Feed & Execution instruments

What this family is for

The three instruments are one measurement chain, which is why they ship as a family. The Broker Feed Auditor treats the published feed as a measurable object rather than a trusted one — inter-tick publication cadence, two-sided coordination structure, per-side staleness, spread regimes, and freeze and rollover behaviour at contract boundaries. The Microstructure Dashboard sits inside that subscription and is never sold standalone, because per-pair realized-volatility modelling, jump and liquidation shares, cost proxies and session structure only mean something measured against a feed whose fidelity you have already established.

The Execution Cost Auditor closes the loop from the other end. It computes transaction costs from your own imported statements: slippage distributions per fill, the spread regime in force at the moment of execution, and the session timing of realized cost. Together the three answer one question end to end — what does your broker’s feed do, and what did trading against it cost. Nothing in this family is a signal, and no measurement has been published yet.