You can be right about direction, time, and volatility and still blow up — if you size badly. Risk management is the least exciting and most important skill in trading.
Size positions by what you can lose
Never ask “how much could I make?” first. Ask “what’s my max loss, and can I afford it?”
A common rule: risk no more than 1–2% of your account on any single trade. With a $10,000 account, that’s $100–$200 of defined risk per position. Defined-risk strategies (spreads, condors) make this easy — your max loss is known up front.
Prefer defined risk
Naked short options have undefined (potentially huge) risk. As you’re learning, lean on strategies where the worst case is capped:
- Long options — risk = premium.
- Vertical spreads — risk = the debit (or width − credit).
- Iron condors — risk = wing width − credit.
One bad naked trade can erase months of good ones. Defined risk takes that landmine off the board.
Have an exit before you enter
Decide in advance:
- Profit target — e.g. close a credit trade at 50% of max profit. Don’t be greedy for the last few dollars while risk stays high.
- Stop / adjustment point — when you’ll cut or roll a loser. Write it down; don’t improvise mid-panic.
Beware these traps
- Over-sizing after a winning streak.
- Selling naked options to chase premium.
- Holding through earnings without accounting for the vol crush.
- Averaging down on a thesis that’s already broken.
The mindset
Think in probabilities and process, not single outcomes. Any one trade can lose — that’s fine if your size is small and your edge is real. Survival first; profits follow.
Manage risk and the wins take care of themselves. This is the lesson most traders learn the hard and expensive way — you don’t have to.