CSTM
Constellium SE Basic Materials - Aluminum Investor Relations →
Constellium SE (CSTM) closed at $22.38 as of 2026-03-20, trading 43.2% above its 200-week moving average of $15.63. The stock is currently moving closer to the line, down from 57.8% last week. The 14-week RSI sits at 64, indicating neutral momentum.
Over the past 14 weeks, down-weeks have had more trading volume than up-weeks (0.64 buyers-vs-sellers ratio). That means when people are active, they're more often selling than buying. Sellers are still more in control than buyers.
Over the past 621 weeks of data, CSTM has crossed below its 200-week moving average 12 times. On average, these episodes lasted 26 weeks. Historically, investors who bought CSTM at the start of these episodes saw an average one-year return of +4.1%.
With a market cap of $3.1 billion, CSTM is a mid-cap stock. The company generates a free cash flow yield of 3.1%. Return on equity stands at 32.4%, indicating strong profitability. The stock trades at 3.2x book value.
The company has been aggressively buying back shares, reducing its share count by 6.2% over the past three years.
Over the past 12 years, a hypothetical investment of $100 in CSTM would have grown to $72, compared to $422 for the S&P 500. CSTM has returned -2.7% annualized vs 12.8% for the index, underperforming the broader market over this period.
In the past 12 months, corporate insiders have made 4 open-market purchases totaling $2,402,804. Multiple insiders purchased within a 30-day window — a cluster buy pattern that historically signals management confidence in the company's prospects.
Free cash flow has been volatile over the past several years, making the quality of earnings harder to assess.
Business Health
Annual financials — how the underlying business has performed over the past several years.
Cash Flow Free cash flow & net income ($M)
Revenue Annual revenue ($M) — business growth proxy
Total Debt Balance sheet debt ($M)
ROIC Return on invested capital (%)
FCF Yield Free cash flow / market cap (%) — Yartseva signal
Gross Margin Pricing power & competitive moat (%)
Shares Outstanding Buybacks vs dilution (millions)
Growth of $100: CSTM vs S&P 500
Monthly data normalized to $100 at start. Vertical dashed lines mark 200-week MA touches.
What Happens After CSTM Crosses Below the Line?
Across 12 historical episodes, buying CSTM when it crossed below its 200-week moving average produced an average return of +5.2% after 12 months (median -17.0%), compared to +11.5% for the S&P 500 over the same periods. 33% of those episodes were profitable after one year. After 24 months, the average return was +47.7% vs +34.5% for the index.
Each line shows $100 invested at the moment CSTM crossed below its 200-week MA. Bold blue = stock average. Gray dashed = S&P 500 average over same periods.
Historical Touches
CSTM has crossed below its 200-week MA 12 times with an average 1-year return of +4.1% after recovery.
| Crossed Below | Recovered | Weeks | Max Depth | 1-Year Return | Return Since Touch |
|---|---|---|---|---|---|
| Sep 2014 | Jan 2018 | 172 | 80.9% | -71.8% | +1.1% |
| Feb 2018 | Feb 2018 | 1 | 1.1% | -26.6% | +86.5% |
| Feb 2018 | Mar 2018 | 1 | 0.9% | -19.2% | +90.5% |
| Mar 2018 | Apr 2018 | 5 | 8.1% | -20.5% | +110.1% |
| Oct 2018 | Feb 2019 | 15 | 25.5% | +44.5% | +146.5% |
| Mar 2019 | Mar 2019 | 1 | 2.3% | +14.6% | +169.3% |
| Mar 2019 | Apr 2019 | 1 | 5.2% | -32.7% | +180.5% |
| May 2019 | Jun 2019 | 1 | 1.7% | +0.5% | +173.9% |
| Mar 2020 | Nov 2020 | 35 | 56.6% | +148.5% | +231.1% |
| Aug 2022 | Jan 2023 | 19 | 22.3% | +40.0% | +73.1% |
| Jul 2024 | Aug 2024 | 3 | 4.2% | -16.8% | +40.9% |
| Sep 2024 | Oct 2025 | 59 | 49.9% | -11.8% | +35.3% |
| Average | 26 | — | +4.1% | — |
Frequently Asked Questions
Is CSTM below its 200-week moving average?
No. Constellium SE (CSTM) is currently 43.2% above its 200-week moving average of $15.63. It would need to fall to $15.63 to cross below the line.
What is CSTM's 200-week moving average price?
Constellium SE's 200-week moving average is $15.63 as of 2026-03-20. This is the average weekly closing price over roughly the last 4 years, and it acts as a long-term trend line. When a stock drops below this level, it can signal that the price has fallen far enough from the long-term trend to attract value-oriented investors.
What happens when CSTM drops below its 200-week moving average?
CSTM has crossed below its 200-week moving average 12 times in our data. On average, buying at that moment produced a one-year return of +4.1%. These dips have historically been decent entry points. These episodes lasted 26 weeks on average.
Is CSTM a good value right now?
Here's what our data says about CSTM as of 2026-03-20: The stock is above its 200-week moving average, so it doesn't currently meet our primary signal. The 14-week RSI is 64. Free cash flow yield is 3.1%. Return on equity is 32.4%. Price-to-book is 3.2x. This is not a buy or sell recommendation — always do your own research.
How does CSTM compare to the S&P 500?
Over the past 12 years, $100 invested in CSTM would have grown to $72, compared to $422 for the S&P 500. That's -2.7% annualized vs 12.8% for the index. CSTM has underperformed the broader market over this period.
Not financial advice. This is an educational tool. Past performance does not guarantee future results. Do your own research before making investment decisions.
Data as of week of 2026-03-20