Definition
Latency Arbitrage
Latency arbitrage is a strategy that profits from being faster than other participants to act on the same information, capturing price differences between venues or instruments before they realign.
A latency arbitrageur in India might exploit fleeting price gaps between a stock on the NSE and its future, or between correlated instruments, by reacting in microseconds via co-location and ultra-low-latency systems. The edge exists only for the fastest, so it is dominated by well-resourced HFT firms.
Latency arbitrage is controversial because it can be seen as a tax on slower investors and was central to the NSE co-location controversy. Exchanges and SEBI have responded with measures aimed at fairer data dissemination, but the fundamental race for speed persists wherever even tiny latency differences exist.
Related terms
- High-Frequency Trading (HFT)High-frequency trading is a subset of algorithmic trading characterised by extremely high order submission rates, very short holding periods and reliance on ultra-low-latency infrastructure to capture tiny, fleeting price discrepancies.
- Co-locationCo-location is the practice of placing a trading member's servers physically inside or immediately adjacent to the exchange's data centre so that orders reach the matching engine with the lowest possible latency.
- Low LatencyLow latency refers to minimising the time delay between a market event and a trading system's response, measured in microseconds or nanoseconds for the fastest participants.
- Tick-by-Tick Data FeedA tick-by-tick (TBT) data feed broadcasts every order book event, additions, modifications, cancellations and trades, in real time, giving the most detailed live view of market microstructure.
Plain-English explainer from The Dispatch Investors Encyclopedia. General information, not financial advice.