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Trading Articles

14 posts tagged “trading”.

polymarket trading clv

We Audited Our Own Trading Bot's Fill Prices. 74% Were Wrong — Against Us.

A five-day engineering log: how our Polymarket trading bot recorded limit prices instead of real fills, how we reconciled every historical trade against...
results trading polymarket

Weekly Trading Results Archive — Every Week, Including the Losing Ones

Rolling archive of ZenHodl's weekly live Polymarket results — record, per-sport P&L and win rate for every week, losing weeks included.
polymarket trading python

How to Build a Polymarket Bot in Python: Architecture, Components, and What Actually Matters

Practical architecture guide for building a Polymarket trading bot in Python in 2026 — the eight components you need, how they fit together, what to build...
polymarket prediction-markets market-microstructure

Polymarket Fees Explained: Maker, Taker, and the CLOB Fee Schedule in 2026

Learn how Polymarket CLOB V2 fees work: per-market taker fees, zero maker fees, rebates, the fee curve, Polygon gas, and breakeven edge.
results polymarket trading

Polymarket Trading Bots in the Wild: A Full Breakdown of Our On-Chain P&L by Market Type

Corrected: our Polymarket trading bots are not profitable in aggregate. See the full retraction and per-market-type P&L breakdown, kept for reference.
polymarket trading results

Our Polymarket Trading Results: An Early Snapshot, and a Correction

An April 2026 snapshot of our Polymarket bots, plus a correction: the win rate and the on-chain claim were wrong. The live ledger is on /results.
polymarket trading strategy

How Our Polymarket Trading Bots Work — Strategy, and a Correction

Our bots' architecture, plus a correction: this post once published a +$2,400 P&L that was never true. Real figure: -$217.75 over 2,214 live trades.
results debugging polymarket

How We Improved 5 Trading Bots in One Week

We audited every bot, found the gaps between backtest and live performance, and fixed them. CS2, NBA, MLB, LoL, and Tennis — five different problems, five...
strategy polymarket prediction-markets

Hold to Settlement: Why We Never Sell Our Prediction Market Positions

Every one of our bots holds to settlement instead of trading actively. Why patience beat activity on Polymarket, and the strategies that failed.
results polymarket trading

We Run 5 Bots Across 8 Sports — Here's What's Actually Profitable

Real P&L from 5 live Polymarket bots trading NBA, MLB, NHL, NCAAMB, CS2, LoL, Tennis, and Soccer. Honest about what works and what doesn't.
polymarket python api

Polymarket API Python Tutorial: Connect, Fetch Orderbooks, and Place Trades

Step-by-step Polymarket CLOB API guide in Python: authentication, reading orderbooks, fetching market data, and placing limit orders programmatically.
trading market-microstructure backtesting

99% of Your Backtested Edge Doesn't Exist: Execution Quality on Prediction Markets

We backtested 237 trade signals with and without execution constraints. 99% of theoretical profit vanished. Here's what actually kills your trades — and...
infrastructure python historical-data

Stream Live Sports Data with WebSockets in Python

How to get real-time sports scores using WebSockets in Python. Compares HTTP polling vs WebSocket streaming, with working code for building a live data feed.
sports-betting trading beginner

How Prediction Market Bots Work (And How to Build One)

A beginner's guide to automated trading on Polymarket. Learn how bots find edges using win probability models, and how to build your own.