FTSE 100 ex-dividend dates: September 2026

High-yielding Aviva (LSE:AV.) will be among the trading opportunities when a slender line–up of six FTSE 100 companies are marked ex-dividend during September.

Admiral Group (LSE:ADM) and Prudential (LSE:PRU) are also due to begin trading without the value of their forthcoming dividend payments, along with Antofagasta (LSE:ANTO), Endeavour Mining (LSE:EDV) and Lion Finance Group (LSE:BGEO).

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They account for just over 3% of the index by weight, which compares with more than half in August’s bumper month for heavyweight ex-dividend stocks.

Some investors use ex-dividend dates as a way to time their dealings, including income seekers who may wish to buy higher-yielding shares before the deadline.

Those interested in a capital gain rather than income might wait until the ex-dividend date in anticipation that the dividend impact will make the shares cheaper to buy.

Tax reasons may also mean an investor would rather not receive income, in which case they might sell ahead of the ex-dividend date.

Markets can be volatile and timing your entry into a stock based on certain dates in the diary carries a risk that the share price moves against you.

At a current 5.7%, Aviva shares have the highest forward yield of the six companies due to be marked ex-dividend in September.

The interim award of 14p a share is due for payment on 15 October, with the increase of 7% on a year earlier in line with Aviva’s policy to grow the cash cost by mid-single digits.

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Shares traded last week near to 728p, meaning the impact of the ex-dividend cut-off point on Thursday 3 September stood at just below 2%.

The same day’s ex-dividend move by Admiral will have an impact of about 1.75% after the car insurer declared plans to pay 70.5p a share on 2 October.

Admiral shares yield dividend income of 3.9%, having risen by 8% to over 4,000p in the period since it posted interim results on 6 August.

The stock had been as low as 2,650p in January, when fears over the disruptive impact of autonomous vehicles on the car insurance sector dented the valuation.

Sentiment has turned on an improved market pricing outlook, prompting Berenberg analysts to declare that the shares now appeared fairly valued.

They added last week: “We keep our price target unchanged at 4,200p but trim our estimates, reflecting our slightly more cautious view of future reserve releases in 2026 and 2027.”

The other insurer on September’s ex-dividend list is Prudential, which posted interim results on Wednesday evening that included a dividend increase of 15% to 8.88 US cents per share.

The shares, which have a current yield of 2%, will be marked ex-dividend on 10 September ahead of a 22 October payment date.

The Pru’s dividend policy remains to grow broadly in line with net operating free surplus generation, meaning that it expects the payout to rise by more than 10% in both 2026 and 2027.

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Antofagasta, which is marked ex-dividend on Thursday, is due to pay an interim dividend of 30.1 US cents (currently worth 22.1p) on 30 September.

The award represents an 81% increase on a year earlier, in line with the copper miner’s policy to distribute 35% of underlying net earnings. The shares yield dividend income of 1.5%.

Endeavour Mining shareholders are also in line for a big dividend increase after the West Africa-based gold miner declared its intention to pay a record 95 US cents a share on 9 October.

The half-year award, which has an ex-dividend date of 10 September, is worth $80 million (£59 million) more than the company’s minimum commitment at $230 million.

Endeavour said in July’s interim results that its shareholder returns programme had now delivered over $1.9 billion since the first quarter of 2021, which is 85% above its minimum commitment for the period.

It said: “Our most significant value creation lever has been, and continues to be, organic growth through exploration and project development.”

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Over the 2026-28 period, Endeavour expects to return a minimum dividend of approximately $1 billion to shareholders. This comprises $300 million for 2026, $325 million for 2027 and $350 million for 2028, as long as the realised gold price over the period exceeds $3,000 an ounce and the company’s leverage remains below its long-term target.

The company added: “At prevailing gold prices, Endeavour expects to significantly supplement minimum returns through additional dividends and share buybacks.”

The ex-dividend calendar is completed by Lion Finance Group, whose subsidiaries deliver banking and financial services in the rapidly growing markets of Georgia and Armenia.

The shares, which have risen by more than 40% this year, yield dividend income of 2.4%.

It is due to make a quarterly payment of 3.05 Georgian Lari (86p) on 25 September, resulting in a 15.7% increase in the total for the first half of the financial year. The ex-dividend date is 10 September.

Source: interactive investor, ShareScope. Data and dividend conversions to sterling from US dollars and euros at exchange rate correct on 27 August 2026. FTSE 100 indicative index weight data as at closing on 30 June 2026.