RLI Corp. (RLI) Seasonality

Recurring seasonal patterns for RLI — the calendar windows where RLI Corp. 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.

Patterns found
533
Upcoming this year
69
Bullish windows
393
Best win rate
100%

RLI seasonality at a glance

Over the last 10 years, RLI's strongest seasonal window has been Oct 28 – Nov 27: it ended higher in 10 of 10 years (100% win rate) with an average return of +7.58% across a 30-day hold. On the weak side, RLI has historically declined between Mar 30 – Apr 9, falling in 9 of 10 years (average -2.43%).

In total, our analysis finds 533 recurring seasonal windows for RLI Corp.393 bullish and 140 bearish. The next high-win-rate window, Sep 12 – Oct 2, opens tomorrow. These figures describe historical behaviour only — not a forecast.

RLI's upcoming & recent seasonal patterns

Holding period:10-day20-day30-day

Ordered by season — windows opening soon first, plus a couple of recently completed high-performers. Holding-period colors help you compare durations at a glance.

StatusSeasonal windowHoldAvg returnWin rateThis year
Completedended 8d agoAug 4 – Sep 330d+1.73%80%+3.88%
Completedended 9d agoAug 3 – Sep 230d+1.78%80%+3.65%
Active30d leftSep 11 – Oct 1130d-1.28%80%
UpcomingtomorrowSep 12 – Oct 220d-1.63%80%
Upcomingin 2dSep 13 – Oct 320d-1.30%80%
Upcomingin 30dOct 11 – Nov 1030d+5.49%80%
Upcomingin 31dOct 12 – Nov 1130d+5.47%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 RLI seasonality in full

See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.

RLI seasonality FAQ

What has historically been the best month to buy RLI stock?

Based on the last 10 years of price data, RLI's strongest seasonal window starts in October: Oct 28 to Nov 27, which ended higher in 10 of 10 years (100% win rate) with an average return of +7.58%. Past seasonal patterns do not guarantee future performance.

What is RLI's strongest seasonal pattern?

RLI's highest-win-rate pattern in our data is the Oct 28 – Nov 27 window (30-day hold): up in 10 of the last 10 years with an average move of +7.58%.

When has RLI historically performed worst?

RLI's weakest recurring window has been Mar 30 to Apr 9, declining in 9 of 10 years with an average return of -2.43%.

How reliable are RLI's seasonal patterns?

Each RLI pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. RLI currently shows 533 recurring windows (393 bullish, 140 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.

What is RLI stock seasonality?

Seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing RLI Corp.'s price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where RLI 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.

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