[JumpCrisscross]

This is correct if we replace consumers with retail traders.

Pricing in eighths guarantees a minimum bid-ask spread, what the market-makers make before adjustments, of an eighth. With pricing in cents the minimum spread is a penny spread.

Canada isn't changing pricing to twentieths - it's still priced to the cent, except cash transactions will be rounded to the twentieth unless the customer has pennies in which case they can pay in exact change. Thus I do not believe the comparison is apt.