Content Marketability The Bid-Ask Spread Explained: Options Trading 101 Automated Trading How do you calculate the bid-ask spread? You can even work limit orders downward or upward until you get filled. In our above example, we looked at the bid and ask size on SPY, which just https://www.bigshotrading.info/blog/bollinger-bands-what-should-you-know-about-this-indicator/ happens to be the most liquid security …
