# Statistici matematice în tranzacționare. Face Curtis - Calea Testoaselor. De la amatori la comercianți legendari

Quantitative analysts often come from financial mathematicsfinancial engineeringapplied mathematicsphysics or engineering backgrounds, and quantitative analysis is a major source of employment for people with mathematics and physics PhD degreesor with financial mathematics master's degrees.

Data science and machine learning analysis and modelling methods are being increasingly employed in portfolio performance and portfolio risk modelling, [8] [9] and as such data science and machine learning Master's graduates are also hired as quantitative analysts.

In particular, Master's degrees in mathematical finance, financial engineering, operations researchcomputational statisticsapplied mathematicsmachine learningand financial analysis are becoming more popular with students and with employers.

See Master of Quantitative Finance for general discussion. This has in parallel led to a resurgence in demand for actuarial qualifications, as well as commercial certifications such as the CQF. The more general Master of Finance and Master of Financial Economics increasingly includes a significant technical component.

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This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. June Learn how and when to remove this template message Front office quantitative analyst[ edit ] In sales and trading, quantitative analysts statistici matematice în tranzacționare to determine prices, manage risk, and identify profitable opportunities.

Historically this was a statistici matematice în tranzacționare activity from trading but the boundary between a desk quantitative analyst and a quantitative trader is increasingly blurred, and it is now difficult to enter trading as a profession without at least some quantitative analysis education. In the field of algorithmic trading it has reached the point where there is little meaningful difference.

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Front office work favours a higher speed to quality ratio, with a greater emphasis on solutions to specific problems than detailed modeling.

FOQs typically are significantly better paid than those in back office, risk, and model validation. Although highly skilled analysts, FOQs frequently lack software engineering experience or formal training, and bound by time constraints and business pressures, tactical solutions are often adopted.

Quantitative investment management[ statistici matematice în tranzacționare ] Quantitative analysis is used extensively by asset managers. Some, such as FQ, AQR or Barclays, rely almost exclusively on quantitative strategies while others, such as Pimco, Blackrock or Citadel use a mix of quantitative and fundamental methods.

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See quantitative fund generally, and Outline of finance § Quantitative investing for a listing of relevant articles. Library quantitative analysis[ edit ] Major firms invest large sums in an attempt to produce standard methods of evaluating prices and risk.

LQs spend more time modeling ensuring the analytics are both efficient and correct, though there is tension between LQs and FOQs on the validity of their results.

LQs are required to understand techniques such as Monte Carlo methods and finite difference methodsas well as the nature of the products being modeled. Algorithmic trading quantitative analyst[ edit ] Often the highest paid form of Quant, ATQs make use of methods taken from signal processinggame theorygambling Kelly criterionmarket microstructureeconometricsand time series analysis.

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Algorithmic trading includes statistical arbitragebut includes techniques largely based upon speed of response, to the extent that some ATQs modify hardware and Linux kernels to achieve ultra low latency. Risk management[ edit ] This has grown in importance in recent years, as the credit crisis exposed holes in the mechanisms used to ensure that positions were correctly hedged, though in no bank does the pay in risk approach that in front office.

A core technique is value at riskand this is backed up with various forms of stress test financialeconomic capital analysis and direct analysis of the positions and models used by various bank's divisions.

Innovation[ edit ] In the aftermath of the financial crisis, there surfaced the recognition that quantitative valuation methods were generally too narrow in their approach. An agreed upon fix adopted by numerous financial institutions has been to improve collaboration. Model validation[ edit ] Model validation MV takes the models and methods developed by front office, library, and modeling quantitative analysts and determines their validity and correctness.

The MV group might well be seen as a superset of the quantitative operations in a financial institution, since it must deal with new and advanced models and trading techniques from across the firm.

## Quantitative analysis (finance)

Before the crisis however, the pay structure in all firms was such that MV groups struggle to attract and retain adequate staff, often with talented quantitative analysts leaving at the first opportunity.

This gravely impacted corporate ability to manage model risk, or to ensure that the positions being held were correctly valued. An MV quantitative analyst would typically earn a fraction of quantitative analysts in other groups with similar length of experience. In the years following the crisis, this has changed. Regulators now typically talk directly to the quants in the middle office such as the model validators, and since profits highly depend on the regulatory infrastructure, model validation has gained in weight and importance with respect to the quants in the front office.

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Quantitative developer[ edit ] Quantitative developers, sometimes called quantitative software engineers, or quantitative engineers, are computer specialists that assist, implement and maintain the quantitative models. They tend to be highly specialised language technicians that bridge the gap between software engineers and quantitative analysts.

The term is also sometimes used outside the finance industry to refer to those working at the intersection of software engineering and quantitative research. Mathematical and statistical approaches[ edit ] Further information: Mathematical financeFinancial modeling § Quantitative financeOutline of finance § Mathematical toolsand Financial economics § Derivative pricing Because of their backgrounds, quantitative analysts draw from various forms of mathematics: statistics and probabilitycalculus centered around partial differential equationslinear algebradiscrete mathematicsand econometrics.

Some on the buy side may use machine learning. The majority of quantitative analysts have received little formal education in mainstream economics, and often apply a mindset drawn from the physical sciences.

Quants use mathematical skills learned from diverse fields such as computer science, physics and engineering. These skills include but are not limited to advanced statistics, linear algebra and partial differential equations as well as solutions to these based upon numerical analysis.

Commonly used numerical methods are:.