overmargin

noun

1. The amount by which something is bigger, stronger, or with greater capacity than the absolute minimum.

   “Breastbeams—wood, cast steel, angles and channels—are carefully designed, with a big overmargin of strength.”

   “Premiers stand up because they are correctly designed and made with an overmargin of safety.”

   “From this result, M-G-M type can allow link loading of about 90%, which may be too large ordinarily, resulting in provision of an overmargin for traffic handling capacity.”

2. The upper rim or border of something.

   “The processes of sabkhaization imply an overmargin shallow biogenic marine carbonate sedimentation mixed with distal alluvial fan deposition followed by solution redeposition of the carbonate to sulfate and dolomite;”

verb

1. To invest too much on margin, increasing risk and limiting operating capital.

   “Algorithms in current use differ in their ability to select a matching that does not overmargin a complicated position.”

   “Finally, exchanges need to be wary of adverse selection — positions that are undermargined would be heavily used while those that are overmargined would be less popular.”

   “Bulging with overconfidence, they load up their accounts and way overmargin themselves.”