And the winner is . . . 

In accidental commemoration of the latest UK cabinet reshuffle elevating a former Carlton TV flack to foreign secretary, last week’s chart quiz was about unsettling things happening internationally.

Well, sort of. Here are the answers.

Dead money, then a pop, then a vertiginous drop towards zero, all within four years? No prizes for guessing this is a Spac, but what a Spac! It’s the share price of Arrival, the Russia-founded, UK-based, Luxembourg-headquartered, Nasdaq-listed electric-van start-up that was once valued at $15bn and now very much isn’t.

This is Federal Reserve repo facility total utilisation. Most people got this right even though the data plot stopped at the end of Q3, which was either our attempt to make the question more challenging or because we pulled the data from the Office of Financial Research website without noticing it wasn’t current. No prizes either for guessing which is the right answer there.

That’ll be dollar/Indian rupee spot, of course. We accepted just “rupee” because obviously it’s not any of the other rupees.

Seven respondents scored 3/3. Of those, the first name out of the hat was Okhtay Ilghami of quant fund Quadrature Capital, who wins the FTAV exclusive T-shirt. Congratulations to him. Commiserations to the rest.

There will be another quiz (and possibly another UK foreign secretary) this Friday.