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Normal vs. Lognormal Risk Factors

Most risk factors used by Everysk are lognormal. The invariant property for these risk factors are their compounded returns and therefore when they are used in stress tests, the magnitude of the shock is a percent move.

For example: If you shock SP500 by -1%, it will represent an instantaneous move from current level to a new level that is 1% lower.

Conversely, certain risk factors (rates/spreads) used by Everysk are normal and a shock on them is represented by an absolute shift in the rate/spread:

Shock Magnitude Current level New level
SPX -1% 2821 2792
Libor 3M -1% 1.77 0.77

The following list outlines all the risk factors in Everysk that are assumed normal:

Everysk Symbol Description
IND:LIBOR1M London Interbank Offered Rate - 1month
IND:LIBOR3M London Interbank Offered Rate - 3 months
IND:LIBOR6M London Interbank Offered Rate - 6 months
IND:LIBOR12M London Interbank Offered Rate - 12 months
IND:CMTY1MO Constant Maturity Treasury Rate - 1 month
IND:CMTY1YR Constant Maturity Treasury Rate - 1 year
IND:CMTY5YR Constant Maturity Treasury Rate - 5 years
IND:CMTY10YR Constant Maturity Treasury Rate - 10 years
IND:CMTY30YYR Constant Maturity Treasury Rate - 30 years
IND:BAMLAAA BofA Merrill Lynch US Corporate AAA Option-Adjusted Spread
IND:BAMLAA BofA Merrill Lynch US Corporate AA Option-Adjusted Spread
IND:BAMLBBB BofA Merrill Lynch US Corporate BBB Option-Adjusted Spread
IND:BAMLBB BofA Merrill Lynch US Corporate BB Option-Adjusted Spread
IND:BAMLB BofA Merrill Lynch US Corporate B Option-Adjusted Spread
IND:BAMLCCC BofA Merrill Lynch US Corporate CCC Option-Adjusted Spread
IND:BAMLEMEA BofA Merrill Lynch US Corporate EMEA Option-Adjusted Spread
IND:BAMLLATAM BofA Merrill Lynch US Corporate LATAM Option-Adjusted Spread
IND:BAMLAPAC BofA Merrill Lynch US Corporate APAC Option-Adjusted Spread
IND:COMMCDX Municipal CDS Index