The rules explicitly state that prices are truncated to two decimal places (e.g., $3.257 is counted as $3.25) rather than using standard rounding. This deviates from common intuition and could lead careless traders to misjudge boundary prices, posing a moderate rule trap.

The national average gas price is highly positively correlated with Crude Oil. If gas prices hit the higher threshold options (e.g., $5.00), it typically reflects a substantial supply shock or demand surge in the oil market. Furthermore, sustained high gasoline prices elevate inflation expectations, which could exert upward pressure on the US 10-Year Treasury Yield.