Understanding Implicit Volatility on Polymarket
For those diving into Polymarket, understanding implied volatility is crucial, much like in options trading. When you see a market for something like 'Will $EURJPY close above 184.50 on [date]?', the odds presented aren't just a simple probability. They embed the market's collective expectation of how much the price of $EURJPY will move between now and the resolution.
Lower implied volatility means the market expects less price fluctuation, potentially leading to tighter odds for events that are 'in the money' or 'out of the money.' Higher implied volatility, conversely, suggests participants anticipate significant movement, broadening the range of likely outcomes and often making longer-shot predictions more expensive. It's a key factor in assessing whether the reward for a given Polymarket outcome truly justifies the risk, especially when you're looking at current levels like $AUDCAD at 0.97972 and considering its historical range.
While true in theory, Polymarket markets often don't have enough liquidity or participants to truly reflect a sophisticated 'implied volatility' in the way options markets do. It's usually just a basic probability.