The pricing strategies of UK wholesalers and manufacturers are highly variable, with some suppliers trying to keep prices stable and avoiding big changes, whereas others react to market conditions by making big changes. This means that many suppliers monitor reimbursement and market prices in great detail, changing or keeping their selling prices the same so as to maintain their market position. The graph also shows that some suppliers had stock for the full period, but other had it only in specific months.
Although this analysis looks at a generic product, parallel import products are just the same, with pricing being just as chaotic, but both sorts of product, generics and PIs are included in the current market competitor pricing information available in Wavedata Live at https://www.wavedata.co.uk/login/