QIS Research interview at BB – what to expect?

Hey guys,

I’ve got an interview coming up for a Quantitative Investment Strategy Research role at a bulge bracket. Never interviewed for QIS before, so trying to get a sense of what they usually focus on.

Should I expect mostly quant/technical stuff (probability, stats, greeks, coding, portfolio theory) or more markets/strategy questions (macro themes, systematic indices, client solutions)? Also curious how the “fit” questions come in compared to trading/structuring roles.

Since I don’t have unlimited prep time – what type of math/stats should I prioritize? For example: conditional probability, Bayes, expectations/variance, distributions, CLT, regression basics… Any specific question types I should be ready for and any resources?

Anyone gone through this at BBs (or even SocGen/BNP/Barclays type shops)? What kind of prep would you recommend?

Appreciate any insights.