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Markets/Vol · Index Gold

Tail Probability Shift (TPS)

Enables traders to detect early-stage increases in fat-tail risk to prevent catastrophic drawdowns during market stress events.

Refresh
daily
History
9 yrs
Plan
Gold
96.9/ 100
Rising

S&P 500 (SPY)

2017-06-28 9 yrs · 2,261 pts 2026-06-26

Top drivers

tail_prob_shiftrecent_tail_probbaseline_tail_prob
⌁ mcp.call("adw-102") vADW-102-live-1.0
Use cases

What it unlocks

For an agent

A drawdown-protection agent running on a long-only equity fund monitors ADW-102 in real time; when tail_prob_shift (P_recent minus P_base) is positive and the 0-100 score exceeds 80 — the current reading is 96.9, at the 86th percentile of a 2,261-day history that has ranged 5.4 to 100 — it automatically reduces gross exposure by 15% and submits a limit-order ladder to reduce the largest single-name positions, citing the IOM's confidence field and source_lineage in the order record for post-event review. The methodology_version pins the 1.5-sigma threshold and 20-day P_recent window so back-testing teams can replay the exact signal used in each trade.

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For the business

A risk desk at an asset management firm uses ADW-102's tail_prob_recent and tail_prob_baseline fields during weekly risk-committee reviews to quantify whether the current fat-tail environment is meaningfully above the one-year baseline — a judgment that previously required a quant to run bespoke GARCH tail simulations. At a current score of 96.9 the desk can document that the 20-day exceedance rate is in the top 14% of all readings since mid-2017, providing a defensible, model-agnostic basis for requesting additional margin collateral from counterparties.

Forward outlook

Prediction

Horizon
Recommended use
Detect early fat-tail risk elevation. Score > 65 = recent tail frequency exceeds base; review crash-protection positions.
Methodology

How it's built

252-day baseline σ → threshold T=1.5σ → P_base + P_recent (20-day) tail exceedance rates → Shift = P_recent−P_base → sigmoid → 0-100

Stooq daily OHLCV (SPY, keyless)

Version ADW-102-live-1.0 · validated to beat a naive baseline · benchmark: none