After-Market Order
An after-market order (AMO) is an order placed by investors outside regular trading hours — typically after the market closes — that is queued and submitted to the exchange when trading next opens.
After-market orders solved a fundamental practical problem for Indian retail investors: many salaried professionals, students, and part-time investors could not monitor the markets during regular NSE and BSE trading hours of 9:15 AM to 3:30 PM. AMOs allowed these investors to respond to news, analysis, or portfolio decisions at any time — including late evenings or early mornings — by placing orders that would be routed to the exchange when trading commenced the following day.
The AMO window varied slightly across brokers but broadly covered the period from after 3:30 PM on a trading day through to approximately 9:00 AM the next morning. Orders placed during this window were queued by the broker and submitted to the exchange as market-open orders or regular session orders at the start of the next trading day. In most implementations, AMOs were sent during the pre-open session or at the beginning of the regular session at 9:15 AM, depending on the broker's system design.
A key risk of AMOs was overnight gap exposure. If a company announced earnings, an acquisition, or a regulatory development after the previous close, the stock could open significantly higher or lower than the price at which the AMO was placed. A limit AMO would not execute if the stock opened beyond the specified limit, protecting the investor from buying at an unacceptably high price or selling at an unacceptably low price. A market AMO, by contrast, would execute at whatever price was available at the opening, which could be far from the investor's expectation.
Indian discount brokers, notably Zerodha, Upstox, and Groww, prominently featured AMO functionality as part of their core retail proposition, recognising that a large portion of their user base was unable to trade during market hours. Some brokers placed restrictions on the types of securities eligible for AMOs — for instance, not accepting AMOs for securities in the Trade-to-Trade segment, upper or lower circuit-locked stocks, or stocks with special trading conditions.
From a settlement perspective, AMOs executed like any other regular-session order, going through the standard T+1 settlement cycle on Indian exchanges. There was no separate settlement track or counterparty risk profile for AMO-executed trades compared to intraday or regular session orders.