Opening and Closing Auction Interview Guide
Opening and closing auction interview guide for open, close, imbalances, benchmark demand, volatility, examples, and mistakes.
Candidates explaining equity auction timing and benchmark execution concepts.
Open and close solve different problems
The opening auction establishes a starting price after overnight information, while the closing auction often concentrates benchmark and portfolio flow.
Closing volume can be special
Index funds, mutual funds, and benchmarked strategies may prefer the close. That can concentrate volume and change execution tradeoffs around the auction.
Concrete example
An order benchmarked to the closing price may participate in the close auction, but it still faces imbalance uncertainty and final price risk.
Volatility and information differ by time
The open may reflect accumulated news and wider uncertainty, while the close may reflect benchmark demand and end-of-day liquidity.
Common mistakes
Candidates often say auction equals more liquidity. A better answer discusses timing, imbalance, benchmark demand, and venue-specific matching rules.
Practice the pattern
Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.