While we are all talking about securities codes here is one for review SEC Rule 10b-5... I mean I'm sure there is no concern here on this board but if you ever run into something concerning here is a neat little website: https://www.sec.gov/whistleblower/submit-a-tip
Manipulation Methods Manipulation is more difficult for the more liquid, or widely traded securities. It is much easier to manipulate a penny stock with a tiny typical daily trading volume than the share price of a large-cap company with daily turnover valued in billions of dollars.
The pump-and-dump is a market manipulation often used to artificially inflate the price of a microcap stock before selling it. Less common is the inverse poop-and-scoop scheme, in which false derogatory statements are made about a stock in order to buy it on the cheap. There's also the short-and-distort variety, essentially a poop-and-scoop executed by short-sellers in order o profit.
While such schemes rely primarily on promotion or factual misstatements they are often supplemented by illegal trading tactics designed to deceive.
One common means is order spoofing, which involves the placing of numerous buy or sell orders designed to move the price of the stock, then canceling them once other traders have moved their own bids or asks accordingly.
Order spoofing has tempted staff at large Wall Street firms alongside shady daytraders, and can take place in the bond and metals markets as well as in the stock market.
Market Data 
Markets 
AI
