SPR Spirit AeroSystems Holdings, Inc.

Spirit AeroSystems Holdings, Inc. (SPR) Seasonality

What this stock has historically done over the three months following this point in the calendar year, measured against every other three-month stretch on record.

The three months from October 13

From October, on average

+15.32%

99 matching years

Any three months

+7.44%

5,299 starting points

Difference

+7.9 pts

better than usual

Both lines start at zero on day 0, so the vertical gap reads directly as percentage points better or worse than a random three months. A seasonal line sitting on top of the baseline is a real answer: it says the calendar tells you nothing here. Price history from April 1998 to December 2025.

Between earnings releases

The same study run on the earnings cycle rather than the calendar: the average move from one report to the next, broken out by fiscal quarter, with the announcement gap and the run-up separated out.