TraderPro Calculator

Live position sizing for TraderPRO buy/rebalance signals: price, shares, cost, currency conversion, and inline corrections.

TraderPro Calculator adds live position-sizing math directly onto TraderPRO's buy and rebalance-to-% signals: current price, the position-size % being used, the resulting share count, and the total cost — in both the stock's own currency and your account currency. For every buy or rebalance signal, the extension appends a few fields below the site's own fields, styled to match the page. If a signal's ticker is malformed or its price should come from a manually-entered target instead of the live quote, a small pencil icon next to each field lets you correct it right there — the correction applies only to that one signal and is remembered across reloads. A floating panel on the page (dock to the right edge, minimize any time) is where you set your account balance and an optional global strategy- weight multiplier. Sell/close-position signals are left untouched. Prices come from Yahoo Finance's public chart endpoint (falling back to Stooq), currency conversion from Yahoo's FX pseudo-tickers (falling back to Frankfurter.app) — all free, keyless, public data sources. Nothing is sent to any server the developer controls, because there isn't one; your balance, settings, and per-signal corrections stay in your own browser (chrome.storage.sync). Not affiliated with, endorsed by, or sponsored by TraderPRO. Not financial advice — always double-check the numbers before placing a trade.