it is estimated (see choice "i"
of the summary, then "help" )
Short term: The change over 30 days is compared with the change over 60 or 90 days.
Long term: The change over 3 years is compared with the change over 1 year or 6 months.
The shares who performed less are at the end of the list, but those who make a recovery can be identified.
The changes are got from the closing prices.
Detailed but clear charts, allow you to use a smartphone: iPhone (tm), android, galaxy, or other.