System Support Products has announced the availability of Stock Calculator for Mac OS X, a stock trade profit/loss and share price calculator application. Stock Calculator is designed for online stock trading and provides information on total cash outlay, profit/loss calculations, “what if” analyses, and more. Stock Calculator for Mac OS X is priced at US$15 and a 30-day free trial is available for download now. Registered users of Stock Calculator for Mac OS can migrate to the Mac OS X version free of charge.