First open a cable daily - look at Oct 10th - then figure what happened that date.
(I’ll make it a little easier Brexit News for Thursday 10 October | BrexitCentral)
So how come price thus reacted?
Prior to this there seemed to be a stalemate, but yet there were hints - this new PM had a reputation of rolling up his sleeves (not metaphorically) he can get things done - no pushover by either DUP (previously causing the stalemate) or by many of the other players including the ERG, the Brexit Party or dissenters within the Conservatives (whom he promptly sacked)
Check again the daily to see how price reacted to this sense of getting a deal with the EU in the lead up to Oct 10th.
Then the deal was done, it was in the bag and it had a majority in Westminster - that is until it stalled.
Check again the daily - the flag - that’s the stall.
So how come price didn’t go back down when the Boris deal didn’t get through and instead an election was called?
Because the market expects a Tory win, and then the deal gets through - the flag does what it’s supposed to do.