Volatile

When the market or security tends to vary often and wildly in prices, it is said to be volatile.

Volatility

The measurement of how much an underlying security fluctuates over a period of time.

Volume

Volume is the daily number of shares of a security that are traded. Volume is one of the most important indicators we watch. Its relation with price movements tells us 90% of the story behind a stock?s movement and future movements. At its simplest, increased volume on increasing prices shows accumulation. Increased volume on lower prices shows distribution. There are many variations on this theme, and we spend a great deal of time poring over price/volume relations to determine which way a stock will move.

When-Issued Trading

Occurs when the security has been listed and posted for trading, but the certificate representing the security itself is not yet issued and available for settlement. The exchange bulletin issued on listing of the security indicates if the trading will be done on a when-issued basis. In this case, the issuance of the security is guaranteed and the delay in issuance is often due to factors relating to the printing and distribution of the security. The period for when-issued trading is usually less than one week.

Whisper Number

Analysts publish earnings forecasts for companies they follow. Sometimes analysts publish a lower number than they really believe to reduce chances of a negative surprise, but they supposedly “whisper” what they really think to their best friends. Most whisper numbers you see on the Web are simply the analysts’ consensus forecasts plus the average of the most recent two or three earnings surprises. 

Thin Market

A market that occurs when there are comparatively few bids to buy or offers to sell, or both. The phrase may apply to a single security or to the entire stock market. In a thin market, price fluctuations between transactions are usually larger than when the market is liquid. A thin market in a particular stock may reflect lack of interest in that issue, or a limited supply of the stock.

Tick

Slang used for minimum spread. Depending on the stock price it could be a half-cent, one cent or five cents.

Ticker Tape

Each time a stock is bought and sold, it is displayed on an electronic ticker tape. It is a record of current trading activity on an exchange.