About

Your money should have a job until the moment you spend it

Coinage is built on a simple belief: stocks — not cash — are the smartest primary currency available to ordinary people. Invest a little. Live a little better.

The problem with idle money

Average checking accounts pay 0.07% while inflation runs 2-4% annually. Every $10,000 sitting in cash loses approximately $233/year in real purchasing power — an invisible monthly fee of $19.42 that nobody sends you a bill for. Banks pay you nearly nothing while lending your deposits at 5-7%.123

Meanwhile, economist Thomas Piketty showed that when the return on capital (r) exceeds the rate of economic growth (g), people who own assets compound their wealth while people who only earn wages fall behind. The return on capital has averaged 4-5% per year since antiquity. Economic growth averages 1.5-2%. The gap compounds relentlessly. The top 10% of U.S. households hold about 88% of corporate equities. The bottom 50% hold about 1%.45

Global debt as of 2026 stands at about $348 trillion — roughly three times global GDP. No country is realistically paying this off. The plan is to inflate it away. Your checking account absorbs that cost. Diversified stock portfolios have historically risen with it.6

How Coinage started

It started in college with a pair of sneakers. The founder wanted to buy them but didn’t know much about the stock market. He invested the money in Google stock instead — and when it went up, used the gains to fund the purchase.

Then came a concert. A group of friends had general admission passes but wanted a better experience that cost double. Everyone invested some money together. The market cooperated. They upgraded their tickets. After the concert, over dinner, they talked about how the investment made the experience possible.

That sparked a bigger question: what if you could pay for everyday things — coffee, dinner, groceries — with your stock market gains? What if the 20-30% of money sitting idle in your checking account could be working for you?

After testing it manually for months — investing idle cash into safe stocks and selling at profit to cover credit card bills — the approach reduced monthly expenses by around 12%. But manually checking brokers and deciding what to sell was tedious and emotional. That’s when Coinage was built to simplify the entire process.

The deepest motivation: giving people who are suffering a little bit better life. Not life-changing. Just better. The world is getting more and more optimized for the wealthy. Coinage is for everyone else.

What $20 a week actually becomes

Illustrative annual return assumption: 8%, with a diversified dividend ETF portfolio.

TimelineInvestedPortfolioMonthly DividendsCovers
1 year$1,040$1,079$5.40Spotify
5 years$5,200$6,366$31.83Netflix + Spotify + coffees
10 years$10,400$15,857$79.28Phone bill
20 years$20,800$51,017$255Car payment
30 years$31,200$129,063$645Rent or groceries

Illustrative only: 8% assumed annual return, the S&P 500's long-run average since 1957. Not a forecast or a guarantee. Real results will differ and you can lose money.

Same $20. Same job. Same paycheck. The only difference is where the $20 went. Under this assumption, a checking account for 20 years holds $20,800 and the invested portfolio $51,017. A modeled gap of $30,217. A different return, including a negative one, produces a different result.

Every rolling 20-year period in S&P 500 history has ended positive before inflation, the worst of them at about 0.6% a year. History is not a forecast, and a future 20-year period could differ. Warren Buffett has said the best investment most people can make is a simple low-cost index fund. He backed this with a $1 million bet — over 10 years, an S&P 500 index fund returned 126% while five hedge funds averaged 36%.78

How Coinage works

Coinage connects to your existing brokerage account (Robinhood, Webull, Public, Moomoo, Tastytrade, and others) through SnapTrade, and to your credit cards through Plaid. It never holds your money or credentials. Coinage App LLC is an investment adviser registered with the SEC; the educational content and self-directed tools on this site are not individualized investment advice. You set the rules, and Coinage executes automatically when those rules are met.

  1. Connect your broker — Link your existing brokerage so Coinage can see your holdings.
  2. Create Nests — Build custom ETF-like portfolios with your chosen allocations. Set up recurring investments to dollar-cost average.
  3. Link your credit card — Coinage reads your transactions and statement balance through Plaid.
  4. Set selling rules — Choose which holdings to sell, set profit thresholds, and enable guardrails like profit-only mode.
  5. Spend normally — When your sell conditions are met, Coinage automatically sells based on your rules. If the market is up, you keep the gains. If it’s down, pay from your cash buffer.

What makes Coinage different

Selling Autopilot

This is the heart of Coinage. You set sell rules once — which assets, profit thresholds, guardrails like profit-only mode. Coinage monitors the market and automatically sells when your conditions are met. In 2024 the average equity fund investor returned 16.54% against the S&P 500’s 25.05%, a gap of 8.48 percentage points that DALBAR attributes largely to behaviour.9

Rule-based selling may help reduce emotionally driven investment decisions. Results will vary, and no rule-based strategy can eliminate behavioral or investment risk.

Nests — custom ETF-like portfolios

Build custom portfolios with precise percentage allocations. Invest on a recurring schedule. One-click rebalancing replaces the 20+ manual calculations and 8-12 individual trades required on Robinhood or Webull.

Goal Nests

Create financial goals — a vacation, wedding fund, car purchase, or down payment. Set a target amount and deadline. Research on earmarking finds that setting money aside for a specific purpose increases how much people save.10Coinage tracks progress with a visual progress bar and, when you reach the goal, sells holdings so you can achieve it faster than traditional saving.

Spend tracking

Link credit cards and bank accounts to see where your money goes. Track spending by category, compare month-over-month trends, and see which purchases are being covered by your investment gains.

The thinking behind Coinage

Stocks as currency. The central thesis of Coinage is that stocks should be thought of as a currency — a smarter, harder form of money than fiat USD. Fiat currency is managed by governments that cycle every 4-5 years with no long-term accountability. Stocks represent real ownership of real businesses — CEOs answer to shareholders every 90 days. This structural accountability doesn’t exist anywhere in government.

Technology makes everything cheaper. Your phone, your TV, solar energy, even cars that drive themselves — technology drives costs down over time. As tech gets cheaper, more people adopt it. More adoption means more business. More business means higher margins and higher stock prices for the companies building that technology. Apple, Google, Tesla, Nvidia — look at how far they’ve come in 20 years. Coinage’s thesis: hold your money in stocks of companies that build technology, and in well-diversified ETFs that have delivered consistent returns over decades.

Think of your portfolio like a garden you actually eat from. Most people treat investing like a garden they never harvest — they plant things, watch them grow, stress about the weather. What Coinage proposes: live in the garden. Your portfolio is your grocery store. You harvest the dividends and gains while the roots keep growing.

The financial socialization gap. Research shows financial literacy accounts for 30-40% of retirement wealth inequality. The primary source isn’t school — it’s parents. Wealthy families pass down not just money but the entire ecosystem of wealth-building: investment habits, cultural attitudes toward risk, and the belief that wealth-building is normal and achievable. If you didn’t grow up in that world, Coinage is the financial socialization you never received.11

Why small wins matter. Your first dividend — however small — is the moment your self-concept shifts from “worker” to “worker AND investor.” Research shows the single most powerful driver of positive motivation is making visible progress toward a meaningful goal. The first $0.47 in dividends is psychologically priceless. It doesn’t just confirm the math. It rewrites the story.12

Security and trust

Coinage takes security seriously. All sensitive data is encrypted with AES-256-GCM. Bank connections go through Plaid — your credentials never touch Coinage servers. Brokerage access is through SnapTrade — broker logins stay with your broker. Session secrets use Argon2id hashing with HMAC-SHA256 signing.

Coinage follows GLBA-aligned safeguards with least-privilege access and regular vendor risk reviews. Every sell rule is yours to set, pause, or remove. You can disconnect any linked account at any time — no lock-in.

Coinage App LLC is an investment adviser registered with the U.S. Securities and Exchange Commission. General educational content and self-directed tools are not individualized investment advice. Investment advisory services are provided to clients pursuant to an advisory agreement.

Coinage is not a broker-dealer and does not hold, manage, or take custody of your funds or securities. Brokerage accounts are held at the brokerage you connect, and orders are executed by that brokerage.

Sources

  1. 1.FDIC national rates, 2026
  2. 2.BLS CPI-U, 12-month, July 2026
  3. 3.Freddie Mac PMMS 30-year fixed 6.65%, August 2026; Federal Reserve average credit card APR ~21%
  4. 4.Thomas Piketty, Capital in the Twenty-First Century, 2014
  5. 5.Federal Reserve Distributional Financial Accounts, 2025
  6. 6.IIF Global Debt Monitor, early 2026: $348 trillion, ~305% of global GDP
  7. 7.S&P 500 rolling 20-year nominal total returns since 1928; worst window 1929-1948, ~0.6% a year
  8. 8.Buffett / Protégé Partners wager, 2008-2017; Berkshire Hathaway 2017 shareholder letter
  9. 9.DALBAR QAIB 2025 (calendar year 2024)
  10. 10.Soman & Cheema, "Earmarking and Partitioning", Journal of Marketing Research, 2011
  11. 11.Lusardi, Michaud & Mitchell, "Optimal Financial Knowledge and Wealth Inequality", Journal of Political Economy, 2017
  12. 12.Amabile & Kramer, The Progress Principle, 2011

Invest a little. Live a little better.

The stock market is the most powerful wealth-creation machine in human history. Coinage makes it work for anyone willing to start — even at $20 a week. Free to start, with Premium when you’re ready.

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