Invesco Dorsey Wright Developed Markets Momentum ETF (PIZ)

Momentum investing operates on a simple premise: stocks that have been moving up tend to keep moving up, at least for a time. This is not because companies are fundamentally better — though some may be — but because markets move in trends, and those trends persist long enough for investors to profit from riding them. The Invesco Dorsey Wright Developed Markets Momentum ETF (ticker PIZ) applies this logic to the largest, most-developed equity markets outside the United States. Rather than buying all developed-market stocks equally, or favoring only the biggest companies, PIZ systematically selects stocks that show the strongest recent price momentum and weights them accordingly. The fund is neither a value fund seeking cheap stocks nor a growth fund chasing rising earnings — it is purely a momentum play, and that focus is both its appeal and its defining limitation.

Momentum as a measurable signal has been studied extensively in academic finance. Researchers consistently find that stocks with the strongest returns over a given lookback period (typically three to twelve months) tend to outperform the broader market in the months that follow. This is not guaranteed — trends reverse, sometimes sharply — but the pattern is real enough that it has survived decades of academic scrutiny and billions of dollars in quantitative investment money. Dorsey Wright, an investment research firm with roots in technical analysis, has built a systematic methodology for identifying momentum stocks across different geographies and applying that screening to create investable indexes. PIZ uses that methodology applied to developed-market stocks: companies in the US, Europe, Japan, Australia, Canada, and other economically mature countries that meet Dorsey Wright’s momentum criteria.

The distinction between PIZ and its emerging-market cousin (PIE) is substantial. Developed markets are more mature, less volatile on average, and include lower-growth but more profitable companies — blue-chip stocks, pharmaceuticals, industrial machinery, and established financial firms. When those stocks exhibit momentum, it often reflects genuine business improvements or shifts in sentiment among professional investors. Emerging markets, by contrast, are dominated by smaller companies, more speculative traders, and rawer momentum effects that can reverse more violently. PIZ, holding developed-market stocks, tends to show lower volatility than PIE, though the momentum strategy itself adds activity and turnover compared to a static index fund.

What PIZ actually holds depends on the current momentum reading. The fund does not maintain a fixed list of companies; instead, it rebalances regularly (typically monthly) to incorporate new momentum leaders and drop stocks whose recent trends have weakened. This turnover is higher than a traditional index fund, which means transaction costs and — in taxable accounts — tax drag are modest but real headwinds. An investor comparing PIZ to a broad developed-market index fund like VEA should account for that friction. Over long periods, small costs compound.

The fund is currency-aware in one specific way: it tracks the index in US dollars, so an investor is exposed to currency movements between the dollar and the euros, pounds, yen, and other currencies in which foreign holdings trade. If the dollar strengthens, returns are dampened because overseas profits are worth less in dollar terms. If the dollar weakens, returns are boosted. Some momentum effects can themselves be currency-driven — a weak euro, for instance, can boost the euro-denominated share prices of European export companies in dollar terms — so PIZ’s returns sometimes reflect currency momentum as much as stock momentum.

Owning PIZ makes sense for investors who trust momentum as a signal and want to apply it globally (minus the US) with a developed-market emphasis. Tactical traders may use the fund to overweight developed markets when they sense momentum is strong, or to diversify momentum bets across multiple geographies. Dividend-income investors should look elsewhere, as momentum stocks are not selected for yield. Similarly, investors seeking stable, predictable returns through market cycles should be cautious; momentum can amplify losses when trends reverse.

Researching PIZ requires understanding both the fund itself and the momentum philosophy. Start with Invesco’s fact sheet and prospectus, which list the current holdings and the expense ratio. The Dorsey Wright website details how momentum is calculated, which stocks make the cut, and how often rebalancing occurs. Review the fund’s top holdings and think about the sectors and countries they represent — if a particular region is dominating (say, all the momentum is in Japanese electronics), that concentration is worth noting because a sector-specific downturn can hurt returns. Compare PIZ’s historical returns against a plain developed-market index fund like VXUS or VEA to see whether momentum selection has added value or simply added volatility. Currency exposure is another research angle; understanding whether recent returns have benefited from dollar weakness, and what that means for future returns, helps frame the opportunity. Finally, reading about momentum investing more broadly — academic papers, practitioner commentary from quantitative investing firms — gives context for whether this approach aligns with your investment philosophy and time horizon.