-09 11 $3K
2026-10 1 $776

Which boards

Finance 79Sports 3Crypto 2All markets 1

Method breakdown

Execution styleopen
Visible rebatesopen
Profit compositionnot measured yet

Measured layers

49% passive fills in the recent window; visible rebate $4K (77% maker / 23% taker)

Compare with another wallet

Curves, categories and core numbers side by side.

Execution style

mixed

Passive ratio49%
Fills measured500
Window ends2026-09-25
Window scopeMost recent

Visible rebates

Maker-rebate heavy

Visible rebate total$4K
Maker rebate$3K
Taker rebate$932
Maker share77%
Taker share23%
Window2026-04-02 → 2026-10-12

Profit composition

No same-window profit composition for this address yet. When measured, this layer uses the official activity feed (trade cash vs rebate) — not a guess from lifetime PnL.

Verification check

Holds up

Board-day sum$88K
Verified lifetime PnL$347K
Verification gap$259K

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Generated 2026-11-01 · archive 2026-03-19 → 2026-11-01 (203 snapshots)