Pacer Lunt Large Cap Multi-Factor Alternator ETF (PALC)

PALC operates on a deliberately contrarian premise: that no single stock-selection factor outperforms all the time. The fund rotates between two competing strategies quarterly, holding either a value-tilted large-cap portfolio or a momentum-tilted large-cap portfolio depending on which factor’s relative valuation appears more attractive at that moment. When value stocks are cheap versus momentum stocks, the fund holds value. When momentum stocks are relatively cheap, the fund holds momentum. The alternation strategy aims to reduce the volatility that arises from holding a poorly-timed factor bet, while still capturing the returns of whichever factor works in a given quarter.

The factor-rotation thesis

Value investing and momentum investing are conceptually opposite. A value investor buys stocks that are cheap—low price-to-earnings ratios, low price-to-book, trading below intrinsic value. A momentum investor buys stocks that are going up, betting that the direction continues. Value investors expect a reversion to fair value; momentum investors expect the trend to persist.

Over very long histories, both value and momentum have delivered returns in excess of simply holding the broad market, though neither has worked reliably in every period. In the 1990s and early 2000s, momentum was a dominant source of returns; in the 2010s and into 2020, value lagged badly; after 2022, value began outperforming again as interest rates rose. A static allocation to either one exposes an investor to multi-year draught periods where that factor underperforms the broader market.

PALC’s approach is tactical. The fund measures the relative valuation of value stocks versus momentum stocks using a proprietary metric, and rotates quarterly into whichever factor is trading at a discount relative to its historical average. The logic is that a period of strong momentum performance typically means momentum stocks have become expensive relative to value; that relative expensiveness creates an opportunity to swap into value. Conversely, extended periods of value underperformance mean value has become cheaper, inviting a rotation into value.

How the mechanics work

Each quarter, PALC calculates a valuation ratio comparing the two factors. If value stocks are unusually cheap on a relative basis, the fund buys a large-cap value index or actively-managed value strategy. If momentum stocks are unusually cheap, it buys a large-cap momentum index or momentum strategy. The fund is fully invested at all times; it never holds cash. Rotations happen at fixed intervals—quarterly—rather than continuously, which keeps transaction costs manageable.

The universe is restricted to large-cap stocks, typically the largest 500 or 750 companies by market capitalization. This constraint avoids the vastly different risk profiles of mid-cap and small-cap stocks and focuses the factor bet on the most liquid, most widely followed portion of the market.

The promise: capture both factors with less drawdown

The appeal is intuitive. By rotating into the cheaper factor, PALC should avoid the worst drawdowns that either factor experiences in isolation. A pure value investor suffered a 30+ percent underperformance period from 2015 to 2020; a pure momentum investor experienced sharp declines in 2022 and 2008. PALC, by rotating, should theoretically experience less severe drawdowns because it is not holding either factor at peak expensiveness.

The secondary benefit is that the fund captures the full return of whichever factor is working in a given period, whereas a blended value-and-momentum fund would earn a weighted average of both factors and miss the upside of rotation.

The problem: timing is hard

The primary risk is that the rotation signal is wrong. Valuation ratios are not perfect timing mechanisms. A factor can become cheap and stay cheap for years (or become expensive and stay expensive) because the fundamental conditions driving that factor’s underperformance persist. Buying value when it is cheap does not guarantee value will outperform soon; it might take years for reversion to occur, during which momentum continues to lead.

A related issue is mean reversion failure. The metrics PALC uses to identify relative cheapness assume that valuation gaps eventually close. If the world fundamentally shifts—if growth and momentum become permanently dominant sources of returns, or value permanently takes a secondary role—the rotation mechanism fails. The 2010–2020 period, when momentum and growth dramatically outperformed value, tested this assumption hard.

Transaction costs and tax drag also matter. Each quarterly rotation incurs trading costs and potential capital-gains taxes in taxable accounts. Over extended periods when the rotation is frequently wrong or signals change direction quickly, transaction costs can erode net returns. An investor holding the fund in a taxable account faces annual or quarterly taxable distributions as rotations lock in gains and losses.

When PALC works and when it struggles

PALC performed well during periods when the two factors rotated in predictable cycles—years when momentum dominated for a while, then exhausted itself, then value took over. The post-2022 period, when value began a multi-year outperformance, would have been a good environment for a rotation strategy tilted toward value.

PALC struggled during extended factor dominance periods. From 2015 to 2020, value was structurally cheap and stayed cheap; a rotation strategy that kept buying value as it deteriorated in absolute terms suffered severe losses. The early 2020s, after value began recovering, saw rapid factor rotations, meaning PALC rotated multiple times in short windows and incurred costs without capturing large directional moves.

PALC versus a simple value-and-momentum blend

A simpler alternative is a static 50-50 allocation to a large-cap value fund and a large-cap momentum fund. That approach never rotates; it simply captures both factors all the time at a blended level. The case for PALC is that rotation improves on that blend by overweighting the cheaper factor at any given moment. The case against is that rotation introduces timing risk, tax drag, and costs that often outweigh the benefit of tilting toward relatively cheaper factors.

Researching PALC and evaluating the rotation signal

Read PALC’s quarterly reports and prospectus documentation explaining how the relative valuation metric is calculated. Understand whether the fund’s rotation history would have outperformed a static 50-50 value-and-momentum blend; if not, the tactical overlay is not adding value.

Compare PALC’s returns to a passive large-cap index fund and to a static blend of value and momentum funds. Track the fund’s quarterly rotations and note when the rotation signal changed. Watch whether the fund rotated at turning points or chased factors after significant moves had already occurred.

Monitor the relative performance of value and momentum factors in recent years to gauge whether the factor cycle is shifting toward or away from PALC’s current allocation. Finally, consider the tax and cost implications; in a taxable account, a simpler strategy might be better despite PALC’s theoretical appeal.