The practice of buying a stock and then recommending it to others, in an attempt to raise the stock price. The legality of such a practice is ambiguous, since anyone who buys a stock is likely to be recommending it to others. If you want to be absolutely safe, mention in your post whether you currently hold a position (long or short) in that stock.
For floor traders, the practice of trading in and out of contracts throughout the trading day in hopes of making a series of small profits.
The practice of buying a stock, holding as long as the trend continues, and then selling as soon as the momentum appears to be slowing.
The practice of trading in and out of the market on very small price fluctuations. A person who engages in this practice is known as a scalper.
Buying at the bid and selling at the offer as soon as possible.
The practice of trading in and out of the market on very small price fluctuations. Scalping normally involves establishing and liquidating positions quickly, usually within the same day, hour or even just a few minutes.
Scalping is the act of removing the scalp, usually with the hair, as a portable proof or trophy of prowess in war. The practice has been known in Europe, Asia and Africa. Scalping is also associated with frontier warfare in North America, and was practiced by Native Americans and white colonists and frontiersmen over centuries of violent conflict.