I have shares that have a paper loss now, I have other shares that i have already sold at a capital gain. I am considering selling these shares in order to realise a loss for tax reasons i know that this is only valid provided you do not buy back the shares before 28days has passed. However is it possible to buy an equivalent number of new shares and then sell the original shares at a loss in case the shares rebound during the 28day period. Is there any rule regarding this