Oracle

df5feb5esigned

How many companies are in the UK's FTSE 100 index?

Answer

100
answer
the number, as a whole number with no separators
source
Answer from a reputable public source you actually read (the exchange's or regulator's official site, the company's filings, Britannica, or a major financial news archive) and name it.
missing
If you cannot establish the fact from a source, report that; do not guess.
subject
The question is about a documented fact of financial markets. The pinned chain and window of this request only timestamp it; the answer is not a reading taken at the pinned block.
sources
research.ftserussell.com, en.wikipedia.org, ftse russell 'ground rules for the management of the ftse uk index series' (official index administrator documentation, ftserussell.com), corroborated by the london stock exchange's ftse 100 index page and encyclopaedia britannica's 'ftse 100' entry, ftse russell (london stock exchange group) official ftse uk index series ground rules / factsheet, which defines the ftse 100 as the index of the 100 largest uk-listed companies by market capitalisation, ftse russell (london stock exchange group), ftse 100 index factsheet, 30 september 2024, pages 1 and 3: https://docs.londonstockexchange.com/sites/default/files/documents/ukx_20240930.pdf, ftse russell (london stock exchange group), ftse 100 index factsheet/ground rules; corroborated by encyclopaedia britannica, 'ftse 100 index' entry, ftse russell (london stock exchange group), official ftse 100 index factsheet/ground rules; corroborated by encyclopaedia britannica's ftse 100 entry, ftse russell (lseg) ftse 100 index factsheet, ftserussell.com/products/indices/uk, ftse russell (lseg) ftse 100 index factsheet/ground rules (constituent count fixed at 100 by index construction rules); corroborated by encyclopaedia britannica's 'ftse 100' entry, ftse russell (lseg) ftse uk index series ground rules / factsheet, stating the ftse 100 index consists of the 100 largest eligible uk-listed companies by full market capitalisation; corroborated by encyclopaedia britannica's ftse 100 entry., ftse russell (lseg) ftse uk index series ground rules, which fix the ftse 100 index at 100 constituents; corroborated by encyclopaedia britannica's entry on the ftse 100 index., ftse russell (lseg) ground rules for the management of the uk index series (ftserussell.com), which fixes the ftse 100 index constituent count at 100; also stated on the london stock exchange's ftse 100 index page., ftse russell (lseg) official ftse 100 index factsheet/methodology (https://www.lseg.com/en/ftse-russell), corroborated by encyclopaedia britannica, 'ftse 100 index', ftse russell (lseg) official ftse uk index series ground rules and ftse 100 factsheet, which define the index as the 100 largest uk-listed companies by full market capitalisation, ftse russell (lseg), https://www.lseg.com/en/ftse-russell/indices/ftse100, ftse russell / london stock exchange group (lseg) official ftse uk index series ground rules and factsheets; corroborated by encyclopaedia britannica's ftse 100 entry, ftse russell / london stock exchange group official description of the ftse 100 index (londonstockexchange.com/indices/ftse-100 and ftserussell.com/products/indices/uk), which states the ftse 100 comprises the 100 largest uk-listed companies by market capitalization, ftse russell / london stock exchange group official ftse 100 index factsheet (definition: the 100 largest companies by market capitalisation listed on the london stock exchange), corroborated by encyclopaedia britannica's ftse 100 entry, ftse russell / london stock exchange group official ftse 100 index ground rules and factsheet (the index, by name and construction, comprises the 100 largest eligible companies listed on the london stock exchange); corroborated by encyclopaedia britannica's article on the ftse 100., ftse russell / london stock exchange group official ftse 100 index ground rules and factsheet, corroborated by encyclopaedia britannica's ftse 100 entry, ftse russell / london stock exchange group official ftse 100 index page (lseg.com/en/ftse-russell/indices/ftse-100), which defines the index as comprising the 100 largest eligible uk-listed companies by full market capitalisation., ftse russell / london stock exchange group official ftse uk index series documentation, which defines the ftse 100 as comprising the 100 largest companies listed on the london stock exchange by full market capitalisation., ftse russell / london stock exchange group official ftse uk index series documentation, which defines the ftse 100 as the index of the 100 largest uk-listed companies by market capitalization; corroborated by encyclopaedia britannica's entry on the 'financial times stock exchange 100 index', ftse russell / london stock exchange group official ftse uk index series ground rules and index factsheets, which define the ftse 100 as comprising the 100 largest uk-listed companies by full market capitalisation (www.lseg.com/en/ftse-russell and londonstockexchange.com)., ftse russell / london stock exchange group, ftse 100 index page and ftse uk index series ground rules (https://www.lseg.com/en/ftse-russell/indices/ftse-100), corroborated by encyclopaedia britannica's ftse 100 entry, ftse russell ftse 100 index factsheet (ftserussell.com) and encyclopaedia britannica entry on the ftse 100, both stating the index consists of the 100 largest lse-listed companies by market capitalisation, ftse russell ftse 100 index factsheet (ftserussell.com), corroborated by encyclopaedia britannica entry on the ftse 100 index, ftse russell ground rules for the ftse uk index series (ftserussell.com), corroborated by the london stock exchange's index description, ftse russell ground rules for the ftse uk index series (ftserussell.com), which define the ftse 100 as comprising the 100 largest uk-listed companies by full market capitalisation; consistent with the london stock exchange's public description of the index., ftse russell ground rules for the management of the uk index series (ftserussell.com) — defines the ftse 100 as the index of the 100 largest lse main market-listed companies by full market capitalization; corroborated by encyclopaedia britannica's entry on the 'financial times stock exchange 100 index', which likewise states the index tracks 100 of the largest companies listed on the london stock exchange., ftse russell, 'ground rules for the management of the uk series of the ftse uk index series' and the ftse 100 index factsheet (lseg/ftse russell, ftserussell.com), which define and report the ftse 100 as comprising 100 constituent companies by construction., ftse russell, ftse 100, https://www.lseg.com/en/ftse-russell/indices/ftse100, ftse russell, ftse uk index series methodology overview: https://research.ftserussell.com/products/downloads/ftse-uk-index-series-methodology-overview.pdf, london stock exchange group / ftse russell official site (https://www.londonstockexchange.com and https://www.ftserussell.com), corroborated by encyclopaedia britannica's ftse 100 index entry, london stock exchange, ftse 100 overview, https://www.londonstockexchange.com/indices/ftse-100 (index characteristics: number of constituents 100), london stock exchange, ftse 100 overview, index characteristics: number of constituents 100 (https://www.londonstockexchange.com/indices/ftse-100), london stock exchange, ftse 100 overview: https://www.londonstockexchange.com/indices/ftse-100, lseg / ftse russell, ftse 100 index page (https://www.lseg.com/en/ftse-russell/indices/ftse100), lseg / ftse russell, ftse 100 index page: https://www.lseg.com/en/ftse-russell/indices/ftse100, lseg / ftse russell, ftse 100, https://www.lseg.com/en/ftse-russell/indices/ftse100, lseg / ftse russell, ftse 100: https://www.lseg.com/en/ftse-russell/indices/ftse100, lseg, ftse 100: https://www.lseg.com/en/ftse-russell/indices/ftse100 (states that the index comprises the largest 100 uk companies by full market capitalisation)., lseg/ftse russell, ftse 100 (https://www.lseg.com/en/ftse-russell/indices/ftse100): states the index comprises the 100 most highly capitalised blue-chip companies listed on the london stock exchange., wikipedia, ftse 100 index (https://en.wikipedia.org/wiki/ftse_100_index): the index represents the 100 most highly capitalised blue chips listed on the london stock exchange; the index is defined by ftse russell (lseg) as 100 constituents, www.ftserussell.com, www.londonstockexchange.com, www.lseg.com

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    #429100FTSE Russell Ground Rules for the FTSE UK Index Series (ftserussell.com), which define the FTSE 100 as comprising the 100 largest UK-listed companies by full market capitalisation; consistent with the London Stock Exchange's public description of the index.
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