NoArb

NoArb is a Polymarket trading terminal, the category Predicts.guru assigns it based on how its order flow behaves rather than any feature list the operator publishes. It carries a verified profile on Polymarket and sits at rank #36 by all-time attributed volume, having moved $16.9M since its first attributed fill on 2026-04-28.

The flow it carries looks retail: average fill size sits at $74, and a mean of 7 distinct traders per day feeds it, with 11 wallets making up the trader cohort over the last thirty days. 60.6% of routed volume opens positions rather than closing them, and the busiest slice of that flow last month sat in Politics, led by Will there be no change in Fed interest rates after the September 2026 meeting. That pace contributes to 18.1K fills in the last week within a lifetime total of 182.4K.

A builder code is a tag Polymarket attaches to an order at submission, and NoArb's code is what lets Predicts.guru attribute $16.9M in lifetime flow to this terminal rather than to Polymarket's own interface or a competitor. Every order still lands in Polymarket's central limit order book on Polygon and settles the same way regardless of which builder tagged it, so routing through NoArb changes who gets credit for the flow, not how the trade clears.

Custody stays where it always does on Polymarket: the trader's own connected wallet holds funds and positions, and a builder code carries no ability to move them. What NoArb does control is the order flow it attracts, and the pattern in that flow says more about the tool than any interface description could. 60.6% of volume opens new positions, fill sizes average $74, and the 11 wallets active over the last thirty days are fed by a mean 7 traders a day, a small and fairly concentrated crowd rather than a mass retail funnel. It has been active for 140, live since 2026-04-28.

• High fill frequency

  Fills land in rapid succession rather than occasionally, with 18.1K recorded in the last week alone, useful if you need consistent liquidity turnover rather than one off execution.

• Buy-heavy order flow

  60.6% of routed volume opens new positions, so traders looking to use it mainly for exits are a minority; check that this matches your plan.

• Retail-sized fill activity

  Average fill size of $74 suits position sizing in the tens or low hundreds rather than the four-figure clips larger desks tend to run.

High-frequency intraday traders

The fill cadence, 18.1K in the last week, suits traders cycling in and out of positions quickly rather than holding for weeks.

Small, retail-sized position traders

Average fill size of $74 fits accounts sizing trades in the tens or low hundreds rather than four-figure desk clips.

Politics-focused market traders

The largest slice of volume last month sat in Politics, led by Will there be no change in Fed interest rates after the September 2026 meeting, so traders in that lane already cross this flow.

Traders who check costs themselves

Since the operator states no fee rate, this suits traders willing to check the effective cost against the spread before committing size.

Traders opening rather than closing

60.6% of volume opens positions, so it fits traders building exposure more than those primarily unwinding existing ones.

NoArb publishes no fee schedule of its own; the operator states no rate, so there is nothing to quote beyond the trading fee Polymarket itself sets per market, which applies the same regardless of which builder routed the order. That means the cost of using NoArb is not something this page can hand you as a number to compare. What is worth checking before routing size is the spread and slippage you actually get filled at, since a terminal with $74 averaging in the tens of dollars is a different execution environment from one clearing four-figure blocks. Watch the fill price against the book rather than assuming a builder tag changes what you pay.

• Fill activity is current: figures run through 2026-09-14, with the terminal still recording volume as of that date.
• The cadence of 18.1K fills in the last week gives a trader plenty of recent data to judge before committing money.
• A majority buy share of 60.6% means the terminal is used mainly to enter positions, which is straightforward to plan around.
• Weekly volume of $2.1M carries a +91.1% shift from the prior week, a figure worth checking fresh each time rather than assuming it holds.
• The largest share of last month's flow sat in Politics, useful if that is the lane you already trade.

• It publishes no fee schedule, so a trader has to work out the real cost by watching the spread rather than reading a rate.
• The trader cohort is thin, only 11 wallets over thirty days, so the flow depends on a small group rather than a broad crowd.
• Rank #36 by all-time volume is a figure worth weighing against how much liquidity depth a trader actually needs, since scale and depth tend to move together.
• First fill dates to 2026-04-28, a track record measured in months rather than years.
• Mean traders per day of 7 is a small number, so a quiet week can swing the metrics more than it would for a busier venue.

Custody is not this builder's to take: Polymarket's architecture keeps funds and positions in the trader's own connected wallet regardless of which builder code tagged the order, so routing through NoArb does not hand it control of a balance. Where NoArb is less forthcoming is fee transparency: it states no rate, leaving a trader to infer the real cost from execution rather than a published number. Operationally, the flow is thin, a cohort of 11 wallets and a mean of 7 traders a day, so an outage or a bad fill affecting one active account would move the aggregate figures more visibly than it would if the cohort were larger.

NoArb functions as a trading terminal with a small, buy-heavy, retail-sized flow: average fills of $74, a cohort of 11 wallets, and volume that moved $2.1M over the last week. That profile fits a trader who wants to route modest, frequent orders and is comfortable checking execution quality rather than reading a published fee sheet, since the operator states none. It suits someone already trading Politics markets who values current activity over scale. It is a weaker fit for a trader who needs deep, four-figure liquidity or a long track record to lean on, since rank #36 and a first fill on 2026-04-28 are the numbers to weigh against that need.

• What is NoArb on Polymarket?

  NoArb is a Polymarket trading terminal that routes order flow into the exchange under its own builder code, ranked #36 by all-time attributed volume of $16.9M.

• Is NoArb safe to use?

  Funds stay in the trader's own connected wallet under Polymarket's standard custody model regardless of builder code, but NoArb states no fee rate, so check execution quality yourself before routing size.

• What are NoArb's fees?

  NoArb publishes no fee schedule of its own; Polymarket's per-market trading fee applies the same regardless of builder, so the only way to judge cost is watching the spread and slippage on your fills.

• How big is NoArb's trading volume?

  NoArb has routed $16.9M in attributed volume since its first fill on 2026-04-28, with $2.1M moving in the last seven days and $6M over the last thirty.

• Who trades through NoArb?

  A mean of 7 distinct traders a day feed it, with 11 wallets making up the thirty-day cohort, a small and concentrated group rather than a broad retail crowd.

• Is NoArb good for entering or exiting positions?

  60.6% of routed volume opens new positions rather than closing them, so it is used more for entering trades than for unwinding existing ones, a pattern worth matching to your own trading style.

• How long has NoArb been active on Polymarket?

  NoArb has been live since 2026-04-28, 140 of recorded activity through 2026-09-14, a track record still short of a full multi-year market cycle, so treat its history as a partial rather than a proven sample.