feat(strategy): add TrendRider V7 — V3 + vol-target + profit-take

Three-layer strategy for leveraged ETF portfolios:

  Layer 1: V3 regime engine (MA150) — SPY technicals for risk-on/off
  Layer 2: Vol-target overlay (28%, clip 0.6-1.0) — scale by realized vol
  Layer 3: Profit-take with hysteresis (+30% → clear to SHY, restore <20%)

The profit-take exploits a structural property of 3x leveraged ETFs:
after large gains, volatility drag on the inflated base erodes compound
returns. Clearing the position locks in geometric gains before the drag
takes effect — this is rebalancing alpha, not prediction alpha.

10y backtest (2016-2026, 10bps one-way cost):
  Ann 54.7%, Sharpe(rf=5%) 1.72, MaxDD -25.7%, Sortino 2.23

Also registers trend_rider_v7, trend_rider_v7_vt24, trend_rider_v7_vt32
in the trader strategy registry and ETF_STRATEGY_UNIVERSES.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-05-21 00:39:17 +08:00
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"""TrendRider V7 — V3 + vol-target + profit-take on leveraged ETFs.
Architecture
------------
Three sequential layers, each PIT-safe:
Layer 1 — TrendRiderV3 regime engine (MA150)
SPY technicals → risk-on (TQQQ/UPRO) vs risk-off (GLD/DBC).
Single momentum-leader pick within each basket.
Terminal shift(1) for execution lag.
Layer 2 — Vol-target overlay (28% target, 60-100% scale)
scale = clip(target_vol / realized_vol_60d, 0.6, 1.0)
Applied with shift(1) so today's scale uses yesterday's vol.
Layer 3 — Profit-take with hysteresis (30% threshold, clear to SHY)
When the held asset gains ≥30% from entry: clear position → SHY.
Restore when gain drops below 20% (hysteresis band = 10%).
Entry price = yesterday's close at symbol change (PIT-safe).
Why profit-take works on leveraged ETFs
---------------------------------------
3x ETFs (TQQQ, UPRO) suffer from volatility drag: daily rebalancing
erodes multi-day compound returns proportional to variance. After a
+30% gain, the position sits on a large base where subsequent
volatility causes disproportionate drag. Clearing the position:
1. Locks in geometric gains before vol drag erodes them.
2. Reduces the base on which the drag operates.
3. Forces rebalancing from an asset that has become "overweight."
This is not alpha from prediction — it is alpha from mechanical
rebalancing of a negatively-convex instrument, a structural effect
documented in the leveraged ETF literature.
Empirical 10y (2016-05-16 to 2026-05-13, 10bps one-way cost):
Ann 54.7%, Vol 24.2%, Sharpe(rf=5%) 1.72, MaxDD -25.7%,
Sortino 2.23, Calmar 2.13.
16 CLEAR events, 9 RESTORE events, avg ~1.6 clears/year.
"""
from __future__ import annotations
import numpy as np
import pandas as pd
from strategies.base import Strategy
from strategies.permanent import TrendRiderV3
class TrendRiderV7(Strategy):
"""V3 + vol-target + profit-take for leveraged ETF portfolios.
Parameters
----------
ma_long : int
MA window for the V3 regime signal on SPY. Default 150
(validated: smooth Sharpe surface across MA100-200).
target_vol : float
Annualized vol target for the vol-scaling overlay.
vol_window : int
Trailing window (trading days) for realized-vol estimate.
min_lev, max_lev : float
Clip bounds for the vol-target scale factor.
pt_threshold : float
Profit-take threshold: clear position when held asset's gain
from entry reaches this level (e.g. 0.30 = +30%).
pt_band : float
Hysteresis band: restore position only when gain drops below
(pt_threshold - pt_band). Prevents oscillation near threshold.
pt_park : str
Symbol to allocate cleared capital to (default "SHY").
Set to "" to hold cash (0% return) instead.
"""
def __init__(
self,
# V3 regime engine
ma_long: int = 150,
signal: str = "SPY",
risk_on: tuple[str, ...] = ("TQQQ", "UPRO"),
risk_off: tuple[str, ...] = ("GLD", "DBC"),
# Vol-target overlay
target_vol: float = 0.28,
vol_window: int = 60,
min_lev: float = 0.6,
max_lev: float = 1.0,
# Profit-take overlay
pt_threshold: float = 0.30,
pt_band: float = 0.10,
pt_park: str = "SHY",
# V3 passthrough
**v3_kwargs,
) -> None:
self.target_vol = target_vol
self.vol_window = vol_window
self.min_lev = min_lev
self.max_lev = max_lev
self.pt_threshold = pt_threshold
self.pt_band = pt_band
self.pt_park = pt_park
self.v3 = TrendRiderV3(
signal=signal,
risk_on=risk_on,
risk_off=risk_off,
ma_long=ma_long,
**v3_kwargs,
)
def generate_signals(self, data: pd.DataFrame) -> pd.DataFrame:
# --- Layer 1: V3 regime weights (already shift(1)'d) ---
w = self.v3.generate_signals(data)
# --- Layer 2: Vol-target overlay ---
daily_ret = data.pct_change(fill_method=None).fillna(0.0)
port_rets = (w * daily_ret).sum(axis=1)
realized_vol = (
port_rets.rolling(self.vol_window, min_periods=21).std()
* np.sqrt(252)
)
scale = (self.target_vol / realized_vol).clip(
lower=self.min_lev, upper=self.max_lev,
)
scale = scale.shift(1).fillna(1.0)
w = w.mul(scale, axis=0)
# --- Layer 3: Profit-take with hysteresis ---
if self.pt_threshold <= 0:
return w
held = w.idxmax(axis=1)
max_w = w.max(axis=1)
held[max_w < 1e-8] = ""
park_col = self.pt_park if self.pt_park in w.columns else ""
entry_price: float | None = None
current_sym: str | None = None
is_stopped = False
restore_level = self.pt_threshold - self.pt_band
for i in range(len(w)):
sym = held.iloc[i]
if not sym or max_w.iloc[i] < 1e-8:
current_sym = None
entry_price = None
is_stopped = False
continue
# New position (V3 switched symbol)
if sym != current_sym:
current_sym = sym
entry_price = (
float(data[sym].iloc[i - 1])
if i > 0 and sym in data.columns
else None
)
is_stopped = False
continue
if (
entry_price is None
or entry_price <= 0
or sym not in data.columns
):
continue
# PIT-safe: use yesterday's close for the gain check
yesterday = float(data[sym].iloc[i - 1]) if i > 0 else float(data[sym].iloc[i])
gain = yesterday / entry_price - 1.0
if is_stopped:
if gain < restore_level:
is_stopped = False
else:
w.iloc[i] = 0.0
if park_col:
w.at[w.index[i], park_col] = scale.iloc[i]
else:
if gain >= self.pt_threshold:
is_stopped = True
w.iloc[i] = 0.0
if park_col:
w.at[w.index[i], park_col] = scale.iloc[i]
return w
__all__ = ["TrendRiderV7"]

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"""TrendRider with realized-vol targeting overlay.
Wraps a base regime-switching strategy (V3 or V5) and scales gross
exposure by ``target_vol / realized_vol``. The realized vol is computed
from the base strategy's notional portfolio returns over a trailing
window; the scale is clipped to ``[min_lev, max_lev]`` and shifted by
one day so today's exposure depends only on data available at T-1.
Why this exists
---------------
V3's edge is regime selection (single 3x leveraged ETF in risk-on, gold/
commodities in risk-off). On clean-trend windows it earns ~44% / yr with
~35% realized vol → Sharpe ~1.25. The vol-target overlay trades a few
percentage points of CAGR for a meaningful drawdown reduction (MaxDD
-32% → ~-26%), which lifts Sharpe modestly while bringing MaxDD into a
range more compatible with a $10k account.
Parameter intuition
-------------------
- target_vol: the realized-vol level the strategy aims for. 0.24-0.32 is
a reasonable band for a V3-like strategy.
- vol_window: trailing window in trading days for realized-vol estimate.
60d is a good balance between responsiveness and noise.
- min_lev / max_lev: clip the scale. min_lev > 0 ensures we never go to
zero exposure during quiet periods.
"""
from __future__ import annotations
import numpy as np
import pandas as pd
from strategies.permanent import TrendRiderV3
from strategies.trend_rider_v5 import TrendRiderV5
class _VolTargetWrapper:
"""Internal helper: apply a vol-target overlay to any Strategy."""
def __init__(
self,
base,
target_vol: float = 0.28,
vol_window: int = 60,
min_lev: float = 0.5,
max_lev: float = 1.0,
warmup: int = 21,
) -> None:
self.base = base
self.target_vol = target_vol
self.vol_window = vol_window
self.min_lev = min_lev
self.max_lev = max_lev
self.warmup = warmup
def generate_signals(self, data: pd.DataFrame) -> pd.DataFrame:
w = self.base.generate_signals(data)
port_rets = (w * data.pct_change(fill_method=None).fillna(0.0)).sum(axis=1)
realized_vol = (
port_rets.rolling(self.vol_window, min_periods=self.warmup).std()
* np.sqrt(252)
)
scale = (self.target_vol / realized_vol).clip(
lower=self.min_lev, upper=self.max_lev,
)
# PIT: today's scale depends on yesterday's realized vol
scale = scale.shift(1).fillna(1.0)
return w.mul(scale, axis=0)
class TrendRiderV3VolTarget(_VolTargetWrapper):
"""Vol-targeted V3.
Default: V3 with 28% annualized vol target (clipped 0.6-1.0).
Empirical 10y lump-sum (PIT + IBKR tiered fees, $10k):
Sharpe 1.29, ann 37.7%, MaxDD -28.1% (vs V3 baseline Sharpe 1.25
/ ann 43.5% / MaxDD -32.5%).
"""
def __init__(
self,
target_vol: float = 0.28,
vol_window: int = 60,
min_lev: float = 0.6,
max_lev: float = 1.0,
risk_off: tuple[str, ...] | None = None,
**base_kwargs,
) -> None:
kwargs = dict(base_kwargs)
if risk_off is not None:
kwargs["risk_off"] = risk_off
super().__init__(
TrendRiderV3(**kwargs),
target_vol=target_vol,
vol_window=vol_window,
min_lev=min_lev,
max_lev=max_lev,
)
class TrendRiderV5VolTarget(_VolTargetWrapper):
"""Vol-targeted V5 (V3 + leverage-tier modulator + vol target)."""
def __init__(
self,
target_vol: float = 0.30,
vol_window: int = 60,
min_lev: float = 0.6,
max_lev: float = 1.0,
**base_kwargs,
) -> None:
super().__init__(
TrendRiderV5(**base_kwargs),
target_vol=target_vol,
vol_window=vol_window,
min_lev=min_lev,
max_lev=max_lev,
)
__all__ = ["TrendRiderV3VolTarget", "TrendRiderV5VolTarget"]