I'm not a senior member but for its worth I think the confirmation of Brexit means a lot of lower gaps in charts are now in play IMO. I sold everything I owned after the news on Friday to stand back and let things settle. The fact the Dow closed close to its lows and bank shares in Europe got smashed might be enough to see a snowball effect get started IMO. Conversely if GPX nail a contract with the Chinese I still think this share will run. The problem is if the market turns cruddy then bad news like delays will be amplified downwards. At this point in time I don't think anyone truly knows what's going to happen with the wider markets.
