Skip to content

Business Mathematics and Statistics · Ch 7 — Stock and Shares

Distinction Between a Share and Stock

3

Distinction Between a Share and Stock

Although "share" and "stock" are often used loosely to mean the same thing in everyday speech, in business mathematics they refer to two distinct kinds of security with different arithmetic conventions. The table below sets out the differences that matter for calculation.

BasisShareStock
MeaningThe smallest equal unit into which a company's capital is dividedA fixed-income security issued in bulk (government stock / bond / debenture)
ReturnA variable dividend (for equity) or a fixed dividend (for preference), reckoned on face valueA fixed rate of interest, reckoned on nominal value
Unit of denominationIssued in fixed units of a set face value (e.g. ₹10, ₹100 each)Quoted and held per ₹100 of nominal value; any fractional amount can be held
NumberingEach share is distinctly numberedNot individually numbered
Paid-up statusMay in principle be partly paidAlways taken as fully paid
Ownership vs lendingAn equity shareholder is a part-owner of the companyA debenture / bond holder is a creditor (lender) of the issuer
Market quotationQuoted as a price per share (e.g. "₹100 share at ₹120")Quoted per ₹100 nominal (e.g. "9% stock at 90")
Definition 1Nominal value of stock

The face amount of stock held, always reckoned per ₹100; interest on stock is calculated on this nominal value, not …

Definition 2Quotation "at"

The market price of a security: for a share it is the price per share; for stock it is the price of ₹100 of nominal stock (so "9% stock at 90" means ₹10 …