Quote Stuffing
Candlefocus EditorQuote stuffing is a trading tactic used primarily by high-frequency traders (HFTs) that involves placing and canceling large numbers of orders within very short time frames. This tactic is used in order to gain a pricing advantage against the competition, as it causes them to lose time in processing these orders. Quote stuffing was blamed as a major factor in the 2010 “flash crash” that saw the Dow Jones Industrial Average (DJIA) drop by 1,000 points in a matter of minutes.
When quote stuffing occurs, it creates an artificially largevolume of buy and sell orders in a very short period of time. This often causes markets to become volatile and prices to move quickly and unpredictably. HFTs are typically more prepared to handle such volatility, and their orderbook is usually quicker to update. As such, HFTs are able to execute trades quicker and with a greater degree of accuracy, enabling them to take advantage of price movements before competitors have time to react.
The end goal of quote stuffing is to capitalize on tiny, fleeting price discrepancies that normal market makers and other traders may miss. It is also used to manipulate market conditions by increasing volatility to increase the opportunity for quick, profitable trades.
Although quote stuffing is generally illegal, it can be difficult to prove if a trader has deliberately attempted to manipulate prices. In addition, it has been argued that even if quote stuffing is illegal, it still allows some traders to achieve extremely high levels of success due to their advanced trading systems.
Opponents of quote stuffing argue that it provides an unfair tactical and pricing advantage to HFTs. Such tactics also have the potential to be abused and do harm to investment markets. For this reason, US regulators have implemented measures to try to limit the impact of quote stuffing and have taken steps to prosecute traders who engage in it.
Even though quote stuffing was initially blamed as the main cause of the 2010 “flash crash”, it is only one of the many factors that can cause market volatility and instability. Ultimately, it is important that markets remain fair and that all traders, regardless of their trading style, are held to the same standards.