Crypto: Where to Start
Crypto is best learned in the order the risks arrive: how the market differs from a stock market, what a wallet actually holds, how to buy and where to keep it, how much to hold, and what every sale or swap means for tax. Custody and sizing matter more than which coin.
Most people meet crypto through a price chart or a coin someone recommended. This path starts somewhere less exciting and more useful: what is structurally different about the market, and what you actually own when you own a coin, because those two answers decide most of what goes wrong later.
The reading path
- How Is Trading Crypto Different? What is structurally different: no close, no single price, and a funding payment on perpetual contracts.
- How Is Trading Bitcoin Different? The largest coin: an ordinary chart, unusually large moves, and many exchanges each with its own price.
- Ethereum: A Network That Runs Code A network that runs code as well as recording transfers, and why its fee ties use to demand.
- Wallet: It Holds Keys, Not Coins The idea everything else depends on: a wallet holds the keys, and the key is the ownership.
- How to Buy Your First Crypto The venue before the coin, the jurisdiction check, and a size you could watch fall by half.
- How to Use a Crypto Exchange An exchange is a venue, a custodian and a counterparty at once. The terms and fees decide more than the app.
- How to Store Crypto Safely The custody decision made on purpose, with a recovery phrase you have actually tested.
- Cold Wallet: One Risk for Another Offline storage stops remote theft and swaps it for loss and damage. It trades one risk for another.
- Crypto in a Portfolio How much to hold, sized from what you could lose completely rather than from a forecast.
- Crypto DCA Calculator Buying a fixed amount on a schedule, and what it does and does not do to the result.
- Crypto Tax: Every Swap Is a Sale Why every disposal, including a swap between two coins, is usually a taxable event.
- How to Avoid a Trading Scam The checks that catch most frauds: registration on the regulator's own site and an early small withdrawal.
How to read this path
Pages one to three are the market. Crypto trades every hour of every day, across many exchanges that each report their own price and volume. That changes how a chart is read and how a position is held, and it comes before any individual coin because it applies to all of them.
Page four is the idea the rest depends on. A wallet stores keys, and the coins are entries on a public ledger. Until that is clear, the pages about buying and storing read as instructions rather than as reasons, and the reasons are what keep the instructions from being skipped.
Pages five to eight are buying and keeping. They follow the order of the real decisions: choose a venue that accepts your jurisdiction, learn what the venue can do with your balance, then decide where the coins live afterwards. Custody is the decision most beginners leave until last, which is why it is placed before sizing here.
Pages nine and ten are how much. A crypto allocation has no earnings or cash flow to value it against, so the sizing page works from what could be lost entirely. The calculator covers buying on a schedule and is honest that it narrows the range of outcomes rather than raising the average.
The last two pages are the consequences. Tax arrives on every disposal, and scams arrive through the same channels as legitimate offers. Both are cheaper to understand before the first purchase than after.
A worked example
The site’s monthly bitcoin file shows what “volatile” means in numbers. Bitcoin closed December 2017 at $14,156.40. It closed January 2019 at $3,457.79. That is 3,457.79 / 14,156.40 = 0.244 of the earlier value, a fall of 75.6%, measured only on month-end closes.
Now size a holding against that. Take a hypothetical $20,000 portfolio with 5% in bitcoin, which is $1,000. A repeat of the 2017 to 2019 fall would take it to $244, a loss of $756, or 3.8% of the whole portfolio. The same fall on a 50% allocation would cost $7,560, 37.8% of the portfolio.
The allocation page’s rule is to start from the second number, the amount that could be lost, and work back to the size. Written that way, the question stops being how much bitcoin might rise and becomes how much of a fall you have already decided you can absorb. The fall used here is a real one from the file; the portfolio is hypothetical.
The original data
The monthly file covers 144 month-end closes, from $386.94 in September 2014 to $78,548.63 in August 2026. The highest month-end close in that span was $115,758.20 in July 2025, so the August 2026 close sat about 32.1% below it. The fall from the November 2021 close of $57,005.43 to the November 2022 close of $17,168.57 measured 69.9% on the same basis. 55.9% of months closed higher than the month before. The best single month gained 69.6% and the worst lost 37.8%.
Crypto is a large subject in trading video titles. In the site’s study of 24,971 YouTube trading and investing videos, 894 titles name crypto, cryptocurrency or cryptocurrencies, from 586 channels, with a median of 13,397 views. Titles naming bitcoin or BTC number 335, from 235 channels, with a median of 11,630. Wallet titles are rare, 27 videos, but their median is 30,595, almost three times the study’s median of 10,684. Crypto tax titles number 8. Counts are unique videos whose title contains the phrase as whole words, with views as displayed in August 2026.
When it fails
Month-end closes understate the real swings. The 75.6% fall above is measured from one month-end to another. Prices went lower inside those months, so anyone who held through it saw a deeper fall than the monthly file records. Size against the worse number.
An exchange can fail, and a balance held there is a claim against it. Coins left on a venue depend on that company staying solvent and honest. Moving them to a wallet you control removes that risk and hands you a different one: losing the key or the recovery phrase loses the coins, with nobody to call.
Rules differ by country and change often. Which venues accept which residents, how staking rewards are taxed and what counts as a disposal all vary by jurisdiction. The pages on this path describe how the pieces work in general. They are not tax or legal advice for any particular country.
Past falls are not a floor. A 75.6% decline is the worst in this file, not the worst possible. A coin can fall further than any previous episode, and smaller coins have fallen close to 100% and stayed there.
Related
A crypto holding sits best inside a plan that already has its basics in place, which the investing basics path covers from the emergency fund onward. For anyone trading crypto rather than holding it, the risk management path covers the stop and size arithmetic that the larger moves make more important, not less. When the tax year ends, how to report crypto taxes turns the swap-is-a-sale rule into a procedure.
This page is educational, not financial advice. Test every idea on your own charts before risking money.