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In backtest, only 21% of 0xc851…cd2a's buys could be fully copied at a 5-minute delay

Politics 0xc851cd9bee7d262afd78674f861f9f576a12cd2a Profile on Polymarket

Only 21% of this trader's buys could be fully copied at a 5-minute delay, and another 17% only partly; the −$3,913 comes from the part you could copy. A copier who mirrored 0xc851…cd2a's 584 buys across 47 markets with a 5-minute delay and $100 per trade would have ended at −$3,913. The leader lost $6,047 at the same size, so there were no returns to keep: the delay helped by +$2,475, slippage $19.57 and fees $321.09. In the backtest, this simulated copy would have tied up to $9,052 at once across 221 positions.

Copy delay

Each time the trader buys, the simulation copies this much. Not a total budget.

Key numbers

Follower PnL
−$3,913
Incl. estimates −$14,203
Max drawdown −$3,939
ROI −25.9% on total cost
Returns kept
n/a (The leader lost money at this size, so there were no returns to keep)
Leader, same size −$6,047
leader lost money
Peak capital in use
$9,052
Incl. estimates $28,584
584 copied buys · $15,082 total cost
Fill rate
21%
Most buys couldn't be fully copied
Incl. estimates 61%
124 filled · 97 partial · 363 no buyers
Backtest score
20/100
584 buys · 47 markets

The headline numbers only count what real trades in the 10 minutes after the delay prove. “Including estimates” also counts the unproven part of a buy when order-book or trading-volume evidence says it was fillable, at an estimated price. Treat it as an upper view, not a promise. 309 estimated: 144 high · 95 medium · 70 low · 134 thin How we estimate

Cumulative PnL across all copied positions

X axis
Max drawdown −$3.9k

Final values: 0 min: −$5,704; 1 min: −$5,056; 5 min: −$3,913; 30 min: −$2,833. Max drawdown −$3,939 (5 min, Oct 23). Hover or use the arrow keys to read values.

Chart data by day
Day (UTC)0 min1 min5 min30 min
Sep 21−$625.94−$409.47−$416.24−$201.28
Sep 22−$347.37−$104.95−$198.38−$66.50
Sep 23−$402.88−$173.46−$334.53−$512.58
Sep 24−$729.46−$499.97−$572.09−$752.16
Sep 25−$847.03−$617.56−$622.98−$781.19
Sep 26−$855.79−$703.14−$697.99−$899.21
Sep 27−$1,049−$898.05−$810.15−$942.69
Sep 28−$1,075−$903.02−$815.13−$943.09
Sep 29−$1,772−$1,497−$1,335−$1,352
Sep 30−$1,772−$1,497−$1,335−$1,352
Oct 1−$2,070−$1,881−$1,689−$1,470
Oct 2−$2,263−$2,053−$1,870−$1,487
Oct 3−$2,459−$2,286−$2,159−$1,559
Oct 4−$2,459−$2,286−$2,159−$1,559
Oct 5−$2,459−$2,286−$2,159−$1,559
Oct 6−$2,459−$2,286−$2,159−$1,559
Oct 7−$2,468−$2,292−$2,165−$1,575
Oct 8−$2,672−$2,497−$2,165−$1,575
Oct 9−$2,926−$2,732−$2,297−$1,602
Oct 10−$3,098−$2,841−$2,303−$1,702
Oct 11−$3,318−$3,049−$2,324−$1,702
Oct 12−$3,772−$3,455−$2,623−$1,881
Oct 13−$4,240−$3,862−$2,924−$2,120
Oct 14−$4,470−$4,079−$2,968−$2,407
Oct 15−$4,544−$4,076−$3,045−$2,396
Oct 16−$4,471−$4,007−$3,001−$2,324
Oct 17−$4,549−$4,013−$3,127−$2,429
Oct 18−$4,549−$4,013−$3,127−$2,429
Oct 19−$4,807−$4,207−$3,269−$2,412
Oct 20−$4,681−$4,091−$3,185−$2,315
Oct 21−$4,590−$3,994−$3,103−$2,302
Oct 22−$5,447−$4,798−$3,650−$2,572
Oct 23−$5,540−$5,087−$3,939−$2,864
Oct 24−$5,735−$5,087−$3,939−$2,864
Oct 25−$5,704−$5,056−$3,913−$2,833

Every delay side by side

DelayFollower PnLKeptFilled
0 min−$5,704n/a (The leader lost money at this size, so there were no returns to keep)28%
1 min−$5,056n/a (The leader lost money at this size, so there were no returns to keep)24%
5 min (selected)−$3,913n/a (The leader lost money at this size, so there were no returns to keep)21%
30 min−$2,833n/a (The leader lost money at this size, so there were no returns to keep)14%

Where the returns go

  1. Leader PnL at your size−$6,047
  2. Delay helped+$2,475
  3. Slippage−$19.57
  4. Fees (buys $284.86 · sells $36.23)−$321.09
  5. Follower PnL−$3,913

Leader PnL is scaled to your per-trade size. Delay cost is the price move between the leader's fill and yours; slippage is walking the book to fill your size; fees use the 2026 fee schedule. Methodology.

By category

CategoryTradesFollower PnLROI
Politics572−$3,941−27.1%
Geopolitics4−$128.00−85.3%
Sports4+$134.75+44.9%
Economy2$0.000.0%
Finance2+$21.07+21.1%

Data version 12074 · computed Oct 26, 2026 · 428 unsettled positions marked at the last traded price.

Trades

Each leader buy and the copy we simulated at the selected delay. Open “Details” to see the market fills behind the copy price.

How fills are simulated: a copy can only fill against real taker buys of the same outcome within 10 minutes after the delay, so the headline numbers are conservative. Fill basis adds a second opinion: where no trade proved a fill, order-book or volume evidence may say the size was still fillable (an estimate, never in the headline). Methodology.

Filled whole order · Partial (NN%) part of it · No buyers nobody bought in the window — not counted · Data not in yet too recent to evaluate

Show
Order
Date Market Leader price Copy price Fill Fill basis Follower PnL Details
Trades load from the live API when this section is visible.
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More Politics traders

See the full Politics copyability board, read the methodology, or learn how slippage and fees eat into copied returns.

This is a simulation built from historical on-chain fills; it is not a record of real copy trades. Past results don't predict future results. Only the wallet address and its public Polymarket name are shown.