Technical analysis is based on several key principles and assumptions that guide its methodology.

Firstly, the principle of market action states that the price of an asset reflects all available information. Technical analysts believe that all relevant factors affecting an asset's price, including economic data, news, and market sentiment, are already reflected in its price chart.

The assumption of trend is another fundamental principle. Technical analysts believe that prices move in trends and that history tends to repeat itself. They aim to identify and follow these trends to capitalize on potential price movements.

Support and resistance levels are essential concepts in technical analysis. The principle suggests that prices tend to exhibit levels at which they struggle to move beyond (resistance) or find support (support). These levels are determined based on historical price action and can provide insights into potential future price movements.

Another key assumption is that price patterns and chart formations can provide valuable information. Technical analysts study various patterns, such as triangles, head and shoulders, and double tops/bottoms, to identify potential trend reversals or continuations.

The principle of volume suggests that trading volume can confirm the validity of price movements. High volume during price breakouts or significant trends is seen as an indication of strong market participation and increased reliability of the price movement.

Overall, the key principles and assumptions of technical analysis revolve around the belief that price movements are not random and that historical price patterns and indicators can provide insights into future price behavior.

Technical analysis is a method of evaluating securities by analysing statistical trends, price movements, and trading volumes, based on the assumption that historical market behaviour can predict future price movements. Key principles include the idea that market prices reflect all available information, meaning that fundamentals are already priced in. Another principle is that price movements follow trends, which may persist over time rather than moving randomly. Analysts also rely on the concept of support and resistance levels, where prices tend to reverse or stall. Additionally, technical analysis assumes that history tends to repeat itself due to consistent market psychology. Common tools include chart patterns, moving averages, and indicators like RSI and MACD to identify trading opportunities. This approach is widely used in stocks, forex, and commodities for short-to-medium-term trading decisions.