What if you invested in Comcast in 2015?
CMCSA · Consumer · Data through 2026-06-01
If you invested $1,000 in Comcast in 2015
The same $1,000 in the S&P 500 would be worth $4,521(+352.1%)
The S&P 500 returned $4,521 on the same $1,000. S&P 500 outperformed by $3,221.
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What if Comcast keeps this up?
Project forward at Comcast's 2.3% historical growth rate. See 5-30 year scenarios.
Growth of $1,000
Comcast vs. S&P 500 vs. US Dollar, 2015 to present
Year-by-Year Returns
$1,000 invested in Comcast starting January 2015
| Year | Price | Value | Annual |
|---|---|---|---|
| 2015 | $18.89 | $1,000 | - |
| 2016 | $20.13 | $1,066 | +6.6% |
| 2017 | $27.84 | $1,474 | +38.3% |
| 2018 | $31.79 | $1,683 | +14.2% |
| 2019 | $28.07 | $1,486 | -11.7% |
| 2020 | $33.64 | $1,781 | +19.9% |
| 2021 | $39.48 | $2,090 | +17.3% |
| 2022 | $40.53 | $2,146 | +2.7% |
| 2023 | $32.75 | $1,734 | -19.2% |
| 2024 | $39.87 | $2,111 | +21.7% |
| 2025 | $29.70 | $1,573 | -25.5% |
| 2026 | $29.07 | $1,539 | -2.1% |
What this return means
$1,000 placed in Comcast (CMCSA) in 2015 is worth $1,300 now. The total return is +30.0% over 11.6 years, as of 2026-06-01.
That is only about 2.3% a year once you compound it across 11.6 years. A plain S&P 500 fund would have grown that $1,000 to about $4,521 instead, beating Comcast by around $3,221. The index compounded at about 13.9% a year, a reminder that a single stock can lag a basket of them.
The year-by-year record shows how bumpy the ride was. The best single year was 2017 at +38.3%, and the worst was 2025 at -25.5%. At its lowest point the position was down about 28% from an earlier high. These figures use split-adjusted closing prices and exclude dividends, taxes, trading fees, and inflation, so a real after-tax result would differ.
None of this is a recommendation. It is a record of what already happened, and past performance does not guarantee future results.
What if you invested $100 a month instead?
Most people do not drop a lump sum in on day one. They add a fixed amount every month. Putting $100 into Comcast at the close of every month from January 2015 through June 2026 means 138 buys and $13,800 contributed over about 11.5 years.
$100/month, dollar-cost averaged
$11,416
-17.3% on $13,800 in
Same $13,800, all in at the start
$17,935
+30.0% on $13,800 in
Going all in at the start beat spreading the buys out by $6,519. That is the usual result when a stock trends up: each monthly buy pays a higher price than the last, so the average cost climbs. Averaging in also meant an average buy price of $29.68 per share across the whole stretch, so the monthly buyer never had to time a single low. Neither number counts dividends, taxes, or trading costs.
Illustrative fixed $100/month example, not a recommendation. Figures are computed from CMCSA split-adjusted monthly closes through June 2026. Past performance does not guarantee future results.
Comcast at different times
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For informational and educational purposes only. Not financial advice. Past performance does not guarantee future results. All calculations are based on split-adjusted closing prices from Yahoo Finance and do not account for dividends, taxes, or trading fees. See our methodology and full disclaimer.