Wenli Bill Hao
Director, Factors and Dividends Indices, Product Management and Development, S&P Dow Jones Indices
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Director, Factors and Dividends Indices, Product Management and Development, S&P Dow Jones Indices
Wenli Bill Hao is Director, Factors and Dividends Indices, Product Management and Development, at S&P Dow Jones Indices (S&P DJI). In his role, he focuses on alternate beta strategies, including factor-based indices as well as dividend, quantitative, thematic and dynamic-allocation strategies. Bill works closely with Sales, Marketing, Global Research & Design and IMPG departments to bring new ideas to market.
Prior to his current role, he worked for five years in Global Research & Design at S&P DJI and was responsible for the conceptualization, research and design of global strategies. He specialized in factor, alternative beta and thematic equity indices.
Prior to joining S&P DJI in 2017, Bill had 10 years of experience in quantitative equity research and investment and 17 years of experience in quant analytics. Bill was a senior portfolio manager at Winsight Global Asset Management. Before that, he held senior investment manager and quant analyst positions in investment and research at ING Investment Management, Asia Pacific region. Bill also worked as a quantitative analyst at Panagora Asset Management and lead research analyst at Liberty Mutual Insurance Group.
Bill holds a bachelor’s degree in engineering from Northeastern University of China, a master’s degree in biostatistics from the University of Minnesota, and an MBA in finance from Cornell University.
Market-cap-weighted indices like the S&P 500® that offer a broad measure of the market have long served as the foundation of passive investing. With valuations at elevated levels and sector concentration—particularly in technology—near historic highs, we examine alternative weighting methods that may provide broader and complementary views. Revenue weighting offers a complementary approach: by weighting…

Single-factor indices have historically outperformed over the long term, but their performance tends to be cyclical, varying with macroeconomic conditions. This has driven demand for multi-factor indices, which combine factors such as quality, value and momentum to leverage their low correlations. By diversifying across multiple factors, these indices seek to enhance long-term risk-adjusted performance and…

Momentum strategies, which tend to be known for performing well in trending markets, experienced a historically strong rebound in April. The S&P 500® Momentum Index, S&P MidCap 400® Momentum Index and S&P SmallCap 600® Momentum Index all posted double-digit gains, surpassing their respective benchmarks (see Exhibit 1). Notably, the April performance of the S&P 500…

As market volatility continues in the U.S., the Dow Jones U.S. Dividend 100 Index and Dow Jones International Dividend 100 Index have emerged as standout performers. Year-to-date (YTD) as of Feb. 28, 2026, both indices have posted double-digit gains (see Exhibit 1). Notably, the Dow Jones U.S. Dividend 100 Index has outperformed its benchmark universe by 14.81%…

The S&P High Yield Dividend Aristocrats® (S&P HYDA) includes large-, mid- and small-cap U.S. companies that have consistently raised their dividends for at least 20 consecutive years. This blog will examine the recent rebalance of the S&P HYDA, detailing the changes in its constituents and their distribution by size and sector. Additionally, we will highlight…

Beyond being a familiar adage, “quality over quantity” lies at the heart of quality-based investing. Rather than concentrating on the largest stocks, quality indices systematically tilt toward companies with strong profitability, high earnings quality and robust balance sheets. Over the long term, the S&P 500® Quality Index has delivered impressive absolute and risk-adjusted returns as…

Research and development (R&D) investment is often a key indicator of innovation, competitiveness and a forward-looking mindset—qualities that may drive future revenue streams and market leadership. Comparing R&D Intensity1 across companies can help identify those that are dedicating significant resources to developing new products, technologies or services capable of disrupting industries and generating lasting value….

Over the long term, both the S&P 500® Quality Index and S&P 500 Momentum Index have outperformed the broader market (as measured by the S&P 500) in terms of absolute and risk-adjusted returns. The quality factor emphasizes financially strong and stable companies, while momentum tracks stocks with sustained price trends. When combined, these strategies create…

Utilizing free cash flow (FCF) to evaluate a company’s quality can be a powerful way to identify financially resilient businesses. Unlike earnings, which can be influenced by accounting practices, FCF provides a clearer picture of a company’s ability to generate cash after covering essential expenses and investments. In our paper published this year, we demonstrated…

As the 10-year U.S. Treasury yield hovers above 4.0%, it’s possible that market participants can find yields without assuming excessive risk. However, a significant challenge remains: protecting against inflation and preserving purchasing power. For example, due to inflation, USD 1,000 in December 2005 was equivalent to only USD 606 as of June 2025. In contrast,…