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🟡 Research note · May 17, 2026 · Updated · superseded by Borrow-Cost Correction: Synthetic LETF Methodology + Revised Numbers

Full Leverage Spectrum: 1x/2x/3x × B&H/SMA200 across 5 Underlyings

Leveraged ETFs #leverage#vol-decay#spy#qqq#sox#gold#silver

Full Leverage Spectrum: 1x/2x/3x × B&H/SMA200 across 5 Underlyings

Question

The earlier per-underlying analysis covered 1x and 3x only. This study fills in 2x AND adds gold + silver (the metals in a sample heavy-leveraged portfolio) to map the full leverage spectrum. The questions:

  1. Where's the break-point at which leverage starts hurting B&H returns?
  2. Does the SMA200 filter help or hurt at each leverage level?
  3. For the 2x ETFs specifically (USD, QLD, SSO, UGL, AGQ), is there enough vol decay to matter?
  4. What's the optimal leverage × strategy combo per underlying?

Methodology

  • Window: 2000-08-30 → 2026-05-18 (25.7 years, common-start for SPY/QQQ/^SOX/gold/silver)
  • Synthetic LETFs: (1 + leverage × daily_return − expense_ratio/252).cumprod(). ER = 0.91% for 2x and 3x; 0% for 1x.
  • SMA200 strategy: Long when underlying > 200-day SMA, cash otherwise. Position lagged 1 bar.
  • Cost: 1bp per side on position changes.
  • Underlyings: SPY (SSO=2x, UPRO=3x), QQQ (QLD=2x, TQQQ=3x), ^SOX (USD=2x, SOXL=3x), GC=F gold (UGL=2x, no 3x ETF), SI=F silver (AGQ=2x, no 3x ETF)
  • Starting capital: $10,000

Results

Full table (sorted by underlying, then leverage, then strategy)

Underlying Lev Strategy CAGR MDD Vol Sharpe $10k →
SPY 1x B&H 8.33% -55.19% 19.19% 0.513 $77,824
SPY 1x SMA200 7.42% -20.85% 11.02% 0.704 $62,698
SPY 2x B&H 12.05% -83.88% 38.38% 0.489 $185,441
SPY 2x SMA200 13.29% -38.56% 22.04% 0.677 $245,790
SPY 3x B&H 12.65% -96.38% 57.57% 0.497 $212,320
SPY 3x SMA200 18.80% -52.92% 33.07% 0.688 $830,761
QQQ 1x B&H 8.68% -80.45% 25.59% 0.453 $84,631
QQQ 1x SMA200 9.23% -32.21% 14.89% 0.668 $96,332
QQQ 2x B&H 9.62% -97.85% 51.18% 0.435 $105,444
QQQ 2x SMA200 15.97% -54.91% 29.79% 0.648 $447,825
QQQ 3x B&H 4.39% -99.91% 76.77% 0.441 $30,083
QQQ 3x SMA200 21.16% -70.58% 44.68% 0.656 $1,377,225
^SOX 1x B&H 9.44% -85.14% 36.27% 0.429 $101,117
^SOX 1x SMA200 8.48% -46.04% 21.56% 0.486 $80,808
^SOX 2x B&H 4.10% -99.60% 72.54% 0.417 $28,033
^SOX 2x SMA200 11.73% -75.56% 43.12% 0.474 $172,011
^SOX 3x B&H -12.54% -100.00% 108.81% 0.421 $321
^SOX 3x SMA200 10.35% -92.00% 64.68% 0.479 $125,266
GOLD 1x B&H 11.62% -44.36% 17.79% 0.707 $166,878
GOLD 1x SMA200 8.00% -39.36% 14.96% 0.589 $71,657
GOLD 2x B&H 19.58% -74.39% 35.58% 0.682 $972,754
GOLD 2x SMA200 13.37% -65.30% 29.92% 0.570 $248,617
GOLD 3x B&H 25.13% -89.51% 53.37% 0.690 $3,113,159
GOLD 3x SMA200 17.04% -80.94% 44.88% 0.579 $561,952
SILV 1x B&H 11.38% -75.85% 33.00% 0.494 $158,073
SILV 1x SMA200 5.69% -70.57% 26.68% 0.344 $41,263
SILV 2x B&H 9.34% -97.54% 66.00% 0.481 $98,410
SILV 2x SMA200 2.78% -94.12% 53.37% 0.336 $20,192
SILV 3x B&H -7.86% -99.88% 98.99% 0.485 $1,229
SILV 3x SMA200 -11.07% -99.50% 80.05% 0.340 $495

Interpretation

Finding 1: The leverage break-point depends on underlying volatility

Underlying 1x vol Where does B&H leverage start to hurt?
GOLD 17.8% Never in this window. 3x B&H wins.
SPY 19.2% Marginal at 3x (slight degradation vs 2x)
QQQ 25.6% At 3x, B&H goes negative (vol decay > underlying return)
SILV 33.0% At 2x, B&H underperforms 1x. At 3x, near-wipeout.
^SOX 36.3% At 2x, B&H halves the 1x return. At 3x, total wipeout.

Rule of thumb: B&H of a 3x daily-rebalance ETF is structurally negative-EV when the underlying's annualized vol exceeds roughly 25-30%. Below that, leverage compounds. Above that, vol decay compounds against you.

This is purely mathematical (vol decay scales with vol squared) and does not depend on regime. It's why SOXL is structurally a bad B&H choice over 25+ year windows, regardless of how hard the semiconductor sector runs.

Finding 2: SMA200 filter helps equities, HURTS metals

Underlying 1x B&H Sharpe 1x SMA200 Sharpe Filter effect
SPY 0.513 0.704 +0.191 (helps)
QQQ 0.453 0.668 +0.215 (helps)
^SOX 0.429 0.486 +0.057 (helps marginally)
GOLD 0.707 0.589 −0.118 (HURTS)
SILV 0.494 0.344 −0.150 (HURTS dramatically)

The filter helps on equity underlyings (predictable bear cycles to avoid) and hurts on metals (choppy ranging periods generate too many false exit signals).

Practical implication: the canonical SMA200 trend-following framing should be applied to equity-backed positions, not gold/silver. Holding gold below its SMA200 historically still worked because gold's bull/bear cycles are slower and the filter generates costly whipsaw.

Finding 3: Where leverage + SMA200 produces the money

Top 5 $10k → final value over 25.7 years:

  1. GOLD 3x B&H: $3,113,159 (25.1% CAGR, but -89.5% MDD)
  2. QQQ 3x SMA200: $1,377,225 (21.2% CAGR, -70.6% MDD)
  3. GOLD 2x B&H: $972,754
  4. SPY 3x SMA200: $830,761
  5. GOLD 3x SMA200: $561,952

The headline result is uncomfortable: unfiltered 3x gold dominates the dataset. The 25-year window includes both major gold bull markets (2001-2011 and 2019-present) and the filter underperforms by generating false exits.

But — that -89.5% max drawdown on 3x gold B&H means in practice almost nobody would have actually held through it. The "real return" most humans would have captured is much lower because they'd have sold at the bottom.

Finding 4: SMA200 + 2x is the sweet spot for ^SOX

Best ^SOX strategy by absolute dollars: SMA200 + 2x ($172,011) beats SMA200 + 3x ($125,266) and B&H 1x ($101,117).

For semiconductors specifically, 2x with the filter is structurally superior to 3x with the filter over long windows. The extra leverage from 2x → 3x is eaten by vol decay even with the filter on. If you want leveraged semi exposure with a trend filter, USD (2x) > SOXL (3x).

Finding 5: Silver is a bad leveraged play at any level

Strategy $10k →
SILV 1x B&H $158,073
SILV 2x B&H $98,410
SILV 2x SMA200 $20,192
SILV 3x B&H $1,229
SILV 3x SMA200 $495

Every leveraged silver variant loses to 1x B&H. And the SMA200 filter actively destroys returns at every leverage level on silver. Silver's combination of high vol (33% at 1x), choppy non-trending behavior, and false-signal-prone price action make it the worst possible asset for trend-following leveraged ETF strategies.

Direct implications for a sample heavy-leveraged portfolio

The portfolio holds 25% in heavily-traded semis (20% USD + 5% SOXL) and 15% AGQ + UGL + SLVP combined. The findings:

Holding Verdict
UGL (2x gold) at 10% Strong pick. Gold 2x B&H is 19.6% CAGR with Sharpe 0.68. The portfolio's best asset.
TQQQ (3x QQQ) at 15% Strong if held with discipline. With SMA200: 21.2% CAGR. Without (the portfolio's B&H stance): 4.4% CAGR over 25 years.
USD (2x semis) at 20% Questionable. B&H of 2x ^SOX returned only 4.1% CAGR over 25 years. Without trend filtering, semi 2x exposure is mediocre.
SOXL (3x semis) at 5% Bad over long windows. B&H 3x ^SOX synthetic ended at $321 from $10k. Even small allocations are structurally negative-EV.
AGQ (2x silver) at 10% Bad over long windows. Silver 2x B&H returned 9.3% CAGR over 25 years, less than 1x silver. Worst risk/reward in the portfolio.
UPRO (3x SPY) at 5%, QLD (2x QQQ) at 5%, SLVP (silver miners) at 5%, ZROZ (long bonds) at 25% UPRO and QLD: reasonable. SLVP: questionable (silver-linked). ZROZ: see separate defensive bucket study — actively bad.

This is one of the most uncomfortable findings on the entire research sheet. A meaningful chunk of the portfolio's holdings (USD, SOXL, AGQ, ZROZ ≈ 60% combined) are structurally weak positions over multi-decade windows. The 2012-2026 bull window flattered them; the 25-year stress test (Sharpe drops from 0.91 to 0.59) reflects this.

This is not a recommendation to change the portfolio. It's framework information. a sample heavy-leveraged portfolio has been deliberately diversified across leveraged assets — the metals and bonds are intended as insurance against the equity sleeve, not as standalone winners. Whether the insurance is worth the cost depends on the regime ahead.

Caveats

  1. Synthetic LETFs ignore real borrow cost. Pre-2009 LETFs paid borrow rates of 4-15% on the leveraged portion. The synthetic numbers understate real costs. The directional conclusions hold; absolute numbers are upper bounds.

  2. The 25-year window includes 2 commodity bull markets. Gold and silver had massive runs 2001-2011 and gold had another from 2019. A window without these (e.g., 1980s commodity bear) would show metals B&H as much worse.

  3. ^SOX is the unleveraged semi index, not SOXX (the actual ETF). Tracking error in real LETFs would shave another fraction of a percent.

  4. The 3x daily-rebalance assumption. Real LETFs reset at market close; our synthetic assumes the same. Intraday tracking error and rebalance slippage in real LETFs is small but non-zero.

  5. No tax modeling. All figures pre-tax. SMA200 strategies generate 2-3 round-trip trades per year of short-term capital gains. After-tax results in taxable accounts would shift further toward B&H variants.

Source

Saved log: /tmp/leverage_spectrum.log.

Inline runner:

import pandas as pd, numpy as np
import sys; sys.path.insert(0, '/Volumes/Mac External/Claudes/trader/src')
from trader.data.yfinance_src import fetch_daily

TD = 252; COST = 1.0/10000.0
ER = {1: 0.0, 2: 0.0091, 3: 0.0091}

underlyings = {
    "SPY": fetch_daily("SPY", start="1999-01-01")["close"],
    "QQQ": fetch_daily("QQQ", start="1999-01-01")["close"],
    "^SOX": fetch_daily("^SOX", start="1999-01-01")["close"],
    "GOLD": fetch_daily("GC=F", start="2000-08-30")["close"],
    "SILV": fetch_daily("SI=F", start="2000-08-30")["close"],
}
start = max(u.index[0] for u in underlyings.values())
end = min(u.index[-1] for u in underlyings.values())

def synthesize(u, lev):
    return (1 + lev*u.pct_change().fillna(0) - ER[lev]/TD).cumprod()

# For each underlying × leverage × {B&H, SMA200}: synthesize, run strategy, compute metrics

This is research output, not investment advice. Backtest results do not predict future returns. Specific portfolio compositions discussed here are illustrative test cases, not allocation recommendations. Do your own research and consult a licensed advisor for personalized advice. Full disclaimer →