Free calculators
Sizing and risk arithmetic decides more outcomes than entries do. These run entirely in your browser — nothing is stored.
How many shares fit inside the risk you set
Enter account size, the percentage you are willing to risk, your entry and your stop. Get the share count and dollar risk that combination implies.
What one loss costs your account
Turn a risk percentage into dollars, and see how a losing streak compounds against the account at that size.
What a steady return actually becomes
Project a starting balance forward at a chosen annual return, with or without contributions, and see the growth year by year.
The gain a decline demands back
Enter a peak-to-trough decline and see the gain required to return to even — the asymmetry that makes depth matter more than upside.
Size a real position
Score any ticker free, then size it with these numbers.
Autonium publishes research, not recommendations. Scores, factors and written reads describe historical and current data and are not buy or sell advice. Not financial advice. Market data is refreshed on a schedule and may lag. See our methodology and disclosures.