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An active asset management strategy that tactically overweighted and underweighted certain sectors, depending on expected performance. Sometimes called sector rotation.

Sector Rotation

An investment strategy in which a portfolio overweights or underweights certain sectors in accordance with expected performance. Sector rotation is a form of active investment management; the portfolio manager observes market trends and alters the composition of the portfolio in order to earn the highest possible return. Sector rotation is fairly high risk, as a portfolio's systematic overweighting and underweighting means that is not efficiently diversified. See also: Markowitz portfolio theory.
References in periodicals archive ?
GC-MS analysis identified the fatty acid, whereas, the optical rotation of methyl glucoside ([a]D = + 74.
Recording changes in optical rotation is another promising method to read stored information in a non-invasive manner because detection can be readily performed outside the photoactive spectral region, thereby reading without erasing the stored information.
Based on electron distributions, they predicted optical rotation for three classes of compounds: oxiranes, simple chiral molecules that are small and rigid; more complex cyclic esters; and linear molecules, specifically fluorohexane.
The new Princeton method, dubbed nuclear-spin optical rotation (NSOR), enlists the use of a laser beam to measure how the nuclear spins within a sample rotate about the polarization plane of a beam.

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