3I Group PLC (LSE:III) — Market Cap & Net Worth
Market Cap & Net Worth: 3I Group PLC (III)
3I Group PLC (LSE:III) has a market capitalization of $319.76 Million (GBX2.63 Trillion) as of September 19, 2026. Listed on the LSE stock exchange, this UK-based company holds position #14615 globally and #73 in its home market, demonstrating a 1.22% increase in market value over the past year.
Market capitalization, also known as net worth in stock markets, is calculated by multiplying 3I Group PLC's stock price GBX2664.00 by its total outstanding shares 986522351 (986.52 Million). Also see 3I Group PLC total assets for a full breakdown of the balance sheet.
3I Group PLC Market Cap History: 2015 to 2026
3I Group PLC's market capitalization history from 2015 to 2026. Data shows growth from $42.62 Million to $319.76 Million (20.44% CAGR). Also see III cash flow conversion for how efficiently the company converts equity into cash flow.
Index Memberships
3I Group PLC is a constituent of 5 market indices:
| Index | Total Market Cap | Weight (%) | Rank by Market Cap |
|---|---|---|---|
|
FTSE All-Share
FTAS
|
$64.30 Billion | 0.50% | #35 of 573 |
|
FTSE 350
FTLC
|
$64.21 Billion | 0.50% | #34 of 350 |
|
FTSE 100 Index (UK)
FTSE
|
$54.46 Billion | 0.59% | #29 of 100 |
|
STOXX Europe Mid 200 EUR Price
MCXP
|
$1.48 Trillion | 0.02% | #95 of 157 |
|
STOXX Europe Mid 200 EUR Net Return
MCXR
|
$1.48 Trillion | 0.02% | #95 of 157 |
Weight: 3I Group PLC's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.
3I Group PLC Market Cap to Earnings & Revenue Ratios Timeline
This chart shows how 3I Group PLC's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance. Check III stock price and chart for real-time trading data and today's change.
Latest Price to Sales (P/S) Ratio
0.07x
3I Group PLC's market cap is 0.07 times its annual revenue
Latest Price to Earnings (P/E) Ratio
0.08x
3I Group PLC's market cap is 0.08 times its annual earnings
What These Ratios Tell Investors:
- Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
- Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
- Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
- Industry comparison provides context for whether the company is valued higher or lower than peers.
| Year | Market Cap (USD) | Revenue (USD) | Net Income (USD) | P/S Ratio | P/E Ratio |
|---|---|---|---|---|---|
| 2016 | $65.01 Million | $186.00 Million | $817.00 Million | 0.35x | 0.08x |
| 2017 | $86.92 Million | $388.00 Million | $1.62 Billion | 0.22x | 0.05x |
| 2018 | $76.70 Million | $398.00 Million | $1.46 Billion | 0.19x | 0.05x |
| 2019 | $112.84 Million | $1.36 Billion | $1.24 Billion | 0.08x | 0.09x |
| 2020 | $123.39 Million | $176.00 Million | $214.00 Million | 0.70x | 0.58x |
| 2021 | $159.16 Million | $238.00 Million | $1.85 Billion | 0.67x | 0.09x |
| 2022 | $153.66 Million | $714.00 Million | $4.01 Billion | 0.22x | 0.04x |
| 2023 | $284.98 Million | $606.00 Million | $4.57 Billion | 0.47x | 0.06x |
| 2024 | $427.79 Million | $3.98 Billion | $3.84 Billion | 0.11x | 0.11x |
| 2025 | $391.66 Million | $5.27 Billion | $5.04 Billion | 0.07x | 0.08x |
Competitor Companies of III by Market Capitalization
Companies near 3I Group PLC in the global market cap rankings as of September 19, 2026. Review III tangible net assets ratio to assess the quality of the company's equity after excluding intangible assets.
Key companies related to 3I Group PLC by market ranking:
- BlackRock Inc (NYSE:BLK): Ranked #142 globally with a market cap of $166.07 Billion USD.
- Blackstone Group Inc (NYSE:BX): Ranked #281 globally with a market cap of $94.05 Billion USD.
- KKR & Co. Inc. (NYSE:KKR): Ranked #299 globally with a market cap of $88.70 Billion USD.
- Brookfield Corporation (TO:BN): Ranked #312 globally with a market cap of $85.27 Billion USD ( CA$117.88 Billion CAD).
| Rank | Company | Symbol | Market Cap | Price |
|---|---|---|---|---|
| #142 | BlackRock Inc | NYSE:BLK | $166.07 Billion | $1069.78 |
| #281 | Blackstone Group Inc | NYSE:BX | $94.05 Billion | $124.96 |
| #299 | KKR & Co. Inc. | NYSE:KKR | $88.70 Billion | $98.81 |
| #312 | Brookfield Corporation | TO:BN | $85.27 Billion | CA$52.52 |
3I Group PLC Historical Marketcap From 2015 to 2026
Between 2015 and today, 3I Group PLC's market cap moved from $42.62 Million to $ 319.76 Million, with a yearly change of 20.44%.
| Year | Market Cap | Change (%) |
|---|---|---|
| 2026 | GBX319.76 Million | -18.36% |
| 2025 | GBX391.66 Million | -8.45% |
| 2024 | GBX427.79 Million | +50.11% |
| 2023 | GBX284.98 Million | +85.46% |
| 2022 | GBX153.66 Million | -3.46% |
| 2021 | GBX159.16 Million | +28.99% |
| 2020 | GBX123.39 Million | +9.36% |
| 2019 | GBX112.84 Million | +47.12% |
| 2018 | GBX76.70 Million | -11.76% |
| 2017 | GBX86.92 Million | +33.70% |
| 2016 | GBX65.01 Million | +52.54% |
| 2015 | GBX42.62 Million | -- |
End of Day Market Cap According to Different Sources
On Sep 19th, 2026 the market cap of 3I Group PLC was reported to be:
| Source | Market Cap |
|---|---|
| Yahoo Finance | $319.76 Million USD |
| MoneyControl | $319.76 Million USD |
| MarketWatch | $319.76 Million USD |
| marketcap.company | $319.76 Million USD |
| Reuters | $319.76 Million USD |
Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.
About 3I Group PLC
3i Group plc is a private equity firm specializing in mature companies, growth capital, middle markets, infrastructure, and management leveraged buyouts and buy-ins. The firm also provides infrastructure financing and debt management. For debt management, it invests in senior and mezzanine corporate debt in typically large and private companies in United Kingdom, Europe, Asia, and North America. … Read more