Dilution adjustment is a mechanism by which long-term shareholders are protected against the dilution impact of securities trading that relates to investors entering or exiting the fund.
This dilution impact of securities trading includes the following elements:
- The bid-offer spread of the underlying portfolio of investments
- Broker commission
- Any taxes, e.g. stamp tax
With dilution adjustment, subsequent to the existing daily Net Asset Value (NAV) calculation, the NAV is then adjusted to include this dilution impact. This adjustment, either up or down by a pre-determined amount, is commonly referred to as the ‘dilution adjustment’.
There are two types of dilution adjustment: ‘full’ and ‘partial’. With full dilution adjustment the price will move regardless of the size of the net flows, whereas with partial dilution adjustment the price is adjusted only if the net capital flows exceed a pre-determined threshold, which is aligned to when dilution is incurred.
We consider partial dilution adjustment the more appropriate option as the factor will be applied to the NAV only in line with overall shareholder activity in the fund, and only if the net capital flows exceed a pre-determined threshold that would make securities trading more likely.
The table below outlines the impact of swing pricing on both dealing and nondealing shareholders: