Rotation

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Rotation

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 ?
The experimental site has eight plots managed under a NT system with two crop rotations: 2 years of corn-soybean and 4 years of corn-soybean-winter wheat-oat.
With regard to protein content, crop rotation of amaranth after yard long bean and amaranth after winged bean, showed significantly higher amounts of protein compared to control but there was no significant difference when compared with the crop rotation of amaranth after bush bean.
Amongst crop rotations; the R-L rotation demonstrated higher ALP activities (158.50 and 160.93 [micro]g PNP released /g soil/hr in rabi and kharif) compared to R-M and R-W cropping system.
The results showed that under all crop rotations the active erosion segments had significantly (P [less than or equal to] 0.05) lower soil pH compared with other segments.
A positive effect of crop rotation on soil microbiota is observed in the change of the population of agronomically valuable group of microorganisms, such as the cellulose-digesting microorganisms.
Crop rotation results in increased yields, although scientists are not sure exactly why.
Inorganic P fractions were generally greater in the topsoil (0-0.1 m) of the direct drill treatment than the conventional tillage treatment (P < 0.05), irrespective of crop rotations. Tillage and crop rotation had little effect on resin-Pi and NaOH-Pi fractions in soil below 0.1 m.
Crop rotations that include nitrogen fixing legumes such as alfalfa and soybean can add nitrogen to the soil for the growth of subsequent crops (Figure 12-3).
arvensis PGR over the crop rotations was described by semivariograms.
In that area, one farm has relied on crop rotations and native soil fertility for plant nutrients ever since it was first plowed in 1909.
Five years after replacing long-term rice monoculture of three rice crops per year (RRR) with rice upland crop rotations (RUR and RUU) or continuous cultivation of upland crops (UUU), effective changes were observed in total soil carbon stocks among cropping systems (Table 5) and in SOC concentrations and stocks among cropping systems for each soil depth (Figs 1, 2).
The examinations were carried out in two crop rotations under non-irrigated conditions with average crop protection in the control and the N150+PK fertilizer treatments.