In contrast, a larger spread suggests lower liquidity, as there are fewer investors willing to negotiate. ![]() Often, a smaller spread suggests higher liquidity, meaning more buyers and sellers in the market are willing to negotiate. The bid-ask spread can indicate a stock’s liquidity, which is how easy it is to buy and sell in the marketplace. The data displayed in the quote bar updates every 3 seconds allowing you to monitor prices in real-time. ![]() The bid size displays the total amount of desired shares to buy at that price, and the ask size is the number of shares offered for sale at that price. The numbers next to the bid/ask are the “ size”. amount that a seller is currently willing to sell. The bid is the highest amount that a buyer is currently willing to pay, whereas the ask is the lowest jbanzhaf3ATgmail.The bid & ask refers to the price that an investor is willing to buy or sell a stock. William Cahan Distinguished Professor,įounder, Action on Smoking and Health (ASH), BANZHAF III, B.S.E.E., J.D., Sc.D.įAMRI Dr. In short, says the professor, our world is made up of asymmetries and other imperfections, and we have to understand the implications, regardless of what the theories are called. Similarly, human faces are asymmetrical, so that when one half of a face is reflected in a mirror (or otherwise) to make a complete composite face, the result usually looks weird.įor similar reasons, many women as well as men part their hair in an asymmetric way - to one side or the other - to improve their appearance, and many art works and architectural structures are deliberately made asymmetrical, notes Banzhaf. In any event, argues Banzhaf, we know that there are many asymmetries in the real world asymmetries which most of us accept if not rely upon.įor example, the human body isn't symmetrical, which can create problems for people whose hearts are for some reason on the right - rather than the left - side of their bodies. called this effect asymmetry-induced symmetry, but could have referred to it as a form of super asymmetry since it epitomizes the notion that imperfections make things perfect."Ĭhaos Theory provides other examples of how very small differences - arguably asymmetries - can nevertheless be very important and have major consequences.Ī classic and well cited example explains that the very small asymmetries in the flow of air introduced by a butterfly flapping its wings in Brazil can cause a hurricane in Texas. "There are instances in which the observed behavior of the system can be symmetric only when the system itself is not. Motter have written, in the journal Physical Review Letters, about asymmetry-induced symmetry. patents, and the inventor of the Banzhaf Index.īanzhaf says that the concept of super asymmetry, while fictional, and not directly related to the theory called super symmetry, does have some relationship to the real world.Īs Sheldon initially described it, "my equations have been trying to describe an imperfect world, and the only way to do that is to introduce imperfection into the underlying theory."Īmy replies, "so, instead of super symmetry, it would be super asymmetry?!"Īctually, physicists Takashi Nishikawa and Adilson E. If it were, that would be quite surprising, since the physics and other science on the show is quite realistic, notes Professor John Banzhaf, an MIT- trained physicist and engineer with two U.S.
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