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Trading Assets

Trading is the prcess of market players buying and selling securities in the secondary markets. They may be motivated by different concerns.

Speculation - some participants may trade because they have view on where the traded assets will be priced in the future.
Investments - securities as a store of value and a means of accruing returns over time.
Risk Managers - trade in order to alter the risk profile of their firm or client portfolio.
Market Makers - firms that participate in the markets in order to provide services to their clients.

Trade indicators are measures (typically numeric) which various traders use to gauge whether an asset is a good buy.

Value : seeks to formulate a theoretical value for an asset such that purchase decisions can be driven by differences in the market price of an asset and its theoretical value.
Technical : the technical trading strategy looks for patterns in price charts on the basis that supply and demand drives prices and price charts are the most direct measurement of supply and demand.
Anomalies - are observed patterns in the markets that cannot easily be accounted for with the efficient market hypothesis
Signaling - occurs when a company insider takes an action that is considered to indicate either company strength or weakness.
Market Regimes - are periods where the market is generally bullish versus periods where fear dominates the market.
Machine Learning - provides methods to learn patterns from data in a way that may appear as somewhat of a black box.

Calculating Indicators - demonstrates the process of taking a dataset of prices and adding indicators (such as moving averages) to each record.

Portfolio construction is the process of designing a portfolio out of the asset signals in such a manner that takes risk into consideration.

Trade Sizing and Stops - trade sizing simplifies the portfolio problem by investing in all assets with a buy rating and just limiting the trade size to a fixed percentage of capital. No calculations are typically involved.
Pairs Trading and Spreading - seeks to manage a portfolios overall risk exposure to undesired risks by trading one asset against another.
Portfolio Construction - uses quantitative methods to maximize a portfolios outcome versus some measure of risk.

Asset Allocation is the process to decide which asset classes to include in a portfolio, and possibly a set of limits around those asset classes.
Macro Strategies are based on an assessment of the macro economy and trends that are developing within.