Actuary

Fast IBNR & ultimate with a full audit trail. Chain-Ladder, Mack (uncertainty), Bornhuetter–Ferguson; side-by-side variants and export.

H1: For actuaries
Lead: From triangles to decisions in hours—not days—with full reproducibility.

What you’ll do

• Calculate IBNR / ultimate using Chain-Ladder, Mack, Bornhuetter–Ferguson.

• Control lookback window, tail factor, weights; view uncertainty bands (Mack).

• Compare Base vs V1/V2… (absolute values + % deltas) on chart & matrix.

• Export PDF/CSV with all parameters (complete audit trail).

Why it works

• Speed (GPU): runs finish in minutes.

• Transparency: every result = data + parameters + user + timestamp.

• Reproducibility: outcomes can be replayed 1:1 for audit.

Demo-style numbers

• • IBNR: PLN 12.4m (±7%), ultimate: PLN 84.1m.

  • Variant V1 (shorter window): IBNR −3.2% vs Base.