What if you'd bought AMZN every Amazon purchase?
If you'd bought $1 of AMZN every time you checked out on Amazon since May 2016 — roughly eight transactions a month — you'd have put in about $968 and be holding around $2,388 worth of Amazon today.[1]Based on historical returns. Past performance doesn't predict future results. That's a money-weighted return of about 17% per year. It's also, worth saying, a pick in hindsight.
The short version
- $8 a month into AMZN for ~10 years became about $2,388 from $968 contributed. Money-weighted return: ~17% annualized, as of April 2026.
- AMZN is a winner. We're showing it because you asked the question, not because it's representative.
- The journey included a 46% peak-to-trough drawdown in 2022 — on paper, your $1,900-ish position went to roughly $1,000 before recovering.
- What this article describes hypothetically, Slyce does automatically: purchases at amazon.com trigger a fractional-share buy of AMZN, receipt by receipt.
The number, set up honestly
The math: eight $1 contributions a month, starting May 2016, each buying AMZN at that month's adjusted close (dividend reinvestment is not relevant here — Amazon has never paid a dividend). Run 121 months. End in April 2026.
Contributed: $968. Current value: about $2,388.[1]Based on historical returns. Past performance doesn't predict future results. That's roughly $1,420 of gain on a decade of $8-a-month purchases — a 2.5x on money that was spread across the whole window, not dropped in at the start.
The internal rate of return on that cash-flow stream is about 17% per year.Based on historical returns. Past performance doesn't predict future results. For scale: the S&P 500 has historically returned roughly 10% per year nominal since 1957.[2]Based on historical returns. Past performance doesn't predict future results. AMZN over this specific window outperformed the index by a meaningful margin. Other windows would look very different.
Why we're showing you the winners
Worth saying plainly: we picked AMZN in hindsight. In 2016 you didn't know AMZN was going to compound at 17%. You didn't know which of the fifty large-cap tickers on your credit-card statement was the winner. The same analysis run on a stock we now know underperformed — DIS, say, or NKE — ends with less money than was put in.
The reason this cluster exists is not to recommend AMZN. It's to explain the mechanic: if you had a system that captured a slyce of whatever you happened to buy, the portfolio would reflect your spending. Some of those slyces would be winners. Some would be losers. The spread is the point, not the pick.
That's why our pitch is "a little bit of every company you shop at," not "a lot of Amazon." See the spend-to-own guide for the whole thesis and the counterfactual cases the pillar covers.
What Slyce actually does
You don't open the Slyce calculator to simulate this. You spend at Amazon the way you already spend at Amazon, and Slyce buys a fractional share of AMZN for you on the way through.
The mechanic: you connect the card or account you shop with. Purchases at amazon.com pass through a rule that routes a small percentage — the default is 3% — into a real brokerage account in your name. The shares are AMZN, not a derivative or a token. They pay no dividend (Amazon doesn't pay one), but they split with AMZN, vote with AMZN, and sell on any normal brokerage execution. Your Slyces tracks the holding; The Feed tracks the receipts.
The point of doing this automatically is the same point as the Costco version of this math or the Walmart version of this math: the capture happens at the moment of purchase, not in a separate ritual that most people never get around to.
The shape of the return
The ending balance is the story the article opens with. The drawdown is the part that would have made you quit.
AMZN's worst peak-to-trough decline over the window was a 46% drop in 2022, when the post-pandemic tech reset hit mega-cap growth stocks hard.[1]Based on historical returns. Past performance doesn't predict future results. On the DCA trajectory, that meant watching a position worth roughly $1,900 earlier in the year fall to roughly $1,000 by the autumn. That's about 95% of the total contributions you'd made at that point, gone on paper, with no certainty it would come back.
It came back. By late 2023 the account was above its 2021 high, and by 2026 it was up another 40% on top of that. The return you see today is contingent on not having sold in 2022 — which is a higher bar than it sounds, because the companies that felt the safest on the way up feel the most broken on the way down.
This is the part of every historical-return article that doesn't photograph well. The 10-year chart shows a line going up. The lived experience is the line going through a long red canyon in the middle.
Pitfalls
Three specific things to name, not just as disclaimers but as real risks to the idea of buying AMZN because the calculator said it worked.
Survivorship bias. AMZN is one of the 20 tickers in the Slyce calculator's pre-built set. That set is drawn from companies that are still publicly traded and still relevant to retail spending. Companies that were large retail spenders and are now defunct — Sears, Circuit City, Toys R Us, Bed Bath & Beyond — would have been on an equivalent list in 2010. They're not here now. The calculator's universe is survivor-biased by construction, and any historical-return story drawn from that universe inherits the bias.
Concentration risk. The math above is one ticker. A spend-to-own account that shops only at Amazon ends up concentrated in Amazon. The intended shape of a Slyce portfolio is the mixture of tickers your spending actually touches — AMZN plus whatever groceries, gas, restaurants, and travel you buy. One-ticker concentration is the tail risk; diversification comes from the breadth of the wallet, not from an asset-allocation model.
Past returns ≠ future returns. AMZN compounding at 17% over the 2016–2026 window does not mean AMZN compounds at 17% over the 2026–2036 window. Large-cap growth stocks have periods where the math looks this generous and periods where the math looks punishing. This window happens to cover the first kind. The S&P 500's long-run ~10% tells you what diversified equity has done across many of both kinds of windows.[2]Based on historical returns. Past performance doesn't predict future results.
For the custodial version of this — running the same mechanic inside a kid's account that also qualifies for the federal program — see the Trump Accounts guide.
FAQ
How was the $2,388 number calculated? We pulled AMZN's monthly adjusted closes from Yahoo Finance for the window May 2016 – April 2026, simulated $8-per-month dollar-cost averaging (eight $1 purchases, matching Amazon's typical monthly visit rate), and computed the ending portfolio value using the April 2026 close. The contributions total $968; the portfolio finished around $2,388. Re-runs will differ as the window rolls and prices move.
What was the worst moment in that decade? Autumn 2022. AMZN drew down about 46% from its 2021 peak before bottoming around $80 per share (adjusted). A DCA account started in 2016 would have been holding roughly $1,000 of AMZN at that trough — on $850-ish contributed at that point. The account was near break-even on paper until prices recovered through 2023.
Does this include dividends? Amazon has never paid a cash dividend. The adjusted-close series we used accounts for stock splits (most relevantly the 20-for-1 split in June 2022), so the share count and per-share prices are comparable across the window.
Can I actually buy fractional AMZN through a normal broker? Yes. Every major U.S. broker supports fractional AMZN orders — you place the order in dollars and the broker computes the share fraction at execution. The mechanical capability is why spend-to-own works at all. The slyce you'd own through this product is the same fractional AMZN you could open at Schwab; the difference is the trigger mechanism.
Why $1 per transaction and 8 transactions per month? Those are the defaults in the Slyce calculator for Amazon, drawn from typical household shopping patterns. If your actual Amazon spend is higher or lower, run the calculator with your own numbers — it recomputes the trajectory for any contribution rate.
What if AMZN crashes again? If you're still contributing, you buy more shares at lower prices — the DCA mechanic dampens the pain. If you've stopped contributing, you ride the drawdown on existing shares and wait. The long-horizon math only works if you stay through the drawdowns, and 2022 is the reminder that those drawdowns are not abstract.
Next steps
If you want to run this same math against your actual spending — the stores you actually shop at, the amounts you actually spend — the Slyce calculator does it for 20 tickers at once. The ending balances are less interesting than the shape: how much you'd have contributed, where the drawdowns were, and how much of the ending balance came from a handful of winners versus a broad spread across your wallet.
If you want to skip the modeling and sign up for the product, that's the home page and the waitlist below.
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Published Apr 14, 2026 · Updated Apr 14, 2026