Odd lot

Before dematerialisation, stock exchanges traded in fixed lot sizes. A holding smaller than that lot — an odd lot — could not be sold on the same terms as a full lot; it often needed a separate, less liquid route and typically fetched a worse price.

The workbook lists odd lots as one of the specific problems the old, paper-based settlement system created, alongside bad deliveries and mutilated certificates. It does not describe odd-lot dealing mechanics in any further detail — its point is simpler: dematerialisation made the problem disappear.

Chapter 2, section 2.3.1, credits the Depositories Act, 1996 with freeing investors "from the problems like bad deliveries, odd-lots etc." because the tradable lot is reduced to "one unit" in the depository system. Once a security is fungible and dematerialised, there is no certificate-based lot size left to be odd against — a holding of even a single share, bond or debenture can be bought, sold or transferred exactly like any other.

The workbook does not give a numeric definition of how large a standard lot was, or what discount an odd lot suffered in the physical market — only that the depository system removed the distinction entirely.

Before demat, a stock traded on the exchange in a market lot of, say, 100 shares. An investor holding 35 shares in physical form could not simply sell them at the same market price and terms as a 100-share lot — the odd lot needed a separate mechanism and often a lower realised price.

In today's depository system, that same investor holding 35 dematerialised shares faces no such problem: the tradable lot is one unit, so she can sell all 35, or even just 1, on the exchange like any other holding. The odd-lot problem the workbook describes simply does not arise for dematerialised securities.

Chapter 2, section 2.3.1, names "odd-lots" as one of the specific investor problems the Depositories Act, 1996 was designed to remove, in the same sentence as bad deliveries. Expect it tested as part of a "what problems did dematerialisation solve" recall question, alongside bad delivery and mutilation.

• The workbook gives no figure for what counted as a market lot, or the size of an odd-lot discount — do not invent one; the fact tested is that the problem was eliminated, not its old mechanics.
• Odd lots and bad deliveries are two separate, specifically named problems — do not merge them into one answer.
• The mechanism that removed odd lots is the tradable lot falling to one unit, a direct consequence of fungibility, not a separate odd-lot rule.