How do Yes and No sides interact in Hyperliquid HIP-4 markets?

Question

Accepted Answer

The Yes and No sides express opposite views on the same outcome, but they still trade as separate assets with their own books. That means the relationship is conceptually linked while execution can feel uneven in practice. One contract, two explicit sides: A HIP-4 market defines one outcome question, but the venue exposes explicit sides such as `Yes` and `No`. That makes the market easy to explain conceptually while still forcing traders to care about which side they are actually entering. Why the two sides do not always feel identical: The underlying event is shared, but the books can have different urgency, different resting depth, and different near-term participants. That is why one side can feel easier to enter or exit even though both belong to the same market. What traders should watch: Before trading, compare more than the headline price. Look at depth, spread, and whether the side you want is the side with cleaner execution conditions. What researchers should store: Keep the side label attached to every observation and trade. If you flatten the market into one generic price stream, you lose the microstructure that often explains why execution felt different from the clean contract intuition.