Adriano Dal Pastro
9612560479
Nuova harness condivisa xslib.py (panel HL certificato, score per-asset causale, book long-k/short-k vol-targeted leak-free) + 43 script in runs/ su 11 famiglie (MOM/REV/VOL/ DIST/LIQ/VAL/STRUCT/UNIV). Scoring = earns_slot (full>0 AND hold-out>0 AND marginal ADDS al portafoglio live AND corr XS01<0.6, con jackknife drop-one-month). Find: 42/257 config earns_slot=True, ma TUTTE con corr TP01 -0.2..-0.4 e PnL ~solo 2025. Verify (verify_survivors.py, 3 scettici deterministici): - S1 redundancy: cluster low-vol = UNA scommessa (XV01=XU02=1.00, XV02/XV03 r 0.44-0.67); XM09/XL02/XS06b/XR02 distinti (corr media off-diag +0.20). - S2 short-beta: cluster low-vol carica 0.44-0.70 su short-market -> NON market-neutral, e' un tilt short-alt-beta di regime. XM09(0.08)/XR02(-0.21) NON short-beta. - S3 per-anno: cluster low-vol decade (XV01/XU02 2026 -0.09); XL02 morto (2025 -0.14, 2026 -0.43); XM09 (0.82/0.50/0.74) e XR02 (0.84/0.40/2.68) positivi in tutti e 3 gli anni. Esito: nessuna sleeve nuova. Cluster low-vol RIGETTATO (regime-bet), XL02 RIGETTATO (overfit). 2 LEAD genuini (XM09 trend-gated x-sec momentum, XR02 reversal vol-gated) -> forward-monitor, non deployabili (panel 2.5y regime unico + STAT-MODE esecuzione). Portafoglio live invariato. Incluso anche options_vrp_managed.py (A/B VRP01 hold-to-expiry vs gestione attiva del doc credit-spread): la gestione attiva DISTRUGGE l'edge (combo FULL managed Sh -1.29 vs HtE +0.96, il delta-exit taglia i vincenti) -> scartata, VRP01 resta hold-to-expiry. Diari: 2026-06-20-xsec-strategies-sweep.md, 2026-06-20-vrp-active-management.md. gitignore: data/paper_portfolio/ (stato runtime paper) + scripts/research/xsec/runs/out/ (output rigenerabile). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
84 lines
2.5 KiB
Python
84 lines
2.5 KiB
Python
"""XV01 — Low Realized-Volatility Anomaly
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MECHANISM: Score = -roll_std(ret, W) (long low-vol / short high-vol alts).
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The low-vol anomaly: lower-volatility assets tend to outperform on a risk-adjusted basis.
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Grid: W in {20, 30, 60}; universe in {all, majors}; long-short AND long-only.
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Goal: find a DISTINCT signal from XS01 (plain momentum) that ADDS to the live portfolio.
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"""
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import sys
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sys.path.insert(0, "/opt/docker/PythagorasGoal/scripts/research/xsec")
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import xslib as xs
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import numpy as np
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print("XV01 — Low Realized-Volatility Anomaly")
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print("=" * 60)
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# --- 5 targeted backtests ---
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# 1) Full universe, W=20 (short-term vol), LS — baseline low-vol on all alts
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rep1 = xs.study_xs(
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"XV01_ALL_W20_LS",
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lambda P: -xs.roll_std(P.ret, 20),
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universe="all", H=10, k=5, long_short=True
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)
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print(xs.fmt(rep1))
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print("JSON:", xs.as_json(rep1))
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print()
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# 2) Full universe, W=30, LS — medium-window vol (the main hypothesis)
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rep2 = xs.study_xs(
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"XV01_ALL_W30_LS",
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lambda P: -xs.roll_std(P.ret, 30),
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universe="all", H=10, k=5, long_short=True
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)
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print(xs.fmt(rep2))
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print("JSON:", xs.as_json(rep2))
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print()
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# 3) Full universe, W=60, LS — longer-window vol
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rep3 = xs.study_xs(
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"XV01_ALL_W60_LS",
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lambda P: -xs.roll_std(P.ret, 60),
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universe="all", H=10, k=5, long_short=True
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)
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print(xs.fmt(rep3))
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print("JSON:", xs.as_json(rep3))
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print()
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# 4) Majors only (19), W=30, LS — smaller universe, less noise
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rep4 = xs.study_xs(
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"XV01_MAJORS_W30_LS",
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lambda P: -xs.roll_std(P.ret, 30),
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universe="majors", H=10, k=5, long_short=True
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)
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print(xs.fmt(rep4))
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print("JSON:", xs.as_json(rep4))
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print()
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# 5) Full universe, W=30, long-only top-k (lowest vol, long only)
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# The "defensive" alt selection: pick alts with lowest realized vol
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rep5 = xs.study_xs(
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"XV01_ALL_W30_LO",
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lambda P: -xs.roll_std(P.ret, 30),
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universe="all", H=10, k=5, long_short=False
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)
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print(xs.fmt(rep5))
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print("JSON:", xs.as_json(rep5))
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print()
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# Pick best: prefer earns_slot, then hold-out sharpe, then full sharpe, then distinctness from XS01
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all_reps = [rep1, rep2, rep3, rep4, rep5]
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def score_rep(r):
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earns = int(r["earns_slot"])
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hold_sh = r["holdout"].get("sharpe", -9)
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full_sh = r["full"]["sharpe"]
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corr_xs01 = r["corr_xs01"] if r["corr_xs01"] is not None else 1.0
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distinctness = 1 - abs(corr_xs01) # higher = more distinct
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return (earns, hold_sh, full_sh, distinctness)
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best = max(all_reps, key=score_rep)
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print("=" * 60)
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print(f"BEST CONFIG: {best['name']}")
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print(xs.fmt(best))
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print("JSON:", xs.as_json(best))
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