Q.Explain the functions of a stock exchange.

A stock exchange does far more for the economy than simply host buy-and-sell transactions — its functions touch investors, companies and the wider economy together.

A stock exchange performs several important functions:

1. Provides liquidity and marketability to securities — an investor can convert a holding back into cash almost any time the market is open, which is what makes people willing to invest in securities in the first place.
2. Continuous price discovery / fair pricing — bringing together a large number of buyers and sellers means the price at which trades occur reflects a genuine, transparent collective judgement of a security's worth.
3. Ensures safety of transactions — trading happens only through registered members under the exchange's rules and SEBI's oversight, backed by a clearing mechanism that guarantees settlement.
4. Contributes to economic growth — by channelling the savings of a large number of small investors into the productive investment needs of companies, supporting capital formation, employment and output.
5. Spreads equity / widens share ownership — an active, liquid exchange makes it practical for ordinary individuals, not only large institutions, to hold shares, spreading corporate ownership across a wide population.
6. Acts as a barometer of the economy — the movement of a stock exchange's benchmark index is widely read as a running indicator of investor sentiment and the economy's prospects.

Listing only 'buying and selling of shares' as the function, and missing the broader economic role — liquidity, price discovery, and being an economic barometer.