← Finance / MARKY MOO MOO

Methodology
& receipts.

How the strategy was built and stress-tested — including the parts that didn't work and the numbers that are inflated. Receipts are the rings. No opinions presented as answers.

The strategy

Marky Moo Moo is a daily, long-only altcoin trend strategy with a macro gate:

Entry: Supertrend (ATR 7, factor 2) flips up on the coin.
Gate: only take it when Bitcoin is above its 125-day EMA (market risk-on). Below it → stand down, hold cash.
Sizing: ≤2× leverage. The edge is low drawdown, which is what makes leverage survivable.

The whole idea: trend-follow alts, but only while the tide (BTC) is coming in. When BTC rolls over, step aside — that's where the losses live.

How it was tested

A single backtest is easy to fool yourself with. So it was run five ways, each harder to fake:

Multi-asset — one fixed setting across 10 coins, no per-coin tuning.
Out-of-sample — settings chosen on 2020–2023, tested on 2023–2026 (data they never saw).
Rolling walk-forward — chopped into 6-month & quarterly windows to check it helps in most, not one lucky stretch.
Cross-market stress test — run on stocks back to 2000 (a market it was never built for) across the dot-com bust, 2008, 2020, 2022.
Gate sweep — tested EMA lengths 100/113/125/137/150/175; 125 won out-of-sample.

And things that were tested and rejected: short-selling (lost money every period → dropped), other entry triggers (EMA-cross, Donchian, RSI → Supertrend beat them OOS), and high leverage (3× = unholdable drawdown).

The results (the trustworthy ones)

Out-of-sample basket (2023–2026, unseen):

Gate	Return	Max DD	Calmar
125 EMA	+168%	−37%	4.6
150 EMA (old)	+147%	−39%	3.8

Cross-market drawdown protection — gate cut drawdown in 7 of 9 bear markets across crypto AND equities (2000–2026), including the 2008 GFC (−8% vs −25% ungated).

125 vs 150, window by window (6-month): 125 matched-or-beat 150 on return in 8/10 and drawdown in 8/10 windows (18/20 & 17/20 quarterly). Full period: 125 = +1,166% / −37% DD vs 150 = +1,011% / −39%.

Where the gate earns its keep (rolling, risk-off windows):

Window	No gate	Gated 125
2022 H1	−29% / −29%	−1% / −10%
2022 H2	−15% / −24%	0% / 0%
2025 H1	−32% / −34%	−24% / −26%
2026 H1	−18% / −23%	0% / −7%

In bull windows it costs a little upside — that's the insurance premium.

The honest footnotes

⚠ The big absolute returns (e.g. +1,166%) are inflated by full-exposure compounding over a 6-year window. They are NOT what you'd pocket. The trustworthy parts are the out-of-sample comparison, the drawdowns, and the consistency — not the headline %.

It's a high-drawdown strategy — −37% at 1×; per-coin drawdowns ran −37% to −68%.
It's not magic — of 9 coins tested, one (LTC) lost money (−39%). Reported, not hidden.
Realistic win rate is ~35–45% with a ~2–3:1 payoff — a low-win, fat-winner trend profile. You're wrong more than half the time and still come out ahead.
One historical era. Strong evidence, not proof. Trend strategies can underperform for years.
The real test is live. A paper account + a daily monitor are forward-testing it now — the audition is over; this is the job.

Backtests flatter. The honest numbers are uglier than the headline — and those are the only ones worth trading.