Adaptive Core ETF (RULE)

The Adaptive Core ETF takes the philosophy that you do not need a discretionary human judgment call on every stock, but you also do not want to be a slave to a rigid index. Instead, the fund uses a set of explicit, rules-based criteria to select stocks from the U.S. large-cap and mid-cap universe—criteria that tilt toward companies that exhibit certain desired characteristics: profitability (quality), low valuation (value), and price strength (momentum). The rules stay fixed, but the portfolio adapts as new stocks enter and leave the criteria window.

The fund’s approach sits between two poles. On one end, purely passive index funds hold all the stocks in a market-cap-weighted index regardless of valuation, quality, or any other factor. On the other end, discretionary active managers make stock-by-stock bets based on deep analysis and conviction about individual companies. RULE lives in the middle: it applies systematic rules that have historical support—choose profitable, undervalued companies with positive price trends—but does not rely on one manager’s judgment about which specific stock is “the next Microsoft.” The rules are transparent and, in principle, repeatable.

The fund is segmented into several holdings tiers based on market capitalization and financial characteristics. It includes established large-cap blue-chip companies that meet its profitability and value screens, mid-cap names that have broken through into scale but still meet the criteria, and a smaller allocation to higher-conviction positions where the rules signal greatest opportunity. This segmentation ensures the fund is not concentrated in any one market-cap band or sector, while allowing the rules to weight the portfolio toward the stocks that best fit the criteria at any given moment.

The rules typically work like this: a stock must show strong profitability (high return on equity or earnings relative to price), a reasonable valuation (not trading at an extreme premium to historical norms), and positive recent price momentum (suggesting the market has begun to notice the quality and value). Stocks that fail these screens drop out; stocks that newly qualify come in. The portfolio rebalances at fixed intervals—often quarterly—to stay current with which companies meet the rules. This rules-based approach removes individual bias (no manager is lobbying for their favorite pick) but also limits the fund from acting quickly on breaking news or exploiting temporary mispricings.

The benefit of rules-based investing is lower costs and more reproducible results. Because the manager is not making discretionary bets on individual companies, the fund turns over the portfolio less than a pure active fund would, reducing trading costs and the tax drag from capital gains. Because the rules are fixed and known in advance, investors can understand exactly what they are getting and audit whether the fund is following its own mandate. Over long periods, a well-designed rule set beats the average discretionary fund—though it will rarely beat the very best discretionary managers in any given year.

The risk, conversely, is that the rules can go out of style or fail during particular market regimes. The combination of quality, value, and momentum that works well in a rational, reflective market can stumble in speculative markets where excitement about unprofitable growth companies overwhelms the fundamentals. If the factors encoded in the rules underperform for several years—as happened to value investing during the growth-stock dominance of the 2010s—the fund will lag its broader market benchmark, not because the manager failed but because the rules themselves are not working. Investors in RULE during such a period might lose patience and move money to an index fund, which would have tracked the market’s consensus.

RULE’s performance also depends on the quality of the rules themselves. Which profitability metrics matter most? How much valuation discount is necessary? How is momentum defined—one month, one year? The fund’s prospectus lays out these details, and comparing the fund’s actual composition and returns against a passive large-cap index and against other rules-based or active funds shows how well the rules are performing. A fund using identical rules should produce nearly identical results year after year (with minor variations for new listings, delistings, and so on), which is a way to audit whether the manager is actually following the rules or has drifted into discretion.

For investors, RULE’s appeal lies in its transparency and low cost relative to discretionary active management, paired with a rules-based tilt toward factors that have long-term support. It is a reasonable middle ground for someone who wants something better than a market-cap-weighted index but does not want to pay 1 percent annually for a fund manager’s judgment. The catch is that rules-based funds perform best during periods when the underlying factors are working; during reversals, they lag. Understanding the specific rules the fund uses and comparing its multi-year track record against both passive and active peers will tell you whether it deserves a place in your portfolio.