Crypto Position Sizing: How Much Should You Actually Buy?

Most people who lose money on good signals lose it the same way: right signal, wrong size. They put half their account into one trade, the stop hits — as it will, roughly half the time, on any honest strategy — and the damage is so large the math can never recover. Position sizing is the fix, and it takes one formula.

The risk-percent rule

Decide the most you will lose on a single trade as a percentage of your account — professionals use 1–2%. Then size the position so that if the stop-loss hits, you lose exactly that amount:

Position size = (account × risk%) ÷ (entry price − stop price)

A worked example

• Account: $1,000 · risk per trade: 1% → you may lose $10
• Signal: buy BTC at $63,600, stop-loss at $62,000 → $1,600 of risk per BTC
• Size: $10 ÷ $1,600 = 0.00625 BTC (about $400 of exposure)

Notice what happened: you only deployed 40% of your account, and that number came from the stop distance, not from confidence or excitement. A wider stop automatically means a smaller position; a tighter stop allows a bigger one. The loss is fixed at $10 either way.

Every coin page on WiseTrade has a position size calculator under the trade plan that does this arithmetic for you — enter your account and risk% once and every signal shows its exact size.

Why 1–2% specifically

Because losing streaks are normal, not a sign the strategy broke. A 43%-win strategy will produce five losses in a row about once every 60 trades — routine. At 1% risk, five straight losses cost ~5% of your account: annoying, survivable. At 10% risk, the same routine streak costs ~40% — and you now need a 67% gain just to get back to even. The asymmetry of losses is the killer:

Thinking in R

Traders measure results in R — multiples of the amount risked. Losing a trade is −1R; a take-profit at 2.3× the stop distance is +2.3R. Our entire track record is published in R, which makes it portable: +30R means thirty risk-units of profit whether your unit is $10 or $1,000. Your account size doesn’t change the strategy — only your R changes.

The three rules that do most of the work

1. Never risk more than 1–2% of the account on one trade.
2. Always know the stop before entering — no stop, no trade.
3. Never move a stop further away to “give it room”.

Sizing won’t turn a bad strategy good. But it’s the difference between a good strategy making you money and that same strategy bankrupting you on its first normal losing streak.