BGM General Motors Corp. 7.375% Se

NYE

$9.34

General Motors Corp. 7.375% Se (BGM) 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 4

From October, on average

-10.23%

38 matching years

Any three months

-2.21%

1,962 starting points

Difference

-8.0 pts

worse 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 May 2003 to October 2026.

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.