Costain Group PLC Market Cap ($7.98 Million)
Market Cap & Net Worth: Costain Group PLC (COST)
Costain Group PLC market cap. Costain Group PLC (LSE:COST) has a market capitalization of $7.98 Million (GBX65.60 Billion) as of November 7, 2026. Listed on the LSE stock exchange, this UK-based company holds position #27477 globally and #391 in its home market, demonstrating a -3.85% decrease in market value over the past year.
Market capitalization, also known as net worth in stock markets, is calculated by multiplying Costain Group PLC's stock price GBX249.50 by its total outstanding shares 262916034 (262.92 Million). Also see COST operating cash flow for how efficiently the company converts equity into cash flow.
Costain Group PLC Market Cap History (2015–2026)
Costain Group PLC market cap history from 2015 to 2026. Data shows change from $10.08 Million to $7.98 Million (-2.29% CAGR). Check today's stock price for Costain Group PLC for real-time trading data and today's change.
Index Memberships
Costain Group PLC is a constituent of 1 market index:
| Index | Total Market Cap | Weight (%) | Rank by Market Cap |
|---|---|---|---|
|
FTSE All-Share
FTAS
|
$68.17 Billion | 0.01% | #290 of 573 |
Weight: Costain Group PLC's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.
Costain Group PLC Market Cap to Earnings & Revenue Ratios Timeline
This chart shows how Costain 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. Explore COST net asset momentum to track how rapidly the company is growing its equity base year over year.
Latest Price to Sales (P/S) Ratio
0.00x
Costain Group PLC's market cap is 0.00 times its annual revenue
Latest Price to Earnings (P/E) Ratio
0.14x
Costain Group PLC's market cap is 0.14 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 | $9.89 Million | $1.57 Billion | $26.40 Million | 0.01x | 0.37x |
| 2017 | $13.47 Million | $1.68 Billion | $32.60 Million | 0.01x | 0.41x |
| 2018 | $9.38 Million | $1.46 Billion | $32.80 Million | 0.01x | 0.29x |
| 2019 | $4.99 Million | $1.16 Billion | -$2.90 Million | 0.00x | N/A |
| 2020 | $1.85 Million | $978.40 Million | -$78.00 Million | 0.00x | N/A |
| 2021 | $1.67 Million | $1.14 Billion | -$5.80 Million | 0.00x | N/A |
| 2022 | $1.23 Million | $1.42 Billion | $25.90 Million | 0.00x | 0.05x |
| 2023 | $2.00 Million | $1.33 Billion | $22.10 Million | 0.00x | 0.09x |
| 2024 | $3.39 Million | $1.25 Billion | $30.60 Million | 0.00x | 0.11x |
| 2025 | $5.11 Million | $1.05 Billion | $37.30 Million | 0.00x | 0.14x |
Competitor Companies of COST by Market Capitalization
Companies near Costain Group PLC in the global market cap rankings as of November 7, 2026. Also see how large is Costain Group PLC's balance sheet for a full breakdown of the balance sheet.
Key companies related to Costain Group PLC by market ranking:
- Quanta Services Inc (NYSE:PWR): Ranked #363 globally with a market cap of $76.53 Billion USD.
- Vinci S.A. (PA:DG): Ranked #396 globally with a market cap of $71.27 Billion USD ( €60.96 Billion EUR).
- Larsen & Toubro Limited (NSE:LT): Ranked #451 globally with a market cap of $60.25 Billion USD ( Rs5.57 Trillion INR).
- Larsen & Toubro Limited (IL:LTOD): Ranked #457 globally with a market cap of $59.24 Billion USD.
| Rank | Company | Symbol | Market Cap | Price |
|---|---|---|---|---|
| #363 | Quanta Services Inc | NYSE:PWR | $76.53 Billion | $509.06 |
| #396 | Vinci S.A. | PA:DG | $71.27 Billion | €112.95 |
| #451 | Larsen & Toubro Limited | NSE:LT | $60.25 Billion | Rs4050.00 |
| #457 | Larsen & Toubro Limited | IL:LTOD | $59.24 Billion | $42.15 |
Market Capitalization of Costain Group PLC (2015–2026)
Market capitalization of Costain Group PLC from 2015 to today. Between 2015 and today, Costain Group PLC's market cap moved from $10.08 Million to $ 7.98 Million, with a yearly change of -2.29%.
| Year | Market Cap | Change (%) |
|---|---|---|
| 2026 | GBX7.98 Million | +56.33% |
| 2025 | GBX5.11 Million | +50.57% |
| 2024 | GBX3.39 Million | +69.69% |
| 2023 | GBX2.00 Million | +62.13% |
| 2022 | GBX1.23 Million | -26.26% |
| 2021 | GBX1.67 Million | -9.80% |
| 2020 | GBX1.85 Million | -62.86% |
| 2019 | GBX4.99 Million | -46.80% |
| 2018 | GBX9.38 Million | -30.35% |
| 2017 | GBX13.47 Million | +36.18% |
| 2016 | GBX9.89 Million | -1.89% |
| 2015 | GBX10.08 Million | -- |
End of Day Market Cap According to Different Sources
On Nov 6th, 2026 the market cap of Costain Group PLC was reported to be:
| Source | Market Cap |
|---|---|
| Yahoo Finance | $7.98 Million USD |
| MoneyControl | $7.98 Million USD |
| MarketWatch | $7.98 Million USD |
| marketcap.company | $7.98 Million USD |
| Reuters | $7.98 Million USD |
Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.
About Costain Group PLC
Costain Group PLC provides infrastructure solutions for the transportation, energy, water, and defense sectors in the United Kingdom. The company operates in two segments, Transportation and Natural Resources. It operates in the road, rail, and integrated transport markets, as well as in the water, energy, defense, and nuclear energy markets. The company also provides engineering, construction, m… Read more