RT Journal Article SR Electronic T1 The Effect of Tripping the US Equity Market-Wide Circuit Breaker on Liquidity: Evidence from the Coronavirus Selloff JF The Journal of Investing FD Institutional Investor Journals SP 21 OP 34 DO 10.3905/joi.2022.1.230 VO 32 IS 1 A1 Charles Favreau A1 Ryan Garvey YR 2022 UL https://pm-research.com/content/32/1/21.abstract AB We examine changes in market liquidity around the triggering of US equity market-wide circuit breakers (MWCBs). The coronavirus pandemic has led to heightened market volatility and the tripping of four MWCBs in 2020. When the market reopens following an MWCB halt, trading demand (volume) surges. The rise in trading coincides with shifts in trading activity across exchanges and dark markets, and the cost of trading rises significantly. Although the market is less liquid immediately after a halt, conditions steadily improve over time and converge to similar levels on days in which the MWCB does not trip.