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Case study · Financial risk

Tail-risk monitoring when correlations break

A multi-strategy asset manager rebuilt VaR and stress workflows on high-frequency, fat-tailed market data.

Industry
Asset management
Profile
Multi-strategy fund · $8B AUM
Timeline
Pilot in 38 days · BigQuery + internal OMS
+35%
VaR accuracy
90m
earlier alerts
99.9%
platform uptime

Summary

Risk committees were reacting to breaches after the fact. Predicta surfaced regime shifts and tail scenarios 1–2 hours earlier, with API-friendly outputs for the desk’s existing tooling.

The challenge

Overnight VaR runs missed intraday volatility clusters. Stress libraries were rebuilt manually when macro regimes shifted. Compliance wanted evidence trails — not another chart wall.

What we deployed

  1. 01Streamed BigQuery tick aggregates and internal position snapshots into Predicta’s regime-aware models.
  2. 02Calibrated fat-tail monitors with fund-specific liquidity constraints — not generic industry templates.
  3. 03Exposed threshold breaches through REST hooks into the existing OMS alert channel.
  4. 04Packaged stress narratives for the weekly risk committee in plain language.
BigQueryInternal OMSPredicta risk signalsTeams + email playbooks

Outcomes

  • VaR back-test accuracy improved 35% versus the legacy batch workflow.
  • Median alert lead time improved 90 minutes on high-severity tail events.
  • Platform uptime held at 99.9% through two volatility spikes without manual failover.
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