fusey - you cannot compare it on a volume basis as ekt's sp is 14p'ish and ind's is over 300p so on a value basis 20k ind shares equates to about 430k ekt shares and if you tried selling that it would definitely move the price ...
btw ... i doubt ekt are about to buy back shares as you assert and, even if they did, it would reduce liquidity even further due to lose shares being taken out of circulation ... look at nar - tbey have been buying back shares for years and they have become more and more illiquid ...