Predex.dev

Predex.dev is a Polymarket trading terminal that routes orders under its own builder code, currently ranked #53 on the Predicts.guru leaderboard by all-time attributed volume. Polymarket has verified its builder profile, and since its first attributed fill on 2026-04-28 the venue has processed $10M across 213.3K fills.

The cohort behind that flow is small and consistently active: 24 wallets routed volume through it over the last thirty days, with 9 distinct traders a day and fills averaging $28, a size that points to retail accounts rather than desks. Category flow concentrates in sports, led by the market M15 Porto Velho: Eric Von Marton Martins vs Gabriel Schenekenberg, and 95.4% of routed volume opens new positions rather than closing them. Weekly flow moved -20.4% against the prior seven days, a swing worth watching against the $200K it routed most recently.

Every fill routed through Predex.dev carries the tool's builder code, which is how Polymarket and Predicts.guru credit the order to it rather than to the trader's wallet directly. That attribution is the whole basis for the #53 leaderboard position and the $10M counted against the tool: it measures where an order was routed, not who built the interface behind it.

Orders still settle through Polymarket's central limit order book on Polygon, so Predex.dev sits in front of that book rather than inside it. The operator does not publish a fee schedule, so what a trader pays is whatever the measured rate on their fills works out to, not a rate the tool advertises up front.

The cohort using it is thin and consistent rather than broad: 9 traders a day have kept 5.8K fills moving through it in the last week, with 140 days of routing behind it as of 2026-09-14. That length of history is enough to see a pattern, not enough to call it tested across a full market cycle.

• Retail-sized order flow

  Average fills near $28 point to individual traders sizing small positions rather than desks routing size, useful context before sizing your own order.

• Skewed toward opening trades

  95.4% of routed volume opens new positions rather than closing them, so the flow here says more about entries than exits.

• Continuous routing history

  Volume has continued routing through it since 2026-04-28, with the most recent fill landing as of 2026-09-14 and 140 days of history behind it.

Retail traders sizing small positions

Average fills near $28 suit accounts placing individual bets rather than desks moving size through a single route.

Traders opening new positions

With 95.4% of volume opening rather than closing trades, the flow here fits entries more than exits.

Traders in the top category

Flow concentrates in sports, with M15 Porto Velho: Eric Von Marton Martins vs Gabriel Schenekenberg the most traded market over the last thirty days, so traders following that category will find the deepest liquidity here.

Traders vetting fee transparency

The operator states no fee schedule, so cautious traders should confirm live costs directly before committing funds through this route.

Traders sizing against volume trend

Weekly volume moved -20.4% against the prior week, worth checking before assuming the current pace of $200K will hold.

Predex.dev publishes no fee schedule of its own, and the operator states no rate, discount tier or split of Polymarket's trading fee anywhere in its public materials. Polymarket's per-market trading fee applies the same way no matter which builder routes an order, so it says nothing about what distinguishes this one. Anyone weighing whether to route size through Predex.dev should ask the operator directly what a fill will cost before committing funds, and read $28 here as a guide to typical order size rather than to cost.

• It carries a verified builder profile on Polymarket, which confirms the routing is officially recognized rather than self-declared.
• Its 140 days of routing history since 2026-04-28 give enough of a track record to judge consistency, not just a launch week spike.
• A daily cohort of 9 traders and 24 wallets over thirty days shows steady use rather than a single burst of volume.
• Fills averaging $28 suit traders sizing individual positions rather than needing desk-scale liquidity.
• Volume of $10M across 213.3K fills is enough history to spot patterns in how the flow behaves.

• The operator publishes no fee schedule, leaving traders to find out what a fill costs only after routing money through it.
• A cohort of 24 wallets and 9 traders a day is thin, so the flow depends on a small group rather than broad adoption.
• Weekly volume moved -20.4% against the prior week, a swing traders should watch rather than assume will hold.
• With 95.4% of volume opening positions, the venue offers little evidence of how it handles traders closing out.

The operator does not state whether Predex.dev takes custody of a trader's funds at any point in the order path, so that is worth confirming directly before connecting a wallet. It is similarly silent on fees: no schedule, rate or discount tier appears anywhere in its public materials, which leaves a trader unable to check a fill's cost against anything published in advance. The bigger operational exposure is concentration: 24 wallets and 9 traders a day make up the entire tracked flow, thin enough that one account's activity can swing the numbers more than it would on a broader venue.

Predex.dev sits at #53 on the leaderboard with $10M in attributed volume and a cohort that trades small: fills averaging $28 and 95.4% of volume opening rather than closing positions. That profile fits a retail trader placing individual bets on sports markets like M15 Porto Velho: Eric Von Marton Martins vs Gabriel Schenekenberg, not a desk moving size.

The unresolved question is cost: the operator states no fee schedule, so nothing here confirms what a fill will cost until you route one. Traders comfortable confirming price before committing funds have a builder with a real, if modest, track record; anyone who needs published pricing upfront should look elsewhere first.

• What is Predex.dev?

  Predex.dev is a Polymarket trading terminal that routes orders under its own builder code, currently ranked #53 on the leaderboard with $10M in attributed volume since 2026-04-28.

• Is Predex.dev safe to use?

  The operator does not state whether it holds trader funds or publishes a fee schedule, so confirm both directly; the tracked cohort of 24 wallets is thin enough that one account can move the numbers.

• What are Predex.dev's fees?

  The operator publishes no fee schedule. Polymarket's own per-market trading fee applies the same way through every builder, so it does not distinguish this one, and a trader should ask directly before routing size.

• Who uses Predex.dev?

  A small, active cohort: 24 wallets and 9 traders a day, placing fills averaging $28 with 95.4% of volume opening new positions rather than closing them.

• What are Predex.dev alternatives?

  Predicts.guru ranks builders by attributed volume, so compare Predex.dev's #53 position and $28 typical fill size against other terminals before deciding where to route an order.

• How long has Predex.dev been operating?

  It has routed volume for 140 days since its first attributed fill on 2026-04-28, with figures complete through 2026-09-14, long enough to show a pattern but not a full market cycle.

• What does Predex.dev's trading volume look like?

  It routed $200K over the last seven days and $1.1M over the last thirty, a weekly change of -20.4% against the prior week and $10M all time.