Shares on Issue

Shares on issue is the complete count of a company's ordinary shares in existence, held by everyone: institutions, retail investors, directors, founders, strategic holders and escrowed parties alike. It is the figure companies report to the ASX in their Appendix 2A and 3B notices, and it changes whenever new equity is created or cancelled.

It matters here because it is the denominator in every short interest percentage on this site. ASIC publishes two numbers side by side for each security — reported short positions and total product in issue — and dividing one by the other produces the percentage used to rank stocks. Using the same denominator across the market is what makes a mid-cap and a large-cap comparable.

Corporate actions move the number, sometimes substantially. Placements, rights issues, share purchase plans and the conversion of options or performance rights all increase shares on issue; buybacks reduce it. Because the short position percentage is a ratio, a large capital raising can lower reported short interest even when the number of shares sold short has not changed at all. Reading a sudden drop as short covering, when the register simply grew, is a common error.

Shares on issue is broader than free float. Float excludes shares that are not genuinely available to trade — founder stakes, escrowed shares from a recent listing, strategic corporate holdings, cornerstone investors. Short interest measured against free float is always higher, sometimes far higher, than the same position measured against shares on issue, which is why the two must never be compared directly.

The figure is also not the same as market capitalisation, though it is an input to it. Market cap multiplies shares on issue by the share price; shares on issue is a pure count and moves only on corporate actions, not on price.

A few structures complicate the count. Companies with more than one class of equity, stapled securities such as listed property and infrastructure trusts, and foreign entities quoted through CHESS Depositary Interests all report against the specific quoted line rather than a single consolidated share count. Because ASIC's short position data is keyed to the quoted product, the percentage always refers to that product's own shares on issue.