Dividend Yield on Cost
Yield on cost measures the current annual dividend payment as a percentage of the original purchase price. It is the dividend investor's most personal metric, unique to each investor's entry point and holding period. Two investors holding the same stock with identical dividends will have different yields on cost if they purchased at different prices. The metric answers a question that the standard dividend yield cannot: how much income is the investment generating relative to what the investor actually paid for it?
The formula is simple:
Yield on Cost = Current Annual Dividend Per Share / Original Purchase Price Per Share
An investor who bought shares of a company at $50 and now receives $4.00 per year in dividends has a yield on cost of 8.0%, regardless of the stock's current market price. If the stock now trades at $120, the current yield is only 3.3%, but the investor's yield on cost reflects the compounding of dividend growth since the original purchase.
Why Yield on Cost Matters
Measuring Income Progress
Yield on cost is the most tangible measure of a dividend growth strategy's success over time. When an investor purchases a stock yielding 2.5% and watches the yield on cost grow to 5%, then 8%, then 12% over two decades, the progression demonstrates the power of dividend growth compounding in a way that no other metric can capture.
Consider a real-world trajectory. An investor purchased Johnson & Johnson in 2005 at approximately $63 per share. The annual dividend at that time was roughly $1.28 per share, producing a starting yield of 2.0%. By 2025, the annual dividend had grown to approximately $4.96. The yield on cost had risen to 7.9%. The investor is now earning nearly 8% annually on the original investment, paid in growing cash, from a blue-chip company with 62 consecutive years of increases.
This progression is the dividend growth thesis made concrete. The starting yield was modest, unremarkable even. But 20 years of 7% annual dividend growth transformed that modest yield into a powerful income stream, all without selling a single share.
Motivation and Behavioral Anchoring
Yield on cost provides a psychological anchor that helps investors maintain long-term holding discipline. Selling a stock with an 8% yield on cost is emotionally difficult, which is a feature, not a bug. The reluctance to sell a high-YOC position prevents the impulsive trading that destroys most investors' long-term returns.
During the 2020 pandemic crash, an investor with a 6% yield on cost from Procter & Gamble had a powerful reason to hold: the dividend income was still being paid, the yield on cost was still excellent, and selling would sacrifice decades of accumulated dividend growth. The metric reframes a market decline from "I am losing money" to "I am still earning 6% on my original investment, and the quarterly deposits are still arriving."
Tracking Multiple Purchases
For investors who build positions over time through multiple purchases, yield on cost can be calculated on the weighted average cost basis. If 100 shares were purchased at $50 and another 100 at $70, the average cost is $60. A $4.00 annual dividend produces a yield on cost of 6.7%.
This weighted calculation is useful for tracking the overall income efficiency of a position that was built across different price levels. DRIPed shares, which are purchased at varying prices over years of reinvestment, are included in the average cost basis and affect the yield on cost accordingly.
The Mathematics of Yield on Cost Growth
Yield on cost grows at the same rate as the dividend grows, assuming the purchase price is fixed (no additional purchases). This is a mathematical identity:
If the starting yield is Y and the annual dividend growth rate is G, then after N years:
Yield on Cost = Y x (1 + G)^N
Examples with a 2.5% starting yield:
- At 5% annual dividend growth: YOC after 10 years = 4.1%, after 20 years = 6.6%, after 30 years = 10.8%
- At 7% annual dividend growth: YOC after 10 years = 4.9%, after 20 years = 9.7%, after 30 years = 19.0%
- At 10% annual dividend growth: YOC after 10 years = 6.5%, after 20 years = 16.8%, after 30 years = 43.6%
- At 12% annual dividend growth: YOC after 10 years = 7.8%, after 20 years = 24.1%, after 30 years = 74.9%
The numbers at higher growth rates and longer time horizons become extraordinary, which is precisely the point. A 12% dividend growth rate sustained for 30 years turns a 2.5% starting yield into a 75% annual return on the original investment. This level of growth is rare but not unprecedented; Visa, Broadcom, and other high-quality growth companies have sustained double-digit dividend growth for extended periods.
The Limitations of Yield on Cost
Yield on cost is an income metric, not an investment quality metric. It tells the investor how much income the position generates relative to the purchase price. It does not tell the investor whether the position represents the best use of capital going forward. This distinction is the source of nearly all the controversy surrounding the metric.
The Opportunity Cost Blind Spot
An investor with an 8% yield on cost from a company whose stock has tripled is sitting on a significant unrealized capital gain. The current yield on the position's market value might be only 3%. The relevant question for forward-looking capital allocation is: would the investor be better served by selling, paying capital gains tax, and reinvesting in a different stock that yields 5% on the new investment?
Yield on cost cannot answer this question because it is backward-looking. It measures what the investor paid, which is a sunk cost. The current market value and the opportunities available at that market value are what determine whether holding is optimal.
An extreme example illustrates the point. Suppose an investor bought a stock at $10 that now trades at $200 and pays a $4.00 dividend. The yield on cost is 40%. The current yield is 2.0%. If the company's business is deteriorating and the dividend is likely to be cut, the 40% yield on cost is meaningless. The investor should sell based on the deteriorating fundamentals, regardless of the impressive YOC.
It Cannot Be Compared Across Investors
Yield on cost is unique to each investor's purchase price and therefore cannot be used to compare investment opportunities. An investor with a 10% yield on cost from Coca-Cola bought at a different time and price than an investor with a 3% yield on cost from the same stock. Neither figure tells an observer anything about whether Coca-Cola is a good investment today.
It Ignores Total Return
A stock that has appreciated 400% but only grew its dividend at 3% annually may have a modest yield on cost despite extraordinary total return. Conversely, a stock that has declined 50% while maintaining its dividend has a doubled yield on cost despite terrible total return. Yield on cost captures only the income dimension and can mislead investors who use it as a comprehensive performance metric.
Using Yield on Cost Properly
The metric works best in three specific contexts.
Portfolio Income Monitoring
Tracking yield on cost across all positions in a dividend portfolio provides a dashboard view of income accumulation. Positions with rapidly rising YOC are the portfolio's compounding engines. Positions with stagnant YOC are not contributing to income growth and may warrant review.
A simple spreadsheet with each position's original cost, current annual dividend, and calculated YOC, updated annually, reveals the income trajectory of the entire portfolio. Watching the weighted average YOC rise from 3% to 4% to 5% over a decade is tangible evidence that the dividend growth strategy is working.
Long-Term Holding Discipline
YOC reinforces the behavioral discipline of long-term holding. When a position's yield on cost reaches 6% to 8%, the investor has a powerful incentive to continue holding. This behavioral anchoring is beneficial because it counteracts the common tendency to sell winners too early, a bias that academic research has documented extensively.
Comparing Against Fixed-Income Alternatives
Yield on cost provides a useful comparison point against the yields available from bonds and other fixed-income instruments. An investor whose equity portfolio produces a 5% yield on cost is generating income comparable to high-yield bonds, with the added benefit that the equity income stream is growing while the bond coupons are fixed.
This comparison becomes particularly compelling in low-interest-rate environments. During the decade of 2010-2020, when 10-year Treasuries yielded 1.5% to 3.0%, long-held dividend growth portfolios with yields on cost of 4% to 6% provided substantially better income than any available fixed-income alternative, with the additional benefit of inflation-protected growth.
Building Yield on Cost Over Time
The practical application of yield on cost is in building positions with the intention of holding them long enough for the YOC to reach meaningful levels. This requires:
Selecting companies with durable dividend growth. The YOC growth rate equals the dividend growth rate. A company growing its dividend at 8% will double the YOC every 9 years. Selecting companies that can sustain high growth rates for decades is the prerequisite.
Buying at reasonable valuations. The starting yield determines the starting point for the YOC trajectory. Buying a stock at a 2.5% yield rather than a 1.8% yield provides a 39% higher starting point. Over 20 years, this starting advantage compounds, and the difference in YOC becomes substantial.
Holding through volatility. Yield on cost only grows if the investor holds the shares. Selling during a downturn, even to repurchase later, resets the cost basis and often results in a lower YOC than the investor would have achieved by holding.
Reinvesting intelligently. Additional purchases at lower prices improve the average cost basis and increase the YOC. Additional purchases at higher prices dilute it. Selective buying during market corrections, when yields are temporarily elevated and prices are depressed, maximizes the long-term YOC.
A Balanced Perspective
Yield on cost is neither the definitive measure of dividend investing success nor the meaningless vanity metric that its critics claim. It is a personal, backward-looking income measurement that serves a specific purpose: tracking the income return on invested capital over time.
Its value lies in what it reveals about the compounding trajectory of a dividend growth portfolio. Its limitation lies in what it conceals about opportunity cost and total return. Investors who use YOC as one metric among many, alongside current yield, payout ratio, free cash flow coverage, and total return, will find it genuinely useful. Investors who use YOC as their primary or sole metric risk holding deteriorating positions because the historical income return looks impressive while the future income return may be declining.
The metric is the scoreboard for dividend growth investors. Like any scoreboard, it tells the score at a given moment. It does not predict the final outcome. The analysis of the underlying business, the competitive position, the balance sheet, and the growth trajectory determines the outcome. Yield on cost merely records the result.
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