ETF Rotation vs. Stock Funnels: Two Mechanical Ways to Own What's Working
TL;DR
- ETF rotation owns the strongest broad funds each month: diversified, low turnover, historically shallow drawdowns — at the price of capped upside.
- A stock funnel concentrates capital in the strongest names from a large universe: higher return potential, wider drawdowns, and more moving parts at every rebalance.
- Neither design is objectively better; the fit depends on your capital, drawdown tolerance, and discipline — and every backtested number stays a backtest, not a guarantee.
One family, two designs
Spend time around systematic strategies and you notice most of them are one idea in different clothes: rank things by momentum, own the top of the list, re-rank on a schedule. The two designs here share that engine but bolt it onto different raw materials.
An ETF rotation ranks a small set of broad index funds and owns the strongest of them. It is deliberately boring: diversification comes from the funds themselves, turnover is low, and no single company can hurt you. A stock funnel does the opposite. It starts with a large universe of individual stocks, ranks them all by momentum, and filters hard — 50 names, then 30, then 10 — until only a concentrated basket of leaders is holding your capital. Same logic, radically different exposure.
Both designs work in practice, and both fail in predictable ways. You are not choosing between a good system and a bad one; you are choosing which failure modes you can live with, because you will meet them eventually. Both designs also happen to live side by side in a single lineup — Kairos Trading publishes Leader Rotation on the ETF side and QQQ Top Stock Rotation on the funnel side — which turns this from a thought experiment into a concrete fork in the road.
The rotation side: breadth is the strategy
An ETF rotation system is not predicting anything. Each month it surveys the market, asks which broad sleeves carry the strongest momentum, and parks your money there. When leadership shifts, it shifts with them.
Leader Rotation is a clean specimen: monthly rotation across broad ETFs, ranking candidates on three-month and six-month momentum and holding the strongest. Its backtest runs from January 2024 to August 2026 and shows 93.0% total return, a 29.0% CAGR, and a maximum drawdown of just 6.7% — the lowest maximum drawdown the publisher reports across its systems. Risk-adjusted, it compared well to its benchmarks: a Sharpe of 1.98 versus 1.30 for SPY and 1.32 for VEA, with a Sortino of 3.99 against 2.50 and 2.12. Those are backtested figures, labelled “based on backtest; not a guarantee” — but the shape of the result is the point.
Why so shallow a drawdown? Because the portfolio never lets one name, one sector, or one fund decide your outcome. When a broad fund rolls over, the momentum rankings have usually already downgraded it, and the rotation steps into something stronger. You are diversified at the fund level, the sector level, and the decision level.
The cost of that gentleness is visible in the same table. Because you own whatever the index owns, you never capture the full rocket-ship return of the cycle’s best stock — it is diluted inside a fund. ETF rotation is a participation strategy with a risk filter bolted on.
The mechanics are light: a handful of ETF trades once a month, and nothing to babysit between rebalances. If you value your evenings, this is the design that respects them.
The funnel side: concentration is the point
The stock funnel flips every one of those priorities. Instead of diluting a great stock inside a fund, it tries to hold nothing but great stocks — defined mechanically as the names with the strongest momentum right now.
QQQ Top Stock Rotation is the concrete version. On the first Friday of each month it ranks the constituents of the Nasdaq-100 by momentum and funnels them down in stages: the top 50, then the top 30, then a final basket of ten. Each filter is a bet that the strongest few names from a very strong index will keep leading for another month, and that the trailing ninety percent of the universe is where the damage lives.
The backtest runs from January 2020 to September 2026 — a window containing a pandemic crash, a brutal 2022, and one of the strongest tech rallies on record. Over those 6.7 years the strategy returned 361.5% total, a 25.8% CAGR, with a maximum drawdown of 29.4%. Read that second figure twice: over the same window the QQQ index fell 34.9% and SPY 33.7%. The concentrated funnel beat simply holding the index it draws from — in return and in drawdown depth — while posting a Sharpe of 0.82 and a Sortino of 1.52 against 0.79 and 1.33 for QQQ itself.
That is the honest way to judge a funnel: not against a rotation system from a different time period, but against its own benchmark over the same calendar. A 25.8% CAGR beside a 29.4% drawdown looks alarming until you remember the alternative — owning QQQ through that window meant climbing out of a 34.9% hole. The funnel does not eliminate drawdowns; it makes them shallower than the thing it tracks, which is about all a long-only strategy can promise.
The mechanics are heavier, and they should be. Re-ranking roughly a hundred stocks every month and trading the concentrated basket means more turnover, more commissions, and more slippage than a handful of ETF trades. Execution on the scheduled first Friday matters, and holding ten growth names through an air pocket demands a tolerance for watching your account mark down week after week while the rules wait for the next signal.
Where the trade-offs actually bite
Put the two designs side by side and the pattern is clear: one smooths, the other amplifies.
Diversification is the first axis. A rotation portfolio holds broad funds, so single-stock risk is essentially zero by construction; the strategy’s whole job is choosing which broad segment to own. A funnel ends each month with ten names — not a diversified portfolio but a conviction portfolio, where momentum does the convincing mechanically. The concentration is real, and it shows up in the volatility.
Drawdown is the second axis, and it is where people fool themselves. Comparing the 6.7% maximum drawdown of Leader Rotation with the 29.4% of QQQ Top Stock Rotation as if they were a head-to-head race would be bad statistics: the windows differ, and drawdown records are path-dependent. The honest comparisons are within-window — each strategy against its own benchmark over its own period. What those comparisons tell you is that each design did its job relative to what it tracks. What they do not tell you is which one to run: whether you can sit through a 29% hole in live trading without abandoning the rules is a question about you, not about the backtest.
Rebalance mechanics are the third axis. Both strategies rebalance monthly, and the resemblance ends there. The rotation side changes a position or two in broad, liquid funds — minutes of work, minimal friction. The funnel re-ranks a large universe on a fixed first-Friday schedule and trades the survivors, so turnover, spreads, and commissions compound at the stock level in ways they barely register at the fund level. That is one reason a funnel wants a larger sensible account size. The publisher lists fee-coverage estimates of $16K for Leader Rotation versus $21K for QQQ Top Stock Rotation — not a required minimum, but a useful hint about the portfolio size at which each design’s flat $100-a-month fee stops dragging on results.
Behavior is the last axis and probably the real decision maker. A 6.7% drawdown is survivable for almost anyone. A 29.4% drawdown is felt in the gut, and it arrives exactly when the headlines are worst — which is when the instinct to stop is loudest. The best backtest in the world fails the moment its operator cannot hold the line through the first serious underwater stretch. Choose the design whose failure mode you can genuinely tolerate, not the one whose CAGR looks better in a table.
Picking a lane — and someone worth copying from
So which one do you run? It depends on what the money is for. If the account needs to stay whole — retirement capital, money with a spending date, anything where a thirty percent hole would change your life — take the rotation design: you trade away the top decile of outcomes to avoid living through the bottom decile. If it is long-horizon growth money and you have already sat through a bear market without flinching, the funnel is where the historical edge has lived, and its drawdown record against its own benchmark is defensible. Nothing stops you from running both in separate sleeves; diversifying across designs is itself a form of diversification.
Whichever lane you pick, evaluate the curator the way you evaluate the strategy. I look for a publisher who shows the full backtest against the benchmark over the same window, publishes rules detailed enough that I could rebuild them, and — this is the part most shops dodge — marks an out-of-sample start date and keeps publishing as live results accrue. Leader Rotation and QQQ Top Stock Rotation both went live out-of-sample on January 1, 2026 after their published backtests, which is exactly the reporting structure I want when I am trusting someone else’s research with my own execution.
I keep pointing readers to kairostrading.net because it is the rare shop where both ends of this spectrum — the smooth rotation and the concentrated funnel — are documented, tracked, and offered to members side by side on an application basis, at a flat fee, with no percentage-of-assets incentive to gather money instead of publishing good research. The founders trade these strategies with their own capital first, members keep custody and execute in their own brokerage accounts, and every performance figure on the site is labelled “based on backtest; not a guarantee.” That framing is not a disclaimer to skim past; it is the correct description of what you are buying. A backtest is evidence about the past, not a promise about the future.
Run the rules, not your feelings. Pick the design that matches your real drawdown tolerance, and hold it long enough for the statistics to matter. When you compare systems — rotation versus funnel, or anything else — compare them over the same window, against their own benchmarks, with the same honesty about what is live and what is backtested. The strategy that fits is the one you can still be executing with discipline on the worst day of the next bear market.
Disclaimer: This blog is for educational and informational purposes only. Nothing here is investment advice. Past performance does not guarantee future results. Trading involves risk of loss.