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— Warren Buffett

A long-term investment in Duke Energy Corp (NYSE: DUK) illustrates how total return in a regulated utility stock is driven not only by share-price appreciation, but also by the compounding effect of reinvested dividends. Based on the figures below, a $10,000 investment made in November 2016 and held through November 2026 would have grown to $24,776.11 with dividends reinvested.

That outcome highlights a core feature of utility investing: while these businesses are often viewed as relatively defensive and income-oriented, reinvested cash distributions can materially increase ending value over multi-year holding periods. In Duke Energy’s case, the combination of capital appreciation, regular dividend payments, and dividend reinvestment produced a 147.67% total return over the period.

DUK 10-Year Return Details

DUK 10-Year Return Details
Start date:	11/09/2016	$10,000 11/09/2016   $24,776 11/06/2026
End date:	11/06/2026
Start price/share:	$77.34
End price/share:	$127.78
Starting shares:	129.30
Ending shares:	193.83
Dividends reinvested/share:	$39.06
Total return:	147.67%
Average annual return:	9.50%
Starting investment:	$10,000.00
Ending investment:	$24,776.11

What Drove Duke Energy’s Total Return

The result was not driven by price appreciation alone. Duke Energy’s share price rose from $77.34 to $127.78 over the holding period, but the total-return calculation also assumes that cash dividends were reinvested into additional shares. That matters because the share count increased from 129.30 to 193.83, meaning a meaningful portion of the ending value came from compounding rather than from the stock price alone.

On this basis, the original $10,000 investment grew to $24,776.11 as of 11/06/2026, equivalent to an annualized return of 9.50%. [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Why Dividend Reinvestment Matters

Over the 10-year period, Duke Energy paid $39.06 per share in dividends, with those payments assumed to be reinvested on each ex-dividend date using the closing price. For income-oriented equities, especially utilities, this reinvestment effect can materially change long-run outcomes because each dividend purchase creates a larger base of shares that can generate future dividends.

In practical terms, dividend reinvestment improves long-term compounding in three ways:

• It increases share count over time.
• It allows future dividends to be paid on a larger ownership base.
• It can reduce the dependence of total return on multiple expansion or rapid earnings growth.

Current Yield and Yield on Cost

Using the most recent annualized dividend rate of $4.34 per share, DUK has a current yield of approximately 3.40% based on the stated share price. A separate way to view the income profile is yield on cost, which compares the current annual dividend to the original purchase price rather than the current market price.

For an investor who bought at $77.34 per share in 2016, the current $4.34 annualized dividend equates to a yield on cost of about 5.61%. That figure is useful because it shows how dividend growth can increase the income generated by an original investment even when the market yield available to new buyers is lower.

A Concise Takeaway

For this 10-year period, Duke Energy delivered a solid total return profile consistent with what many investors seek from utility stocks: moderate capital appreciation, regular cash income, and meaningful compounding from dividend reinvestment. The main lesson is straightforward: in dividend-paying equities, the long-term result can look materially stronger when returns are measured on a total-return basis rather than by share price alone.

“Know what you own and why you own it.” — Peter Lynch