Flow Traders Test

I went through the entire process. The first round is fill-in-the-blank math with the last 15 questions being multiple choice. Optiver this year was 80 questions 8 minutes and all multiple choice. Then you have an interview with recruiting and HR, which leads into a technical phone interview with a trader, and the final round case study. Considering there was zero things online to help me prepare for the case study in the way they tested it, I'm not going to give out any information on that, but I will say that for the technical phone interviews they reuse questions all from glass door.

The final round is an ETF case study so prepare by knowing the ins and outs of ETF arbitrage. Example ETF A is 50% stock X, and ETF B is 25% stock X, hedge ETF A in terms of ETF B as well as stock X. To hedge in terms of stock X, you could buy 1 share of ETF and short 1/2 of stock X to be delta neutral. In terms of hedging A with ETF B, you could be long 1 share ETF A and short 2 shares of ETF B. That kind of stuff but on a whole nother level. This is what really threw me off though - they mess with you the entire time to get you off your game. If it was a basic case study I would've been good, but the entire time they would say things are wrong that are actually correct, they would say your mic/video cut out when it actually didn't just to see how you perform under pressure. The case study is easy but be aware of them messing with your psychology. I didn't do well on the case study because of how much second-guessing I did. For me it was second nature to agree with the interviewers when they said things were wrong and I went down a rabbit hole of saying... wait  a second dude I was right the entire time and I was just trying to prove the way you got it which wasn't actually possible - they'd just say yep you were right the first time.