Steel Dynamics (STLD) Seasonality
Recurring seasonal patterns for STLD — the calendar windows where Steel Dynamics has historically tended to rise or fall, with the win rate (how often it repeated) and average return for each, based on the last 10 years of price history.
STLD seasonality at a glance
Over the last 10 years, STLD's strongest seasonal window has been Mar 22 – Apr 1: it ended higher in 10 of 10 years (100% win rate) with an average return of +5.37% across a 10-day hold. On the weak side, STLD has historically declined between Mar 2 – Mar 12, falling in 8 of 10 years (average -5.25%).
In total, our analysis finds 783 recurring seasonal windows for Steel Dynamics — 626 bullish and 157 bearish. The next high-win-rate window, Sep 17 – Oct 17, opens in 6 days. These figures describe historical behaviour only — not a forecast.
STLD's upcoming & recent seasonal patterns
Holding period:10-day20-day30-dayOrdered by season — windows opening soon first, plus a couple of recently completed high-performers. Holding-period colors help you compare durations at a glance.
| Status | Seasonal window | Hold | Avg return | Win rate | This year |
|---|---|---|---|---|---|
| Completedended 13d ago | Aug 19 – Aug 29 | 10d | +1.90% | 90% | +1.58% |
| Completedended 42d ago | Jul 21 – Jul 31 | 10d | +2.22% | 80% | +7.60% |
| Upcomingin 6d | Sep 17 – Oct 17 | 30d | +3.79% | 80% | — |
| Upcomingin 7d | Sep 18 – Oct 18 | 30d | +3.84% | 80% | — |
| Upcomingin 8d | Sep 19 – Oct 19 | 30d | +2.78% | 80% | — |
| Upcomingin 9d | Sep 20 – Oct 10 | 20d | +2.45% | 80% | — |
| Upcomingin 10d | Sep 21 – Oct 11 | 20d | +4.69% | 80% | — |
Win rate = how often the pattern repeated in the same direction. Average return = the mean move across all analysed years. Past performance does not guarantee future results.
Explore STLD seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
STLD seasonality FAQ
What has historically been the best month to buy STLD stock?
Based on the last 10 years of price data, STLD's strongest seasonal window starts in March: Mar 22 to Apr 1, which ended higher in 10 of 10 years (100% win rate) with an average return of +5.37%. Past seasonal patterns do not guarantee future performance.
What is STLD's strongest seasonal pattern?
STLD's highest-win-rate pattern in our data is the Mar 22 – Apr 1 window (10-day hold): up in 10 of the last 10 years with an average move of +5.37%.
When has STLD historically performed worst?
STLD's weakest recurring window has been Mar 2 to Mar 12, declining in 8 of 10 years with an average return of -5.25%.
How reliable are STLD's seasonal patterns?
Each STLD pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. STLD currently shows 783 recurring windows (626 bullish, 157 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is STLD stock seasonality?
Seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Steel Dynamics's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where STLD has repeatedly risen (bullish) or fallen (bearish). Each pattern is scored by its win rate and average return so you can judge how reliable and how strong it has been.
Seasonality is one input among many — it works best alongside your own research and risk management. Learn more in our guide to seasonal analysis and the tutorials.