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Jack Chen

Independent Binance & OKX fee-rebate channel — up to 40% back, weekly USDT. Free fee calculator: https://www.jacktrader.xyz/en/

Joined on Jun 10, 2026

Jack Chen

Jul 13

Modeling the blended fee rate of a mixed-tier trading community

#python #trading #crypto #datascience

2 min read

Jack Chen

Jul 11

Default fee configs in Hummingbot, Freqtrade, and OctoBot are all wrong — differently

#trading #python #crypto #datascience

2 min read

Jack Chen

Jul 10

Maker-taker economics for grid bots: when post-only actually pays

#python #crypto #trading #datascience

2 min read

Jack Chen

Jul 7

The payout math of running a trading community (a 3-variable model)

#python #crypto #finance #datascience

2 min read

Jack Chen

Jun 17

I open-sourced every Binance and OKX 2026 fee tier as JSON (+ a calculator)

#python #opensource #crypto #api

3 min read

Jack Chen

Jun 15

The Fee Assumption Quietly Wrong in Most Backtests

#crypto #trading #algotrading

5 min read

Jack Chen

Jun 10

Grid Bot Fees Are Quietly Eating Your Returns: The Quant Fee Checklist

#crypto #trading #python

2 min read

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