The takeaway
Borr Drilling Ltd shows a pronounced seasonal pattern over 8 years of data — strongest in December (+11.6%) and softest in April (+2.4%).
Right now
In July, the stock has fallen 63% of years, averaging −1.3%, roughly 3.5 pts behind the S&P 500.
The full picture
Borr Drilling Ltd's most dependable month has been December, higher in 7 of 8 years; April has been its least reliable, up just 14% of the time.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| 2019 | — | |||||||||||
| 2018 | — | — | — | — | — | — |
Month by month
The stock's clearest edge over the S&P 500 lands in December (+10.6 pts); it has trailed the market most in January (−7.6 pts).
“vs S&P” is Borr Drilling Ltd’s average for a month minus the S&P 500’s average for that same month — isolating Borr Drilling Ltd’s own seasonal edge from broad market drift.
Reality check
Over the last 5 years, December has closed higher 100% of the time versus 88% across the last 8 years — the pattern is strengthening.
Figures are the typical (median) December return and how often it rose — the last 5 years versus the last 8(the heatmap’s default window). This verdict stays anchored to that 8-year window even if you zoom the chart, so it never disagrees with the badges above.
In plain English
Strip the year back and a single month does the heavy lifting: December, up in 7 of 8 Decembers while the other eleven tend to blur together.
Its average (+11.6%) and median (+9.8%) land within a hair of each other — the tell of steady, year-after-year gains rather than one outlier doing the work. It is among its calmest months, too, its returns swinging least from year to year (a 15.9% spread), and even its worst December in 8 years lost only 14.9% — the gentlest downside anywhere on its calendar. Crucially, the gain is the stock's own rather than a rising tide's: December has cleared the S&P 500 by +10.6 points above the index. That consistency sets it apart from the field, where the average stock manages December only about 58% of the time.
Only July comes anywhere near it for reliability. On the other side of the ledger, April is the year's low point, though even there the stock has stayed positive on average (+2.4%), a sign every month leans up, and the edge isn't year-round — the stock has trailed the S&P 500 in January, September, and March. Its roughest month on record was a −74.8% March in 2020 — a reminder of how hard even a seasonal name can fall.
December has now closed higher 7 years running. If anything it has sharpened recently — the last five Decembers run ahead of the earlier years.
The takeaway is less about when to buy than what to expect: December aside, the stock's months offer little reliable tilt. With a short 8-year record and returns that swing hard year to year, the signal is best held loosely.
Short answers on the stock's best month (December), its worst (April), and whether it really trades seasonally.
Yes, to a pronounced degree. Since 2018 its best month (December, +11.6%) has run well ahead of its worst (April, +2.4%) — the heatmap above shows how steady that gap has been year to year.
December has been the strongest, averaging +11.6% and closing higher in 7 of 8 years since 2018.
It's the weakest month, but it has still averaged a small gain (+2.4%) — quiet rather than genuinely bad.
Explore
These names have the strongest July track records on record — a starting point for comparison.
Before you trade