The Portfolio Solutions Group offers their perspective on interest-rate shifts as a driver of both performance and valuation differentials between Growth and Value equity styles.
26.10.2022 | 06:56 Uhr
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In this paper, we offer our perspectives on interest-rate shifts as a driver of both performance and valuation differentials between Growth and Value equity styles, particularly over the last 15 years. We focus on fundamental drivers that specifically interact with interest rates and have significant implications for valuation.
In explaining the link between Growth vs. Value performance and interest rates, market commentary has tended to focus primarily on differences in the distribution of cash flow over time. Growth stocks have projected cash flows weighted further in the future, and thus are more sensitive to changes in discount rates compared to value stocks. We view this dynamic as accurate and important, but likely incomplete on its own.
We believe a company’s competitive dynamics and barriers to entry are other factors influencing a stock’s valuation and sensitivity to changes in interest rates over time. We further posit that Growth indexes are more likely to include companies with higher barriers to entry vs. Value indexes—at least when considering the last 15 years. Taken together, this suggests additional mechanisms may drive Growth’s higher valuation sensitivity to changes in interest rates as compared to Value.
We see three reasons why exploring these Growth vs. Value valuation dynamics may be beneficial for investors:
DISPLAY 1 A long period of Growth outperformance relative to Value
DISPLAY 2 A widening valuation gap between Growth and Value
Preface
To avoid potential confusion, we offer some quick notes on the intended scope of this paper. When approaching the terms Growth and Value, our focus is on commonly used Growth and Value style indexes.
Additionally, it is not our intention to analyze or discuss all the various drivers of Growth vs. Value relative performance. Our focus is on interest rates as a driver of both performance and valuation differentials, and the fundamental drivers that specifically interact with interest rates with implications for valuation.
Deconstructing the Mechanics Linking Rates to Growth vs. Value Performance
In framing the Growth vs. Value trade in terms of interest-rate duration, the most common explanation focuses on how cash flows are distributed over time: Cash flows for growth stocks sit farther in the future, making the discounted value of Growth more sensitive than Value to changes in the discount rate. This explanation focuses specifically on how changes in the discount rate impact valuation for stocks with different growth trajectories. From a fundamentals perspective, however, we think there is another important factor to consider. We believe a company's competitive dynamics play a critical role in affecting the sensitivity of the stock's valuation to interest rates. In our view, layering this on top of the timing of cash-flow distributions provides a more complete explanation for the magnitude of performance and valuation disparities between Growth vs. Value over the last 15 years as interest rates declined.
ESTABLISHING THE LINK BETWEEN COMPETITIVE DYNAMICS AND INTEREST-RATE SENSITIVITY
A company's growth rate can be viewed as a function of the returns it can generate from allocating capital. While many factors play into those returns, over time competitive dynamics should constrain a company's returns relative to its cost of capital. Where excess returns are high and barriers to entry are low, new competitors will be drawn into the market. Over time, that additional competition will erode excess returns until the incentive for new entrants is eliminated. Since interest rates are a core driver of cost of capital, this means that falling interest rates might over time lead to lower returns on company investment, with the degree of sensitivity dictated by competitive dynamics. Company returns should be strongly linked to changes in cost of capital where barriers to entry are low (over a long enough time frame), or weakly linked where barriers to entry are high.
The relevance to Growth vs. Value comes from an assertion that Growth in aggregate tends toward higher barriers to entry than Value, or at least has over the last 15 years—we look to support this assertion more directly later in the paper. If this assertion holds, then companies in Growth indexes may be better able to sustain returns on capital with relative insensitivity to shifts in the cost of capital. Conversely for companies in Value indexes, a falling cost of capital over time might translate to lower returns on invested capital, as competitive dynamics keep returns in check.
If viewing valuation through the lens of discounted cash-flow valuation, the following implications might apply. If interest rates fall and drive relevant cost of capital lower, both Growth and Value would benefit from a lower discount rate. Growth would see significant benefit, both because base-level growth is higher (cash flows weighted further in the future) and growth rates may persist regardless of a lower cost of capital. Value would already see less valuation upside relative to Growth given a lower growth rate (cash flows more weighted toward the present). Moreover, valuation upside might be further reduced by a decline in cash flow growth (or, alternatively, require greater investment for the same level of growth) as competitive dynamics push company returns on capital toward the new, lower cost of capital.
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