Sell-Side refers to the aspect of the financial market where securities are sold to buyers, typically by investment banks, institutional investors, and other financial institutions. These institutions act as intermediaries between issuers of securities (such as companies issuing stocks or bonds) and buyers, such as retail investors or other financial institutions.The sell-side typically includes activities such as underwriting, market making, and trading. The counterpart to the sell-side is the buy-side, which refers to the aspect of the financial market where securities are bought by investors such as mutual funds, hedge funds, and pension funds.