Securities fraud, also known as stock fraud and investment fraud, is a deceptive practice in the stock or commodities markets that induces investors to make purchase or sale decisions on the basis of false information. The setups are generally made to result in monetary gain for the deceivers, and generally result in unfair monetary losses for the investors. They are generally violating securities laws.
Securities fraud can also include outright theft from investors (embezzlement by stockbrokers), stock manipulation, misstatements on a public company's financial reports, and lying to corporate auditors. The term encompasses a wide range of other actions, including insider trading, front running and other illegal acts on the trading floor of a stock or commodity exchange.
Fraud by high level corporate officials became a subject of wide national attention during the early 2000s, as exemplified by corporate officer misconduct at Enron. It became a problem of such scope that the Bush Administration announced what it described as an "aggressive agenda" against corporate fraud. Less widely publicized manifestations continue, such as the securities fraud conviction of Charles E. Johnson Jr., founder of PurchasePro in May 2008. FBI Director Robert Mueller predicted in April 2008 that corporate fraud cases will increase because of the subprime mortgage crisis.
Dummy corporations may be created by fraudsters to create the illusion of being an existing corporation with a similar name. Fraudsters then sell securities in the dummy corporation by misleading the investor into thinking that they are buying shares in the real corporation.
According to enforcement officials of the Securities and Exchange Commission, criminals engage in pump-and-dump schemes, in which false and/or fraudulent information is disseminated in chat rooms, forums, internet boards and via email (spamming), with the purpose of causing a dramatic price increase in thinly traded stocks or stocks of shell companies (the "pump").
Cette page est générée automatiquement et peut contenir des informations qui ne sont pas correctes, complètes, à jour ou pertinentes par rapport à votre recherche. Il en va de même pour toutes les autres pages de ce site. Veillez à vérifier les informations auprès des sources officielles de l'EPFL.
La crise des subprimes () est une crise financière qui a touché le secteur des prêts hypothécaires à risque () aux États-Unis à partir de . Avec la crise bancaire et financière de l'automne 2008, ces deux phénomènes inaugurent la crise financière mondiale de 2007-2008. La crise trouve son point de départ dans la hausse des taux directeurs de la Réserve fédérale à partir de 2005. Cette hausse, renchérissant le coût du remboursement des prêts, s'accompagne ainsi d'un taux de défaut de 15 % de ces crédits en 2007.
In business, the term boiler room refers to an outbound call center selling questionable investments by telephone. It usually refers to a room where salespeople work using unfair, dishonest sales tactics, sometimes selling penny stocks or private placements or committing outright stock fraud. A common boiler room tactic is the use of falsified and bolstered information in combination with verified company-released information. The term is pejorative: it is often used to imply high-pressure sales tactics and, sometimes, poor working conditions.
Microcap stock fraud is a form of securities fraud involving stocks of "microcap" companies, generally defined in the United States as those with a market capitalization of under 250million.Itsprevalencehasbeenestimatedtorunintothebillionsofdollarsayear.Manymicrocapstocksarepennystocks,whichtheSECdefinesasasecuritythattradesatlessthan5 per share, is not listed on a national exchange, and fails to meet other specific criteria.
We will focus on ethical dilemmas facing professionals in the financial industry. Cases based on real events will illustrate various kinds of transgressions. We will then study what regulators and fir
Explore l'affaire Bernard Madoff, de sa création à ses suites.
Explore les comportements contraires à l'éthique dans les entreprises, y compris la manipulation des actions et la fraude, ainsi que les statistiques sur l'inconduite financière.
Explore l'évaluation neutre du risque pour les titres négociés, les dérivés, la couverture, la tarification des obligations et les contrats à terme sur les marchés financiers.
We introduce in this thesis the idea of a variable lookback model, i.e., a model whose predictions are based on a variable portion of the information set. We verify the intuition of this model in the context of experimental finance. We also propose a novel ...
EPFL2013
Various forms of real-world data, such as social, financial, and biological networks, can berepresented using graphs. An efficient method of analysing this type of data is to extractsubgraph patterns, such as cliques, cycles, and motifs, from graphs. For i ...
EPFL2023
While pump-and-dump schemes have attracted the attention of cryptocurrency observers and regulators alike, this paper represents the first detailed empirical query of pump-and-dump activities in cryptocurrency markets. We present a case study of a recent p ...