“Only buy something that you’d be perfectly happy to hold if the market shut down for 10 years.”
— Warren Buffett
A 10-year holding period can be an effective way to evaluate how a business compounds value through both price appreciation and dividends. For investors reviewing long-term utility sector performance, Sempra (NYSE: SRE) provides a useful case study. Using a decade-long period beginning in October 2016, the stock delivered a positive total return, with reinvested dividends making a meaningful contribution to the ending value.
This review focuses on total return, not just the change in SRE’s share price. That distinction matters. Utilities are often assessed through a combination of earnings stability, regulated asset growth, capital investment, and dividend income. In Sempra’s case, the 10-year result reflects both a higher share price and the accumulation of additional shares through dividend reinvestment.
SRE 10-Year Return Details
| Start date: | 10/12/2016 |
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| End date: | 10/09/2026 | ||||
| Start price/share: | $51.75 | ||||
| End price/share: | $81.34 | ||||
| Starting shares: | 193.24 | ||||
| Ending shares: | 264.70 | ||||
| Dividends reinvested/share: | $21.74 | ||||
| Total return: | 115.30% | ||||
| Average annual return: | 7.97% | ||||
| Starting investment: | $10,000.00 | ||||
| Ending investment: | $21,524.83 | ||||
A $10,000 investment in Sempra on 10/12/2016 would have grown to $21,524.83 by 10/09/2026, assuming dividends were reinvested. That equates to a total return of 115.30% and an average annual return of 7.97%.
Those figures are especially useful because they separate long-term investing from short-term volatility. Over a 10-year period, the return profile was not driven solely by the stock moving from $51.75 to $81.34. It also reflected the incremental compounding effect of reinvesting cash distributions into additional shares, increasing the share count from 193.24 to 264.70.
[These numbers were computed with the Dividend Channel DRIP Returns Calculator.]
What Drove Sempra’s 10-Year Total Return?
SRE’s decade-long return came from two sources:
- Share price appreciation: the stock rose from $51.75 to $81.34.
- Dividend income: investors received $21.74 per share in dividends over the period, with this analysis assuming those dividends were reinvested on the ex-dividend date at the closing price.
This distinction is central when evaluating utility stocks. A business with moderate price appreciation can still produce solid long-term performance if it combines steady dividend payments with disciplined reinvestment. In that sense, total return gives a more complete picture than price return alone.
Dividend Reinvestment and Compounding
Dividend reinvestment changes the economics of a long holding period. Rather than treating distributions as cash income, the DRIP framework converts those payments into more shares. Over time, those additional shares can themselves generate further dividends, creating a compounding effect that becomes more visible across a full market cycle.
In this case, the increase in shares held from 193.24 to 264.70 shows how material that effect can be. For a company such as Sempra, where the dividend has historically been an important part of the equity story, reinvestment can account for a significant portion of long-term wealth creation.
Current Yield and Yield on Cost
Based on the most recent annualized dividend rate of $2.63 per share, SRE has a current yield of approximately 3.23% using the $81.34 ending share price in this analysis.
Yield on cost measures that same current annual dividend against the original purchase price rather than the current market price. Using the 2016 entry price of $51.75 per share, the $2.63 annualized dividend implies a yield on cost of approximately 5.08%.
That figure is different from current yield, and the distinction is important:
- Current yield reflects the dividend relative to today’s share price.
- Yield on cost reflects the dividend relative to the original purchase price.
For long-term holders, yield on cost can be a useful way to gauge how dividend growth has improved the income profile of an older position, even though it should not be used as a substitute for evaluating current valuation.
Why Long-Term Utility Returns Deserve a Total-Return Lens
Sempra operates in an industry where cash flows, capital spending, regulation, and dividend policy often matter as much as near-term market sentiment. That makes total return analysis particularly relevant. Utility and energy infrastructure businesses frequently deliver a substantial share of shareholder returns through distributions, not just multiple expansion or rapid earnings acceleration.
For that reason, a simple before-and-after price comparison can understate the actual experience of ownership. The stronger framework is to evaluate how much capital grew over time after accounting for reinvested dividends, because that more closely reflects the full economic outcome of holding the stock.
One final investment principle remains relevant to any long-duration holding:
“Go for a business that any idiot can run – because sooner or later, any idiot probably is going to run it.” — Peter Lynch
