Investing on ADX: How Abu Dhabi’s Exchange Works for Retail Buyers

The Abu Dhabi Securities Exchange is the larger of the UAE’s two exchanges by market capitalisation, and getting onto it as a private investor is more straightforward than most people assume. Here is how ADX actually works — including two details that almost every online guide still gets wrong.

Two things most guides have stale

ADX trades Monday to Friday, not Sunday to Thursday. The UAE moved to a Monday–Friday working week and the exchange followed; ADX’s own branch opening hours and its corporate action notices both confirm it.

Continuous trading ends at 14:45, not 14:50. If you are placing orders near the close, that five minutes matters.

The trading day

The session runs in five stages, all times Gulf Standard Time:

There is also a Buy-in Session from 15:15 to 15:30, described by ADX as an auction for trades that failed settlement because the seller did not deliver the securities. Most retail investors will never encounter it.

Getting an investor number

You cannot trade without a NIN — an investor number issued by ADX. In the exchange’s own words it is “an identification number for investors… Through this number, all transactions on the Abu Dhabi Securities Exchange (ADX) can be initiated including clearing, settlement and trading transactions.”

There are four ways to apply:

The conditions are simple: you must be over 18, and the applicant or a legal representative must be present in person when submitting — unless you use the smart app. Documents issued outside the UAE must be notarised and attested by the UAE Embassy in the issuing country, that country’s foreign ministry and the UAE’s.

Note the app route is explicitly open to people without an Emirates ID, which means non-residents can obtain a NIN. That is unusual among regional exchanges and is worth knowing if you are investing from abroad.

We are not quoting a NIN fee. ADX publishes a fee schedule but it was not retrievable, and an invented number is worse than none — ask your broker.

Placing a trade, and settlement

Once you have a NIN you choose an ADX-accredited broker and place orders through the broker’s website or app, by phone, in person, or at trading screens at the exchange.

Settlement is T+2 rolling: trades settle two business days after execution. Nothing moves on T+1; on T+2 by 09:30 cash and securities settle electronically by book entry, with no physical certificates. First Abu Dhabi Bank is the designated settlement bank and the standard settlement currency is the dirham. Settlement does not occur on UAE and Central Bank public holidays.

Foreign ownership — there is no single cap

This is the question overseas investors ask most, and the answer is not the one usually given. ADX’s own FAQ states: “Foreigners can own shares in listed companies in ADX (up to 100% of shares in some). However, it depends on the listed company’s policies and the Memorandum of Association to decide on the ownership limit for foreigners.”

So there is no market-wide foreign ownership limit — the cap is set company by company. Anyone quoting you a blanket 49% figure is wrong. Check the individual company.

The exchange and its regulator

ADX was established on 15 November 2000 under Local Law No. 3 of 2000, and converted from a public entity into a public joint stock company on 17 March 2020. It is part of ADQ, which is worth knowing when you consider how much of the listed board shares that ownership lineage.

On the regulator, note a name change that has not filtered through to most coverage: oversight sits with the UAE Capital Market Authority, formerly the Securities and Commodities Authority (SCA), founded under Federal Law No. 4 of 2000. The old sca.gov.ae address now redirects permanently to the authority’s new domain.

At the close on 19 August 2026, ADX carried 129 listed securities with market capitalisation of about AED 2.92 trillion. Treat that as a dated snapshot rather than a fixed fact.

The indices — and what the flagship actually holds

ADX partnered with FTSE Russell, which became administrator of the co-branded indices in January 2022. The broad measure is the FTSE ADX General Index, representing companies on the Main Market. The family also includes dividend, ESG-screened, Islamic and growth-market indices, plus eleven sector indices.

The tradable flagship is the FADX 15: the largest fifteen companies from the general index universe by free-float adjusted market capitalisation, screened on 20-day median traded value, reviewed twice a year in March and September. As at 19 August 2026 its constituents were 2POINTZERO, ADCB, ADIB, ADNOCDIST, ADNOCDRILL, ADNOCGAS, ADNOCLS, ALDAR, ALPHADHABI, EAND, FAB, IHC, LULU, PRESIGHT and SIB.

One correction worth making because it appears in a lot of summaries: AD Ports is listed on ADX but is not a FADX 15 constituent. Our profile of AD Ports Group covers that company in its own right.

The Growth Market

ADX’s second board is the Growth Market — the current official name, not “Second Market” — designated for listing shares of private joint stock companies through private placement or direct listing, with its own index. The senior board is the Main Market.

Before you start

Two practical points. First, ADX and DFM are separate exchanges with separate investor numbers; our guide to investing across DFM and ADX covers holding both, and our UAE stock markets guide covers IPOs and access. Second, you will need a UAE bank account for settlement — see our guide to opening one as an expat. Investors interested in the sustainable side of the market may want our report on Abu Dhabi’s green sukuk.

This article is general information, not investment advice. Primary sources: About ADX, ADX on becoming an investor, ADX clearing and settlement, FTSE ADX indices and the UAE Capital Market Authority.