DFAC vs RULE

DFACADimensional US Core Equity 2 ETF

RULEFAdaptive Core ETF

In short

DFAC Dimensional's whole-market workhorse: roughly 2,600 US stocks in one ticker, run by managers who weigh federal tax consequences before they trade, at a fee closer to index funds than to active ones.

RULE RULE is the algorithm with an exit button: a price-trend model ranks a go-anywhere lineup and can shift the whole portfolio to cash when signals break. The ticker is the pitch; 1.84%, with no fee waiver, is the toll.

Stated mandate

DFAC The fund seeks long-term capital appreciation while considering federal income-tax implications in its investment decisions.

RULE The fund seeks long-term growth of capital while also pursuing income.

Why people hold it

• DFAC 0.17% a year for an actively run fund, well under the median fee among active US equity ETFs.
• About 2,600 US stocks under one ticker, so it holds the market broadly rather than a narrow slice of it.
• Federal income-tax implications sit inside the stated objective, not in a footnote, so they factor into what managers buy and sell.
• A multi-billion-dollar fund with a track record running back to 2007 and one of the strongest implementations in its peer group.

• RULE Its price-trend model scores assets and can move the entire portfolio into cash or money-market ETFs when signals turn down, a sell discipline most all-equity peers skip.sec.gov
• Go-anywhere by charter: stocks of any size, plus equity and fixed-income ETFs, so one ticker covers ground that usually takes several.sec.gov
• Concentrated rather than sprawling, at roughly 40 positions, so each pick carries real weight.
• Benchmarks itself to the S&P 500 Total Return Index, a yardstick you already know.

Worth knowing

• DFAC Actively managed, so there's no published index to check it against. Holdings and tilts shift at the managers' discretion.
• Dimensional's own DFAU runs a US core equity mandate for 0.12%, a slightly lighter fee for a similar shelf.
• All stocks, all US: the mandate is capital appreciation from equities, so it takes the market's full swings, and cash arrives quarterly.

• RULE Costs 1.84%, with no fee waiver in place and above the category median; two of the category's standouts run far cheaper, DFAU at 0.12% and AVLC at 0.15%.
• Frequent trading is built into the strategy, which the prospectus flags for higher transaction costs and bigger tax bills in a taxable account.sec.gov
• A small fund that trades lightly, so spreads can run wider than at the category's giants.

Full DFAC profile⁠

Full RULE profile⁠