Hi Everyone,
I have found something that I can not figure out. I am looking at bid and ask prices for SPY mini vs. regular options. I would think that considering that mini is simply 1/10 of a regular option contract, that the bid/ask prices would be same. However it seems that the prices are different. At the same time, the implied bid/ask volatility seems to be identical. Two questions come to mind:
1. Is there potential arbitrage opportunity. (getting 10 mini, shorting 1 regular)?
2. Why implied bid/ask volatility is listed same, but the prices are different?
