hft — Market Microstructure Practice Questions

46 free Market Microstructure questions on hft: 20 easy, 18 medium, and 8 hard, every one exam-realistic and fully explained once you sign in. This is the fastest way to turn hft from a weakness into a scoring area — drill it in 10-question reps with immediate feedback.

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1. A trader places a large sell order for 50,000 shares at $50.01 only to cancel it immediately after buying 10,0
2. A high-frequency trading firm detects a price change on the NYSE and executes a trade on BATS $50 microseconds
3. An HFT firm's co-located server receives a direct data feed… — What is the primary risk this latency gap creat
4. A high-frequency trader places a buy order for 10,000 shares… — Which prohibited practice does this scenario d
5. A high-frequency trader (HFT) notices that the price of a stock has just risen on the New York Stock Exchange
6. How does the algorithm's reaction contribute to a potential flash crash?
7. A trader wanting to buy 10,000 shares cheaply places a 50,000-share sell order at $50.01, causing other partic
8. As the price of the underlying stock begins to fall rapidly, what is the delta-hedging response required of th
9. A trader wants to buy 5,000 shares cheaply. They place a lar… — What pathology is this?
10. Options market makers are net short gamma on a stock. If the stock price begins to fall rapidly, what is the e
11. An options market maker is 'short gamma'. If the underlying stock price begins to rise rapidly, what action mu
12. A trader places a large buy order at 50.05 while the market… — This is a classic example of which practice?
13. A high-frequency trader places 5,000-share sell orders at 50.10, 50.11, 50.12, and 50.13 to create an impressi
14. A trader places a large buy order at 45.50 when the market i… — What is this behavior called?
15. A High-Frequency Trading (HFT) firm uses microwave links to receive a price change from the NYSE and submits a
16. An HFT firm co-locates its servers at the NYSE data center to gain a 50-microsecond advantage in seeing price
17. Which venue are they likely using?
18. A high-frequency trader wants to buy 10,000 shares of XYZ at a low price. He places a 50,000-share sell order
19. If the HFT firm buys at Venue B at t=1ms, who is the participant suffering the loss?
20. If they successfully buy 10,000 shares on BATS before the quote updates and immediately sell after the BATS mi
21. A high-frequency trader detects a large buy order on the NYS… — Which microstructure pathology is this trader
22. The firm executes against Venue B and immediately sells on Venue A. If the firm's round-trip connectivity late
23. A trader observes the following order book for 'Zeta': Bid: 100 @ 10.00, 200 @9.95 Ask: 100 @ 10.05, 300 @10.1
24. A trader places a large buy order at $50.05 and simultaneously places several smaller sell orders at $50.10
25. Which microstructure phenomenon best explains why prices collapse so much further than fundamental news would
26. Approximately how long does the SIP-informed slower router remain exposed to the stale quote, and what trade d
27. What is the maximum time window during which the market maker on B has not yet received the signal to update b
28. An ETF's intraday indicative value (iNAV) is calculated by t… — Which participants exploit this deviation and
29. An authorized participant (AP) sees an ETF trading at 100.20 while the underlying basket of stocks has a NAV o
30. What is the stale-quote window during which the HFT can trade against the slow participant's quotes, and what