How Faster Connections Affect Latency-Sensitive Trading Strategies
Summary
The document surveys strategies in which receiving market data or reaching an exchange sooner may affect execution. It describes latency arbitrage as a contest over speed, with examples including arbitrage across fragmented equity venues, triangular arbitrage, and racing for queue priority in first-in, first-out order books. Faster access may help capture an opportunity before competitors act, though the discussion does not provide a tested strategy or implementation details.
The answers also connect many latency-focused approaches to market making, where speed can help manage quotes and compete for liquidity-related returns. The evidence is qualified: one answer notes that fragmented-market opportunities may be limited in size, while the cited discussion of triangular arbitrage lacks confirmation from ultra-high-frequency academic data. The document also mentions flash trading and detecting other algorithms, but cautions that market rules and practices can restrict such approaches.
Key ideas
- Latency arbitrage depends on acting before competing traders can react to market information.
- Fragmented venues can create short-lived price differences that reward faster execution.
- Triangular arbitrage is another possible speed-sensitive strategy, though the document cites limited evidence at very high frequencies.
- Market making and queue priority are closely related to latency advantages.
- The practical value of these opportunities depends on market structure, rules, and the size of available returns.
Tags
Full text
# What strategy would benefit most from having the fastest connection to the exchange? # What strategy would benefit most from having the fastest connection to the exchange? Imagine that you have the fastest connection to the exchange (receive quotes 1 ms earlier than everyone else) for both stocks and derivatives. How would you benefit from this? Of course almost any strategy would work better on a faster connection, but I'm looking for strategies that: - will only work on the fastest connection (useless/doesn't work on an average connection) - are as simple as possible Links to certain strategies are appreciated. ## Answer by Ryogi (score 6) https://quant.stackexchange.com/a/2257 Jordan (@jordan.baucke) in his answer suggests that most latency arbitrages are actually market making strategies, as opposed to classical price arbitrage. While I generally agree, I can think of two exceptions: - Equity price arbitrage in fragmented markets (See the fragulator for more on this). In this environment, negative spreads can arise and the quickest can take a profit. This is certainly a possibility, but probably it is not sizable. - Triangular arbitrage. This is a classical example. It exists (see for example Fenn et al., for a coarse analysis at 1 sec resolution) and it might be profitable and sizable at much higher frequencies. At the 0.1 sec horizon, such opportunities are already much more frequent. Unfortunately, there are no academic studies use UHF data and can confirm this. ## Answer by Shane (score 3) https://quant.stackexchange.com/a/2252 You're specifically interested in latency arbitrage (see, for instance, this old WSJ article). This strategy is strictly about being faster than everyone else. You can imagine any number of instances when this would matter (see this discussion of popular algos). For instance, if you can detect another algorithm trading (this is known as a "sniffer"), and others also detect this, then you may be competing over tiny amounts returns in front-running these algos. Most orderbooks are first-in, first-out, so your position in the queue matters. Similarly, competing for returns in more traditional arbitrage across trading venues depends on speed: your faster connection between exchanges can mean the difference between earning the arbitrage return and not. ## Answer by jordan.baucke (score 2) https://quant.stackexchange.com/a/2255 - Market making (to collect a liquidity rebate)? - Flash trading (when the order is displayed to internal market participants prior to being distributed to the wider market)? *1 I think more generally strategies that implement pure latency arbitrage are related to transaction market making (providing liquidity within markets or securities) rather than price arbitrage (as they were more classically when you think of low latency market making.) Check out this webinare - some of the subjects include: - What role do data centers play in high-frequency trading? - Are proximity and co-location the most critical factors in shaving milliseconds for firms? 1 - Of course it's my understand that most electronic markets now don't allow flash trading?
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