FTSE 100 market cap¹
$3.47T
2025 GDP (World Bank)
$4.00T
FTSE 100 cap ÷ GDP
87%
Dollar volume, 23 Oct
$7.5B
Turnover, FTSE 100
0.22%
Installed power capacity, 2025
111 GW
GBP/USD
1.3368
Session figures as of 23 Oct.
¹ The sum of the 98 FTSE 100 companies' market caps, each its closing price × shares outstanding, in USD, as of 23 Oct 2026. Our calculation, not the index provider's published figure.
United Kingdom — tracked companies
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| # | Ticker | Sector | Price (GBP) | % change (GBP) · close 23 Oct | Market Cap | Volume (1 day) ▼ | Turnover | Last 5 sessions |
|---|---|---|---|---|---|---|---|---|
| 1 | HSBA.L HSBC | Banking & Capital Markets | £13.52 | -1.1% | $309.2B | $650.4M | 0.21% | |
| 2 | RR.L Rolls-Royce | Aerospace | £11.64 | -7.6% | $128.1B | $625.0M | 0.49% | |
| 3 | BP.L BP | Hydrocarbon Energy | £6.39 | +4.3% | $131.9B | $572.5M | 0.43% | |
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Price and change in GBP: each day's close converted back from USD at the ECB reference rate the figures were converted with. Market cap, volume and turnover are in USD.
Data last updated Fri, 23 Oct 2026 21:54:14 GMT. FX: euro foreign exchange reference rates, European Central Bank (ECB), rebased to the US dollar by Infinity; changes are our calculation. For information only. GDP via the World Bank Open Data API.