The thresholds are in trading days: a move seen about every
month (21 trading days) or more often is normal, less often than monthly
but more than once a year unusual, once in 1 to 10 years rare, and rarer
than that very rare.
Usage
move_verdict(one_in_days, up)
Arguments
- one_in_days
A move this large happens about once in so many trading
days.
- up
TRUE for a rise, FALSE for a fall.
Value
A character string such as "rare fall", or NA.
Examples
golemstockindices:::move_verdict(c(12, 400, 5000), up = c(TRUE, FALSE, FALSE))
#> [1] "normal rise" "rare fall" "very rare fall"