$100 a week in VOO for 20 years: what it could grow to
You would put in $104,000. At an assumed 7% a year it grows to about $220,697, but that rate is an assumption. VOO's real record is shorter: $100 a week since Sep 6, 2010 (842 weeks) put in $84,200 and was worth $306,898 at the close of the week of Oct 19, 2026.
Change the amount, years or return
The math, shown
Weeks: n = 52 x 20 = 1,040. Put in: 1,040 x $100 = $104,000. Weekly rate at 7% a year: r = 1.07^(1/52) - 1 = 0.1302% a week. Value = $100 x ((1 + r)^1040 - 1) / r x (1 + r) = $220,697. Each buy is made at the start of its week.
| Assumed return per year | Put in | Value after 20 years | Growth |
|---|---|---|---|
| 4% | $104,000 | $157,982 | $53,982 |
| 6% | $104,000 | $197,078 | $93,078 |
| 7% | $104,000 | $220,697 | $116,697 |
| 8% | $104,000 | $247,542 | $143,542 |
| 10% | $104,000 | $312,771 | $208,771 |
These are assumptions, not a forecast. Change them in the calculator above.
What VOO has actually done
VOO started trading in September 2010, so there are about 16.2 years of weekly closes, not 20. Using adjusted weekly closes (dividends reinvested, no fees):
Source: Yahoo Finance weekly bars, VOO adjusted close, last week in the file is the week of Oct 19, 2026. Past results do not predict future ones. Try your own start date in the VOO and Bitcoin DCA calculator.
The hard part is not the math
The formula assumes you never skip a week for 20 years. That is the part worth tracking. My Bitcoin streak is 64 weeks. See the count on the DCA streak tracker page, or make a streak card.
VOO is 13 weeks at $300 every Tuesday, worth $2,706.03 as of Oct 27, 2026.
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FAQ
How much is $100 a week in VOO after 20 years?
You put in $104,000 (1,040 weeks). The value depends on returns nobody knows in advance. At an assumed 7% a year it is about $220,697; at 4% about $157,982; at 10% about $312,771.
What has $100 a week in VOO actually done?
VOO has about 16.2 years of weekly data, not 20. $100 every week from the week of Sep 6, 2010 to the week of Oct 19, 2026 put in $84,200 and was worth $306,898 at the close of the week of Oct 19, 2026, with dividends reinvested and no fees.
What formula is used?
Each $100 is invested at the start of the week. Weekly rate r = (1 + annual return)^(1/52) - 1. Value = 100 x ((1 + r)^n - 1) / r x (1 + r), with n = 52 x years.
Are the returns before or after inflation?
Whatever you type. Use a lower number, for example 4% to 5%, if you want an answer in today's dollars.