Costain Group (COST.L)
A UK-based infrastructure and engineering firm specializing in technology-led advisory and large-scale project delivery for essential national services.
What Costain Group does
Costain Group is a British infrastructure and engineering company that provides consulting, technology-led advisory, and complex program delivery services. The company focuses on the transportation, water, energy, and defense sectors across the United Kingdom.
Themes: infrastructure development, digital transformation of infrastructure, UK national infrastructure policy, sustainable infrastructure solutions
Fundamentals
- Price£2.13 as of 2026-08-03 close
- Market capn/a company fundamentals are not available for UK-listed companies in our data
- 1-year return+30.8% 2025-08-01 close £1.62 → 2026-08-03 close £2.13
- P/En/a company fundamentals are not available for UK-listed companies in our data
- Net marginn/a company fundamentals are not available for UK-listed companies in our data
- Gross marginn/a company fundamentals are not available for UK-listed companies in our data
- ROEn/a company fundamentals are not available for UK-listed companies in our data
- Debt / equityn/a company fundamentals are not available for UK-listed companies in our data
- Revenue growth (YoY)n/a company fundamentals are not available for UK-listed companies in our data
- Revenue CAGR (3y)n/a company fundamentals are not available for UK-listed companies in our data
- Betan/a we do not track a market benchmark for UK-listed companies
Dividend: company fundamentals are not available for UK-listed companies in our data.
How Costain Group looks technically
Costain Group (COST.L) is trading 21.5% above its 200-day average, the long-term trend line — a longer-term uptrend. Its 50-day average crossed above its 200-day average about 818 trading days ago — a "golden cross", a bullish long-term signal. There is no clear trend right now — the price is choppy (ADX, a 0–100 trend-strength gauge, is 11, below the 25 that marks a real trend). Momentum is neutral — its 14-day RSI (a 0–100 momentum gauge) is 53, neither overbought (above 70) nor oversold (below 30). MACD, a trend-momentum gauge, turned bearish about 6 trading days ago (its momentum flipped negative). It made a new 20-day high about 9 trading days ago. It is 3.6% below its 52-week high (its highest price of the past year). Trading volume is unusually light — only about 0% of its 30-day average.
Trend
| Distance from the 200-day | +21.5% | it is trading 21.5% above its 200-day average, the long-term trend line — a longer-term uptrend |
|---|---|---|
| 50-day moving average | £2.05 | its average price over the last 50 trading days — a short-term trend line — is £2.05 |
| 200-day moving average | £1.75 | its average price over the last 200 trading days — the long-term trend line — is £1.75 |
| Since the 50/200 cross | 818 sessions | its 50-day average crossed above its 200-day average about 818 trading days ago — a "golden cross", a bullish long-term signal |
| Trend strength (14-day ADX) | 11.3 | there is no clear trend right now — the price is choppy (ADX, a 0–100 trend-strength gauge, is 11, below the 25 that marks a real trend) |
Momentum
| 14-day RSI | 53.4 | momentum is neutral — its 14-day RSI (a 0–100 momentum gauge) is 53, neither overbought (above 70) nor oversold (below 30) |
|---|---|---|
| Since the MACD crossed zero | 6 sessions | MACD, a trend-momentum gauge, turned bearish about 6 trading days ago (its momentum flipped negative) |
Range
| 52-week high | £2.21 | its highest closing price over the past year (about 252 trading days) was £2.21 |
|---|---|---|
| From the 52-week high | -3.6% | it is 3.6% below its 52-week high (its highest price of the past year) |
| Above the 52-week low | +81.6% | it is 81.6% above its 52-week low (its lowest price of the past year) |
| Below the 52-week high | 3.6% | it is 3.6% below its highest point of the past year |
| Since a 20-day breakout | 9 sessions | it made a new 20-day high about 9 trading days ago |
| Since a 55-day breakout | 9 sessions | it made a new 55-day high about 9 trading days ago |
| All-time high | £4.65 | its highest closing price on record is £4.65 (set on 2017-05-02) |
| From the all-time high | -54.3% | it is 54.3% below its all-time high |
| All-time low | £0.2268 | its lowest closing price on record is £0.2268 (set on 2020-03-23) |
| Above the all-time low | +837.0% | it is 837.0% above its all-time low |
Volatility
| Band width vs its own 6 months | 14th percentile | day-to-day price swings are narrower than usual versus its own recent 6-month history (tighter than about 86% of it) |
|---|---|---|
| Bollinger bands (20-day, ±2σ) | £2.05 – £2.11 – £2.18 | most of its recent trading has stayed between about £2.05 and £2.18 — the "Bollinger bands", a range drawn two standard deviations either side of its 20-day average price, which widens when the stock gets more volatile and narrows when it settles |
Volume
| Volume vs its 30-day average | 0.00× | trading volume is unusually light — only about 0% of its 30-day average |
|---|
Screens: Trading above the 200-day moving average · trendless / choppy (low ADX) | Learn: moving average · golden cross · adx · rsi · macd · breakout · fifty two week high low · volume and relative volume
Based on daily closing prices as of 2026-08-03. Describes past price behavior only — informational, not financial advice.
Key risks (from latest filing)
["reliance on UK government infrastructure spending and procurement cycles","risks associated with fixed-price, long-term construction contracts","inflationary pressure on labor and material costs"]
Competitors & peers
- Balfour Beatty (BBY.L)
- Kier Group (KIE.L)
- Morgan Sindall Group (MGNS.L)
- Galliford Try (GFRD.L)
- WSP Global (WSP.TO)
AI-enriched competitor set. Linked names are companies covered by stocks-llm; other named peers are shown for reference only.
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Frequently asked questions
What does Costain Group (COST.L) do?
Costain Group is a British infrastructure and engineering company that provides consulting, technology-led advisory, and complex program delivery services. The company focuses on the transportation, water, energy, and defense sectors across the United Kingdom.
Who are Costain Group's (COST.L) competitors?
Notable peers of Costain Group (COST.L) include Balfour Beatty, Kier Group, Morgan Sindall Group, Galliford Try and WSP Global. This peer set is informational only — not financial advice.
Is Costain Group (COST.L) overbought or oversold right now?
Costain Group (COST.L) is currently neither overbought nor oversold — its 14-day RSI (a 0–100 momentum gauge) is 53, in the neutral middle (as of 2026-08-03). RSI describes recent price momentum, not a forecast — informational only, not financial advice.
Where does stocks-llm's data on COST.L come from?
Fundamentals and prices come from market data. All figures are delayed daily-close data shown with their as-of date — informational only, not financial advice.
Fundamentals: market data. Prices are delayed daily-close data.
Last updated 2026-08-03.
Informational only — NOT financial advice. All figures are delayed daily-close data from market data, shown with their as-of date.