Investing $300 a Month: What 10 Years Could Have Done

Here is the simple answer. If you had invested $300 at the end of every month for 10 years, you would have put in $36,000.

By July 24, 2026, that $36,000 would have been worth about:

The Bitcoin number is the largest. It also came with the largest risk. The home number is strong too, but it is not an equal comparison. Buying a home requires a down payment, a loan, taxes, insurance, repairs, and other costs.

Past winners do not tell us what will win next. This table shows what happened during one finished 10-year period. It does not promise what your money will do.

New to terms like SPY, dividends, or reinvesting? The investing terms guide explains each one in plain English.

How these numbers were worked out

The SPY, XLU, and Bitcoin rows use the same basic test:

1. Put in $300 at the end of each month from July 2016 through June 2026.
2. Allow fractional shares. That means every dollar gets invested.
3. Put stock-fund payments back into the fund.
4. Check the value on July 24, 2026.
5. Leave out taxes and trading fees.

The SPY and XLU math uses State Street's daily fund values and payment history.[1][2][3] XLU had a two-for-one share split in December 2025, so the calculation doubles the share count on that date.[4] State Street's own fund pages provide a second check against each fund's published 10-year return.[6][7]

The Bitcoin math uses Coinbase prices published by the Federal Reserve Bank of St. Louis.[5] It came to about $398,000. The public table rounds that to $400,000 because the exact total changes with the purchase time and ending price.

The home row uses Zillow's Home Value Index. It tracks the typical home value in an area. It does not track one exact house.[8]

SPY: about $81,000 from $36,000

People sometimes call it the "SPY 500." The index is the S&P 500. SPY is a fund that follows that index.

Buying one share of SPY gives you a small piece of hundreds of large U.S. companies. That includes companies in technology, health care, banking, energy, and other parts of the economy.

In this 10-year test:

• You put in $36,000.
• The ending value was about $81,000.
• About $45,000 came from market growth and reinvested dividends.

That is a little more than twice the money you put in. It is a strong result. It was not smooth. Stock prices fell along the way, and they can fall again.

Bitcoin: about $400,000 from $36,000

The $400,000 number jumps off the page. It should.

A person who bought $300 of Bitcoin every month in this exact period would have ended with about 6.2 Bitcoin. At the July 24, 2026 price, that was worth about $400,000.

This does not make Bitcoin an easy or safe choice. Its price can move hard and fast. The SEC calls Bitcoin highly speculative and warns that its price can swing widely.[9]

The result also assumes the person:

• kept buying during large price drops;
• never sold from fear;
• kept the Bitcoin or account secure;
• paid no fees or taxes during the test.

Bitcoin was the clear winner in this table. It was also the choice most likely to make a nervous owner quit before the 10 years were over.

Utility stocks: about $63,000 from $36,000

XLU owns shares of utility companies. These are businesses that provide services such as electricity and natural gas.

Utilities can feel safer because people still need power when the economy is weak. But XLU is still a stock fund. Its price can fall. Its dividends can change.

In this test, XLU grew the $36,000 to about $63,000. That was less than SPY, but far more than cash earning no interest.

There is another difference. SPY spreads money across many types of companies. XLU stays in one part of the market. If utility companies have a bad period, the whole fund can feel it.

A Beverly Hills home: about 2.1 times the price

Zillow's data for ZIP 90210 shows a typical home value of about $2.54 million in July 2016. In June 2026, it was about $5.33 million.[8]

That is an increase of about:

• $2.79 million;
• 110%;
• 2.1 times the old value.

It is not three times or ten times the price. The real data does not support those claims for this ZIP and period.

The owner did not keep all of that increase as profit. A real home can come with:

• mortgage interest;
• property taxes;
• insurance;
• repairs;
• buying and selling costs.

A loan can make the gain on the owner's starting cash look much larger. It can also make a loss hurt more. The house gives the owner a place to live, which a stock or Bitcoin does not.

Cardone Capital: pooled real estate

Cardone Capital is one example of pooled real-estate investing. You do not buy a whole building yourself. Many investors put money into a fund. The fund then buys or helps own apartment buildings or other property.

This can give a person access to large properties. It does not make the deal safe or easy to sell.

Can anyone invest? It depends on the exact offering.

Cardone says most of its Rule 506(c) offerings are only for verified accredited investors. Its SEC-filed Regulation A offering is an exception. Eligible U.S. investors who are not accredited may invest, but the offering document sets income or net-worth limits and other rules.[15][17]

Accredited investor is an SEC eligibility label. An individual can qualify in several ways. Common paths include:

• net worth above $1 million, not counting the main home;
• income above $200,000 alone, or $300,000 with a spouse or partner, in each of the last two years, with the same expected this year;
• certain active licenses, including Series 7, 65, or 82.[16]

Being accredited does not mean the SEC approves the investment. It does not mean the investor is an expert. It does not make a loss less painful.

Before sending money, read the exact offering document. Check:

• every fee;
• how much debt the fund uses;
• which properties it owns;
• when money can be withdrawn;
• how the sponsor gets paid;
• what could cause a total loss.

Cardone's own disclosures say its securities are not publicly traded and may be illiquid. They also say projections are not promises and an investor may lose some or all of the investment.[15]

The July 2025 offering circular for Cardone Non Accredited Fund listed a $5,000 minimum, no public market, no current redemption program, and an expected holding period of at least ten years. It also explains related-party management, fees, debt, and conflicts.[17] The fund's April 2026 annual filing still described the Regulation A offering and its issued units.[18] Those dates and terms can change. Read the latest filing before acting.

What $300 a month might become from here

No one knows the next winner. A simple growth table can still help you understand the math.

This table starts at $0. It adds $300 at the end of each month. The 4% and 8% columns pretend the money grows at the same rate every month.

These are math examples, not forecasts. Real investments do not grow in a straight line. You can change the amount, time, and rate in the Investor.gov compound interest calculator.[10]

Some people search for "$300 a month invested for 30 years." This table stops at 20 years on purpose, because assuming one steady rate for 30 years is a stretch. To try 30 years yourself, change the numbers in that calculator.

Before investing, check expensive debt and emergency cash

A large past return can make every other use of $300 look boring. That can hide a more urgent problem.

Suppose a credit card charges 24% interest. Paying down that balance avoids a known cost. A future stock return is unknown. The Consumer Financial Protection Bureau explains that paying a card balance sooner usually cuts the interest charged.[11]

Now suppose a car repair would force you to use that card again. Keeping some cash for emergencies may help more than chasing a higher return. The CFPB notes that even a small surprise bill can become debt when there is no savings cushion.[12]

The date matters too. Money needed for rent next month has a different job from money meant for retirement in 20 years. Investor.gov explains that a shorter timeline usually calls for less price risk.[13]

A simple way to choose

Ask these questions in order:

1. Do I have expensive debt?
2. Do I have cash for a surprise bill?
3. When will I need this money?
4. How much of it could I watch fall without selling?
5. Do I understand what I am buying?

The best past return and the best choice are not always the same thing.

Watch out for products that borrow this chart's shine. An IUL is often sold as a way to get market-like growth, but a cap limits your upside and the fees are real.

Want to use your own monthly amount? Take the financial literacy test. You will see your score and first money chart, then you can save your plan and next steps by email.

Sources

1. State Street Investment Management, SPY daily fund-value history. Accessed July 27, 2026.
2. State Street Investment Management, XLU daily fund-value history. Accessed July 27, 2026.
3. State Street Investment Management, SPDR historical distributions. Accessed July 27, 2026.
4. State Street Investment Management, Share splits for five Select Sector SPDR ETFs. Accessed July 27, 2026.
5. Federal Reserve Bank of St. Louis, FRED, Coinbase Bitcoin. Daily U.S. dollar prices supplied by Coinbase. Accessed July 27, 2026.
6. State Street Investment Management, State Street SPDR S&P 500 ETF Trust (SPY). Fund performance through June 30, 2026. Accessed July 27, 2026.
7. State Street Investment Management, Utilities Select Sector SPDR ETF (XLU). Fund performance through June 30, 2026. Accessed July 27, 2026.
8. Zillow Research, Housing data. ZIP-level Zillow Home Value Index data for 90210. Zillow may revise past estimates when its model changes. Accessed July 27, 2026.
9. U.S. Securities and Exchange Commission, Investor.gov, Exchange-Traded Products Providing Exposure to Bitcoin and Ether. Accessed July 27, 2026.
10. U.S. Securities and Exchange Commission, Investor.gov, Compound Interest Calculator. Accessed July 27, 2026.
11. Consumer Financial Protection Bureau, Credit cards. Accessed July 27, 2026.
12. Consumer Financial Protection Bureau, An essential guide to building an emergency fund. Accessed July 27, 2026.
13. U.S. Securities and Exchange Commission, Investor.gov, Beginners' Guide to Asset Allocation, Diversification, and Rebalancing. Accessed July 27, 2026.
14. U.S. Securities and Exchange Commission, Investor.gov, Investor Bulletin: Performance Claims. Accessed July 27, 2026.
15. Cardone Capital, Disclosures. Accessed July 27, 2026.
16. U.S. Securities and Exchange Commission, Accredited Investors. Last updated April 24, 2026. Accessed July 27, 2026.
17. U.S. Securities and Exchange Commission, EDGAR, Cardone Non Accredited Fund, LLC, July 29, 2025 post-qualification offering circular amendment. Accessed July 27, 2026.
18. U.S. Securities and Exchange Commission, EDGAR, Cardone Non Accredited Fund, LLC, Form 1-K for 2025. Filed April 30, 2026. Accessed July 27, 2026.