Spoofing in Equilibrium

48 Pages Posted:

See all articles by Basil Williams

Basil Williams

New York University (NYU)

Andrzej Skrzypacz

Stanford University - Stanford Graduate School of Business

Date Written: December 3, 2020


We present a model of dynamic trading with exogenous and strategic cancellation of orders. We define spoofing as the strategic placing and canceling of orders in order to move prices and trade later in the opposite direction. We show that spoofing can occur in equilibrium. Consistent with regulator concerns, we show that spoofing slows price discovery, raises bid-ask spreads, and raises return volatility. A novel prediction is that the prevalence of equilibrium spoofing is single-peaked in the measure of informed traders, suggesting that spoofing should be more prevalent in markets of intermediate liquidity. We consider within-market and cross-market spoofing and discuss how regulators should allocate resources towards cross-market surveillance.

Keywords: market microstructure, manipulation, spoofing

JEL Classification: G10, G14, G28

Suggested Citation

Williams, Basil and Skrzypacz, Andrzej, Spoofing in Equilibrium (December 3, 2020). Available at SSRN: https://ssrn.com/abstract=

Basil Williams (Contact Author)

New York University (NYU) ( email )

19 W 4th Street
New York, NY 10003-711
United States

Andrzej Skrzypacz

Stanford University - Stanford Graduate School of Business ( email )

655 Knight Way
Stanford, CA 94305-5015
United States
650-736-0987 (Phone)
650-725-9932 (Fax)

Here is the Coronavirus
related research on SSRN

Paper statistics

Abstract Views
PlumX Metrics