Domestic stock exchanges in India operate for a little over six hours each weekday, yet news that moves markets arrives at all hours. Central bank decisions, commodity swings, and corporate announcements do not wait for the opening bell. To bridge this gap, a futures contract on the country’s benchmark index trades for nearly twenty-one hours a day. Investors who watch GIFT Nifty Live during the evening hours are effectively seeing how the world is reacting to fresh developments while domestic markets sleep. Those simply curious about where the Nifty Share Price might be headed tomorrow find that this extended window offers the earliest possible clues. Understanding how this long trading day is structured, and what it makes possible, reveals why it has become such an important part of India’s market infrastructure.
The Two-Session Structure
The contract trades across two unique sessions. The first one commences at 6:30 AM Indian Standard Time and concludes at 3:40 PM, with the session resuming afresh at 4:35 PM until 2:45 AM the following morning. Both the sessions bracket the domestic trading day and extend beyond on either side
The rationale behind this timing is that the first session overlaps with
the Indian cash market and the closing stages of the overseas markets, enabling investors to take up or square down positions while the domestic bourses are open
While the second session extends into the late evening and overnight, facilitating the incorporation of fresh news developments from Europe as well as the delayed knock-on effects of events that occur in Indian markets.
Long hours are beneficial to both domestic and overseas participants
For the global funds, this means they can tweak India exposure at any point during the day, which is crucial because a significant development occurring overseas during the night need not necessarily wait until the next morning to impact India.
This, in turn, enables domestic institutional investors in the special economic zone where the exchange is located to execute market making and hedging transactions, or to restructure their exposure in tandem with overseas clients’ requirements. In addition, such extended hours facilitate a gradual adjustment of India equity benchmark exposure in the light of fresh news developments that arrive during the night, thereby enhancing price discovery.
For example, when information hits the markets, prices have to adjust. In the absence of an active overnight market, this adjustment would be compressed into the first few minutes of the domestic session, resulting in lopsided opening ranges. By extending into the overnight period, it allows the adjustment process to spread out over a longer period and, as a consequence, the domestic session opening ranges tend to be more in line with prevailing expectations.
Similarly, many important scheduled events, such as central bank policy announcements or quarterly results announcements, often happen outside domestic hours, so that an extended session facilitates hedging ahead of the event and taking fresh positions as soon as its outcome is known.
The extra hours provide a mechanism to bridge over to overseas markets. As a result, movements in global equity indices, commodity prices and currency rates during the night are all reflected in the price of this contract
To illustrate, elevated crude oil prices due to tensions in West Asia have adversely impacted Indian equities due to the country’s heavy import dependence, while firmer global bond yields have also put emerging market assets under pressure. The overnight trading session enables investors to capture and assess such developments as they unfold, and also provides an indication of the extent of pressure that these developments would put on the domestic market.
There are certain limitations pertaining to extended hours. Firstly, liquidity during the overnight period tends to be thinner than during the normal domestic session, which widens bid-ask spreads and enhances the possibility of prices swinging on small orders.
Second, the contract being a derivative, its price can depart from the underlying index due to financing costs, divergent expectations or temporary imbalances in demand and supply. Consequently, interpreting its movements requires an understanding of some nuances which investors would not have in the case of an index.
For domestic investors, the presence of this contract has indirect implications. Retail investors in India typically do not participate in derivative contracts, but nevertheless benefit from this product because the greater clarity on prices at the open of the domestic session would result in a smoother start to the domestic session and reduce the likelihood of wide gaps.
For example, investors can utilise this contract to get a perspective on the impact of news developments that occurred during the night, or on how the domestic session might start. Similarly, watching how the price evolves during the hours preceding the open of the domestic session can provide a useful pointer on whether sentiment is poised to improve or deteriorate. When used in conjunction with information on prices of commodities, currencies and the pattern of flows of overseas investors, it can enable investors to form a more rounded view of the likely trajectory of the domestic market.
A deeper integration with global markets is being effected in a planned way. It is part of a larger initiative to make India’s capital market more accessible to global investors while retaining regulatory oversight in the domestic markets. This will result in a steady increase in products, as well as depth in all products. For retail investors, the upshot of all this is that markets do not sleep at the close of the domestic session but continue to function through the night.
