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— Warren Buffett

A long-term holding period can radically change how stock returns are evaluated. Rather than focusing on short-term price swings, a 20-year view highlights the compounding effect of business performance, valuation changes, and time. In the case of Gartner Inc (NYSE: IT), a $10,000 investment made in 2006 and held through today would have grown into a six-figure position.

That result is especially notable because Gartner is not a dividend-driven compounder in this example. The return was generated almost entirely through share price appreciation, underscoring how durable earnings growth and a strong competitive position can create substantial long-term shareholder value even without cash distributions.

Gartner 20-Year Return Summary

The table below shows what happened to a $10,000 investment in Gartner stock over the period beginning October 23, 2006 and ending October 20, 2026.

IT 20-Year Return Details
Start date:	10/23/2006	$10,000 10/23/2006   $115,512 10/20/2026
End date:	10/20/2026
Start price/share:	$19.01
End price/share:	$219.64
Starting shares:	526.04
Ending shares:	526.04
Dividends reinvested/share:	$0.00
Total return:	1,055.39%
Average annual return:	13.01%
Starting investment:	$10,000.00
Ending investment:	$115,512.38

What Drove the Return?

Based on the figures above, the investment compounded at 13.01% annually over the period, turning $10,000 into $115,512.38 as of 10/20/2026. Because Gartner did not contribute dividend income to the result shown here, the gain came from capital appreciation alone.

That distinction matters. When a stock delivers more than a 10-fold return without dividend reinvestment, the main drivers are typically sustained growth in the underlying business, margin expansion, disciplined capital allocation, and investor willingness to assign a higher valuation multiple over time. A return profile like this usually reflects more than a favorable entry point; it reflects a business that compounded its economic value over many years.

Key Takeaways From This 20-Year Investment

For investors evaluating long-duration equity returns, this example highlights several core points:

• Time can outweigh volatility. A 20-year holding period can absorb multiple market cycles, including recessions, rate shocks, and sentiment reversals.
• Compounding does not require dividends. While dividend reinvestment can be powerful, strong total returns can also come from price appreciation when the business compounds internally.
• Annualized returns matter more than headline gains. A 1,055.39% total return is striking, but the 13.01% average annual return is the more useful figure for comparing opportunities across time and asset classes.
• Business quality is central. Over extended periods, stock performance tends to track the growth and resilience of the underlying company more than short-term market narratives.

A Simple Answer: What Is $10,000 Invested in Gartner in 2006 Worth Today?

$10,000 invested in Gartner Inc (NYSE: IT) on 10/23/2006 would be worth $115,512.38 on 10/20/2026, based on the return data shown above.

That equates to a total return of 1,055.39% and an average annual return of 13.01% over the holding period. [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Viewed through a long-term lens, Gartner’s stock performance illustrates the scale of wealth creation that can result when a company compounds value consistently over decades.

Here’s one more investment quote before you go:
“The best stock to buy is the one you already own.” — Peter Lynch