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Vecchio 05-11-08, 12:21   #1 (permalink)
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Truffe azionarie: la tecnica del Pump & Dump

Che Cos’è la tecnica Pump-and-Dump
Denominata Pump-and-Dump (Pompa e Sgonfia) è legate al fenomeno dello spamming, attraverso il quale il truffatore cerca di generare una domanda artificiale verso le azioni di piccole o sconosciute società, per poi vendere ad un prezzo inflazionato. Si tratta di un esempio notevole di ingegneria sociale e manipolazione del mercato. L’unico ovviamente a guadare è lui, (il truffatore) mentre l’ignara vittima che ha partecipato attivamente alla truffa convinta di moltiplicare il proprio investimento, adesso si ritrova con in mano azione che valgono poco o niente.


Pump and dump
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Contents
[hide]

* 1 Pump and dump scenarios
o 1.1 Specific examples
o 1.2 Pump and dump spam
* 2 See also
* 3 References
* 4 Further reading
* 5 External links

"Pump and dump" is a form of microcap fraud that involves artificially inflating the price of a stock through false and misleading positive statements, in order to sell the cheaply purchased stock at a higher price. Once the operators of the scheme "dump" their overvalued shares, the price falls and investors lose their money. Stocks that are the subject of pump-and-dump schemes are sometimes called "chop stocks."[1][2]

While fraudsters in the past relied on cold calls, the Internet now offers a cheaper and easier way of reaching large numbers of potential investors.[1]

[edit] Pump and dump scenarios

Pump and dump schemes tend to take place either on the Internet including e-mail spam campaigns or through telemarketing from "boiler room" brokerage houses (for example, see Boiler Room). Often the stock promoter will claim to have "inside" information about impending news. Newsletters that purport to offer unbiased recommendations then tout the company as a "hot" stock. Messages in chat rooms and email spam urge readers to buy the stock quickly.[1]

Unwitting investors then purchase the stock, creating high demand and raising the price. When the people behind the scheme sell their shares and stop promoting the stock, the price plummets, and other investors are left holding stock that is worth significantly less than what they paid for it.


Fraudsters frequently use this ploy with small, thinly traded companies—known as "penny stocks," generally traded over-the-counter (in the United States, this would mean markets such as the OTC Bulletin Board or the Pink Sheets), rather than markets such as the New York Stock Exchange or NASDAQ—because it is easier to manipulate a stock when there is little or no independent information available about the company.[3] The same principle applies in the United Kingdom, where target companies are typically small companies on the AIM or OFEX.

[edit] Specific examples

See also Robert E. Brennan

During the dot-com era, when stock market fever was at its height and many people spent significant amounts of time on stock Internet message boards, a 15-year-old named Jonathan Lebed showed how easy it was to use the Internet to run a successful pump-and-dump. Lebed bought penny stocks and then promoted them on message boards, pointing at the price increase. When other investors bought the stock, Lebed sold his for a profit, leaving the other investors holding the bag. He came to the attention of the U.S. Securities and Exchange Commission (SEC), which filed a civil suit against him alleging security manipulation. As is commonly the case in SEC actions, Lebed settled the charges by paying a fraction of his total gains. He neither admitted nor denied wrongdoing, but promised not to manipulate securities in the future.[4]

In April 2007, the SEC brought charges against Park Financial Group as a result of an investigation into a pump and dump scheme during 2002-2003 of the Pink Sheet listed stock of Spear & Jackson Inc.[5]

[edit] Pump and dump spam

Pump and dump stock scams are prevalent in spam, accounting for about 15% of spam e-mail messages. A survey of 75,000 unsolicited emails sent between January 2004 and July 2005 concluded that spammers could make a return of 6% by using this method, while recipients who act on the spam message typically lose 5% of their investment within two days.[6] A study by Böhme and Holz[7] shows a similar effect. Stocks targeted by spam are almost always "penny stocks", selling for less than $5 per share, not traded on major exchanges, are thinly traded, and are difficult or impossible to sell short. Spammers acquire stock before sending the messages, and sell the day the message is sent.[8]

http://en.wikipedia.org/wiki/Pump_and_dump

Pump and dump spam differs from many other forms of spam (such as advance fee fraud emails and lottery scam messages) in that it does not require the recipient to contact the spammer to collect supposed "winnings," or to transfer money from supposed bank accounts. This makes tracking the source of pump and dump spam difficult, and has also given rise to "minimalist" spam consisting of a small untraceable image file containing a picture of a stock symbol.[citation needed]
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Vecchio 05-11-08, 13:20   #2 (permalink)
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Stai parlando quindi delle banche d'affari!!!
Upgrade - PUMP
Downgrade - DUMP

Questa tecnica è usata su quasiasi tipo di azione, non soltanto su quelle piccole!!!
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Vecchio 05-11-08, 13:22   #3 (permalink)
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Originalmente inviato da Virus72 Visualizza messaggio
Stai parlando quindi delle banche d'affari!!!
Upgrade - PUMP
Downgrade - DUMP

Questa tecnica è usata su quasiasi tipo di azione, non soltanto su quelle piccole!!!
Bravissimo!
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Vecchio 05-11-08, 13:22   #4 (permalink)
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non è una novita
è nata prima della borsa questa tecnica
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Vecchio 05-11-08, 13:30   #5 (permalink)
borsa d'acqua calda
 
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-zeneize- has a reputation beyond repute-zeneize- has a reputation beyond repute-zeneize- has a reputation beyond repute-zeneize- has a reputation beyond repute-zeneize- has a reputation beyond repute-zeneize- has a reputation beyond repute-zeneize- has a reputation beyond repute-zeneize- has a reputation beyond repute-zeneize- has a reputation beyond repute-zeneize- has a reputation beyond repute-zeneize- has a reputation beyond repute
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Originalmente inviato da veezmo Visualizza messaggio
Bravissimo!
Il fatto che ci siano i rapinatori di banche
non assolve gli scippatori di vecchiette eh....
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Vecchio 05-11-08, 13:33   #6 (permalink)
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Originalmente inviato da -zeneize- Visualizza messaggio
Il fatto che ci siano i rapinatori di banche
non assolve gli scippatori di vecchiette eh....
secondo me si sbaglia bersaglio. Ti ripeto o mastertony è affiliato a JP morgan oppure è un povero diavolo crocifisso ingiustamente.
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Vecchio 05-11-08, 13:44   #7 (permalink)
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Originalmente inviato da veezmo Visualizza messaggio
secondo me si sbaglia bersaglio. Ti ripeto o mastertony è affiliato a JP morgan oppure è un povero diavolo crocifisso ingiustamente.
Questo 3d è solo informativo perché i più inesperti potrebbero non conoscere la tecnica del P&D.
Non ho mai parlato in questo thread del multinick spaammer da te citato.
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