Halma (HLMA.L) Seasonality
Recurring seasonal patterns for HLMA.L — the calendar windows where Halma 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.
HLMA.L seasonality at a glance
Over the last 10 years, HLMA.L's strongest seasonal window has been May 14 – Jun 13: it ended higher in 9 of 10 years (90% win rate) with an average return of +5.71% across a 30-day hold. On the weak side, HLMA.L has historically declined between Mar 2 – Mar 12, falling in 8 of 10 years (average -1.92%).
In total, our analysis finds 552 recurring seasonal windows for Halma — 470 bullish and 82 bearish. The next high-win-rate window, Oct 9 – Oct 19, opens in 74 days. These figures describe historical behaviour only — not a forecast.
HLMA.L'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 3d ago | Jul 14 – Jul 24 | 10d | +1.27% | 80% | +0.84% |
| Completedended 4d ago | Jul 13 – Jul 23 | 10d | +1.16% | 80% | +1.56% |
| Upcomingin 74d | Oct 9 – Oct 19 | 10d | -1.48% | 80% | — |
| Upcomingin 77d | Oct 12 – Oct 22 | 10d | -1.06% | 80% | — |
| Upcomingin 78d | Oct 13 – Nov 12 | 30d | +3.31% | 80% | — |
| Upcomingin 80d | Oct 15 – Nov 4 | 20d | +2.19% | 80% | — |
| Upcomingin 81d | Oct 16 – Nov 5 | 20d | +1.91% | 90% | — |
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 HLMA.L seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
HLMA.L seasonality FAQ
What has historically been the best month to buy HLMA.L stock?
Based on the last 10 years of price data, HLMA.L's strongest seasonal window starts in May: May 14 to Jun 13, which ended higher in 9 of 10 years (90% win rate) with an average return of +5.71%. Past seasonal patterns do not guarantee future performance.
What is HLMA.L's strongest seasonal pattern?
HLMA.L's highest-win-rate pattern in our data is the May 14 – Jun 13 window (30-day hold): up in 9 of the last 10 years with an average move of +5.71%.
When has HLMA.L historically performed worst?
HLMA.L's weakest recurring window has been Mar 2 to Mar 12, declining in 8 of 10 years with an average return of -1.92%.
How reliable are HLMA.L's seasonal patterns?
Each HLMA.L pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. HLMA.L currently shows 552 recurring windows (470 bullish, 82 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is HLMA.L stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Halma's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where HLMA.L 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.