Does High Trading Volume Always Guarantee a Tight Bid-Offer Spread?
Not always, but high trading volume is strongly correlated with a tighter bid-offer spread. High volume indicates strong market participation and liquidity, which increases competition among buyers and sellers, forcing the spread to narrow.
However, if a sudden, high-volume event is driven by extreme, one-sided panic selling or buying (high volatility), the spread can temporarily widen significantly due to market maker risk aversion.