Snapdex mirrors Polymarket signals, sub-second.
Snapdex is a non-custodial copy-trading signal engine for Polymarket. It listens to the source wallets you choose on Polygon, applies your own risk gates, and submits a mirrored order signed by your wallet — before the order book reprices. Your keys, your funds, your control.
Inside the Snapdex copy engine.
Six modules. Each runs in its own lane. The signal you see at the top of the leaderboard is the same signal the engine submits a mirrored order against.
Signal listener
Subscribes to CLOB events on Polygon. Decodes every tracked-wallet trade in milliseconds across redundant RPC providers.
Pre-flight risk gates
Per-trade hard cap, daily-loss circuit breaker, drawdown pause, liquidity floor, correlation cap, time-of-day window.
Bankroll-aware sizer
Proportional position sizing keyed to allocation budget and source-trade size. Slippage-aware at the order book level.
Local signer
EIP-4361 sign-in only. Mirrored orders dispatched to your wallet for local signature. The operator never holds a key.
Three-phase executor
Progressive price adjustments across three submission phases. Maximizes fill probability without walking thin books.
Audit telemetry
Live latency, fill rate, P&L attribution, per-stream correlation. Every position is a public Polygon transaction.
Set up Polymarket signal mirroring in four steps.
No coding required. Identical at $200 and $200,000 of starting allocation. Each step reversible; nothing custodial.
Connect
wallet.connect("metamask") · reads address only · never asks for transfer authority
Approve
usdc.approve(POLYMARKET_CLOB) · revocable allowance · funds remain in your wallet
Subscribe
select source wallets · set per-trader caps · liquidity floor · categories
Stream
listener spawns · risk gates arm · sign requests routed to your wallet on every signal
How Snapdex ranks source wallets.
Snapdex scores candidate wallets on resolved-market performance, consistency, and category fit, then lets you subscribe to the streams that match your risk. The sample below shows the columns the leaderboard exposes — every score is calibrated against settled markets on the Polymarket protocol. The deeper framework lives in the literature on prediction markets.
| rank | wallet | cat | win_rate | pnl_usd | 7d | trades | |
|---|---|---|---|---|---|---|---|
| 01 | 0x7f3d…8a2c | POL | 89.2% | +$247,830 | 234 | subscribe → | |
| 02 | 0x9a1f…4d7e | CRY | 76.5% | +$198,450 | 892 | subscribe → | |
| 03 | 0x3c8b…6f1a | SPT | 84.7% | +$176,920 | 156 | subscribe → | |
| 04 | 0x5e2a…9c3d | MAC | 71.3% | +$154,680 | 543 | subscribe → | |
| 05 | 0x1d7c…2b8f | POL | 68.8% | +$142,330 | 1,089 | subscribe → | |
| 06 | 0x8b4e…5c9a | CRY | 82.4% | +$128,760 | 287 | subscribe → | |
| 07 | 0x2f9d…3a1b | GEO | 73.9% | +$115,240 | 678 | subscribe → | |
| 08 | 0x6c3a…7e2d | SPT | 79.2% | +$98,590 | 412 | subscribe → |
Custodial vs. non-custodial signal flow.
Custodial signal services collapse into a single point of failure: the operator's deposit address. The non-custodial path keeps every guarantee that prediction markets on Polygon were architected to provide.
| property | non-custodial | custodial | manual |
|---|---|---|---|
| User holds keys | + yes | - no | + yes |
| Funds in shared address | + never | - required | + never |
| Sub-second mirroring | + <1s | ~ variable | - manual |
| Pre-submission risk gates | + enforced | ~ optional | - user only |
| Liquidity-floor filtering | + built-in | - rare | ~ eyeball |
| On-chain audit trail | + native | ~ internal | + native |
| Time-to-live | + ~2 min | ~ KYC delay | ~ hours |
Three tiers. All non-custodial.
USDC settlement on Polygon, Ethereum, Arbitrum, or BNB Chain. Cancel any time.
Starter
For new traders sizing a single mirrored signal stream cautiously.
- Up to 3 source wallets
- Per-trade hard cap
- Daily-loss circuit breaker
- Email + chat support
Professional
For traders running diversified signal streams with active correlation management.
- Up to 15 source wallets
- Liquidity-floor filtering
- Drawdown pause + correlation cap
- Priority support · advanced analytics
Enterprise
For desks deploying institutional signal workflows with bespoke risk policy.
- Unlimited source wallets
- Custom risk policy engine
- Webhook + API integration
- Dedicated solutions engineer
Built for traders who want copy trading without custody.
Discretionary traders
Set your risk parameters once and let Snapdex stream signals from the source wallets you trust. The non-custodial setup means your USDC never leaves your wallet.
Quant & systematic desks
Per-trade caps, daily-loss circuit breakers, and liquidity-floor filters give prediction-market exposure the guardrails that thin order books demand.
Self-custody purists
Authentication is a wallet signature, every order is signed locally, and the operator holds no keys. If Snapdex disappeared, your funds would not move.
Direct answers to the questions traders actually ask.
Read the full risk disclosure and documentation on the platform.
Open signal appWhat is Snapdex?
Is Snapdex really non-custodial?
How fast does Snapdex mirror a signal?
How much does Snapdex cost?
Which wallets does Snapdex support?
Can I copy multiple Polymarket wallets at once?
Does Polymarket itself ship copy trading?
What are the risks of copy trading on Polymarket?
Two minutes from this page to your first mirrored signal.
Your keys. Your funds. Your control. The on-chain signal of the network's top traders, running through your own wallet.