u/BestCaregiver6

pecifically, I have three core questions regarding the R&D cycle at HFT firms:

1. Idea Generation (Micro-Alpha): Retail trading relies heavily on basic indicators (moving averages, simple chart patterns). For HFTs operating at the nanosecond/microsecond scale, what does the ideation process actually look like? Are quants primarily mining Level 3 tick data for order book imbalances, latency arbitrage loops, or localized volatility anomalies, or is it more heavily driven by machine learning feature exploration?
2. High-Fidelity Backtesting: How do firms build simulators that don't suffer from look-ahead bias or unrealistic fills? How do you accurately model your exact mathematical position in the order queue, exchange network jitter, and wire-time latency when backtesting a strategy?
3. Sim-to-Live Validation: How do teams determine that a backtest is robust enough for a live market? What metrics or validation frameworks do you use to prove that your simulation perfectly mirrors production performance before scaling up risk, especially when accounting for your own strategy's market impact?

I would love to get any high-level insights, reading recommendations, or advice on what specific sub-fields of statistics/microstructure I should focus on during my Master's to prepare for this.

Thanks!

Hey everyone,

I’ll be starting my Master’s at UGent this September and I am aiming to arrive in mid-August. I’m currently navigating the notorious Ghent housing market and could really use some local perspective.

I’m currently torn between two routes:

1. Student Agencies (Upkot, Diggit, Xior): I know these are more expensive, but are they worth the premium for an international student just to have peace of mind and avoid scams?
2. Private Market (Immoweb / Facebook groups): I know this route is cheaper, but since I am applying from outside the EU, I absolutely cannot visit any property in person before August.

My main questions:

• Is it realistically possible to secure a legitimate place on Immoweb or Facebook from abroad without getting scammed? How do you verify a landlord?
• As a non-EU student, I know I need an address that allows for domicilie (city hall registration). Does this make it significantly harder to rent a private studio/apartment compared to going with an agency like Upkot?
• Should I just bite the bullet, pay the premium for Upkot/Diggit for the first year, and look for a cheaper private place once I am physically in the city?

Any tips, trusted platforms, or harsh realities would be massively appreciated. Thanks in advance!