Case library
Financial servicesHead of Market Surveillance

Analyst Augmentation at a Stock Exchange

Surveillance that read every filing by hand now reads everything — and escalates only what matters.

The scenario

A mid-sized European stock exchange's surveillance and research teams were drowning in volume: hundreds of filings, announcements and news items daily, with analyst capacity to review only a sample. The head of market surveillance framed the problem plainly: the risk was not that analysts worked too slowly, but that the unread 70% of material was where the next incident hid.

The exchange deployed a RAG layer over its full corpus of filings and listing rules, so analysts query the entire record in plain language and get answers with citations. Alongside it, an agent-drafted alert system reads every new filing and announcement, scores it against surveillance patterns, and drafts a short brief for anything unusual — anomaly, rationale, source links. Human analysts review every alert before any action, and only analysts can open an investigation.

The design deliberately kept accountability visible: regulators were briefed early, every agent decision is logged with its evidence, and the escalation rules were agreed with compliance before go-live rather than negotiated after an incident.

A year in, coverage is effectively total rather than sampled, time from filing to first analyst look has collapsed, and analysts report their job shifted from reading to judging — the part regulators actually want humans doing.

How AI enters the workflow

  1. Ingestion

    AI

    Every filing, announcement and relevant news item is ingested and indexed within minutes of publication.

  2. Pattern screening

    AI

    Agents score new material against surveillance patterns: unusual disclosures, trading-adjacent language, rule triggers.

  3. Alert drafting

    AI

    For flagged items, an agent drafts a brief: what is unusual, why it may matter, with source citations.

  4. Analyst triage

    Human

    A surveillance analyst reviews each alert, dismisses or deepens it, and may query the full corpus via RAG.

  5. Deep investigation

    Human + AI

    For real cases, the agent assembles timelines and related filings; the analyst directs and interprets.

  6. Escalation & action

    Human

    Only a human opens an investigation or contacts a listed company; the decision and rationale are logged.

  7. Model review

    Human + AI

    Compliance and surveillance leads review alert quality monthly and tune thresholds and rules.

Ask about this workflow

ADA, the taskforce deputy, explains exactly how human and AI share the work — ask anything.

The human + agent taskforce

Team leader — approves every deliverable

Team leader — approves every deliverable

Agents propose and execute. The human leader always approves the final result.

Outcomes

MetricBeforeAfter
Filing coverage~30% sampled100% screened
Filing to first analyst review2 days45 minutes
Analyst time on judgment vs reading35%75%

Key takeaways

  • Total coverage beats sampled coverage — AI changes what 'thorough' means in regulated oversight.
  • Citations in every alert made regulator conversations easy instead of defensive.
  • Escalation rules agreed with compliance before launch prevented the hardest governance fights.
  • Analysts moved from reading to judging; retention improved as a side effect.

Related concepts

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