Detailed Explanation
Why It Matters:
When buying with a market order, you pay the ask price. Shows immediate selling pressure/supply.
How It Works:
Top of the ask column in order book; market buy fills starting from lowest ask upward.
Common Mistakes:
Confusing ask (sell) with bid (buy); ignoring spread.
FAQs
Why higher than last price sometimes?
Volatility or thin books.
Visible where?
In trading interface's order book/depth chart.
