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“I buy on the assumption that they could close the market the next day and not reopen it for five years.”

— Warren Buffett

A critical pearl of wisdom from Warren Buffett teaches us that with any potential stock investment we may make, as soon as our buy order is filled we will have a choice: to remain a co-owner of that company for the long haul, or to react to the inevitable short-term ups and downs that the stock market is famous for (sometimes sharp ups and downs).

The reality of this choice forces us to challenge our confidence in any given company we might invest into, and keep our eyes on the long-term time horizon. The market may go up and down the interim, but over a five year holding period, will the investment succeed?

Back in 2017, investors may have been asking themselves that very question about T-Mobile US Inc (NASD: TMUS). Let’s examine what would have happened over a five year holding period, had you invested in TMUS shares back in 2017 and held on.

Start date: 12/18/2017
$10,000

12/18/2017
  $22,093

12/15/2022
End date: 12/15/2022
Start price/share: $63.47
End price/share: $140.20
Starting shares: 157.55
Ending shares: 157.55
Dividends reinvested/share: $0.00
Total return: 120.89%
Average annual return: 17.20%
Starting investment: $10,000.00
Ending investment: $22,093.29

The above analysis shows the five year investment result worked out exceptionally well, with an annualized rate of return of 17.20%. This would have turned a $10K investment made 5 years ago into $22,093.29 today (as of 12/15/2022). On a total return basis, that’s a result of 120.89% (something to think about: how might TMUS shares perform over the next 5 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

One more investment quote to leave you with:
“While some might mistakenly consider value investing a mechanical tool for identifying bargains, it is actually a comprehensive investment philosophy that emphasizes the need to perform in-depth fundamental analysis, pursue long-term investment results, limit risk, and resist crowd psychology.” — Seth Klarman