How many shares can I buy on my next trade without breaking my daily loss limit, given what I've already lost today?
Enter Today's Numbers
Your Result
Fill in the fields on the left and click Calculate to see how many shares fit inside what's left of today's loss limit.
How this is calculated
Your remaining risk budget for today equals your daily loss limit in dollars minus the losses you have already taken today.
Maximum shares equals your remaining risk budget divided by the risk per share on this specific trade, rounded down to a whole share.
This tool does not read your broker account or track open positions automatically. Enter today's already-realized losses yourself, and update the number again after each trade closes.
If your remaining budget comes out at zero or less, the math has already answered the question: your daily loss limit is used up, and the responsible move is to stop trading for the rest of the day.
This works for both long trades (stop below entry) and short trades (stop above entry). Only the distance between entry and stop matters for the share calculation.
Risk & liability disclaimer: This calculator produces a mathematical estimate based on the numbers you enter, including a daily loss figure you must track and enter yourself. It is not financial advice and does not guarantee any trading outcome. Trading Habits is not a broker-dealer, registered investment adviser, or tax professional, and is not affiliated with any broker, exchange, or data provider. We do not guarantee this tool is error-free or suitable for your situation, always verify results independently and consult a licensed professional before making any trading or financial decision. You could lose some or all of the capital you trade with.
Know Your Number Before You Click Buy
More Trading Tools
Tools for tracking, sizing, and respecting your daily risk limit.