I Have a Dream is a public speech delivered by American civil rights activist Martin Luther King Jr. during the March on Washington for Jobs and Freedom on August 28, 1963, in which he calls for an end to racism in the United States and called for civil and economic rights.
The Bid/Ask Spread. The bid/ask spread is the difference in price between the bid and ask. In active stocks the bid/ask spread is typically $0.01, for example the bid is $10.05 and the offer is $10.06. The attached chart example shows a Level 2 in the SPDR S&P 500 ETF.
The bid-ask spread works to the advantage of the market maker. Continuing with the above example, a market maker who is quoting a price of $10.50 / $10.55 for security A is indicating a willingness to buy A at $10.50 (the bid price) and sell it at $10.55 (the asked price).