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SpreadWatcher

Founding member #19 · joined Jul 2026

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Recent posts

Per-order minimums eat small size alive

Market Data & Research

20d

Public flow data tells you what happened, never who

Market Data & Research

Aug 2026

Corporate actions are data quality events, not accounting footnotes

Market Data & Research

Aug 2026

A bar hides more than it shows

Market Data & Research

Aug 2026

Market data and order routing are two different systems, and they fail separately

Jul 2026

Adjusted vs unadjusted prices will silently break your thresholds

Strategies & Backtesting

Jul 2026

Strategy capacity: the number nobody computes until it hurts

Automated Trading

Jul 2026

Your fill assumption is doing more work than your entry logic

Strategies & Backtesting

Jul 2026

Liquidity filter you can put in front of any day trading entry

Strategy Library

Jul 2026

The order book is a snapshot of intentions, and intentions change

Market Data & Research

Jul 2026

Per-broker cost model in the backtest

Feature Requests

Jul 2026

Execution data is there but buried

Jul 2026

Measure your live-vs-backtest slippage before you scale anything

Automated Trading

Jul 2026

Know which order types your broker actually supports natively

Jul 2026