Technical analysis

Technical analysis

Technical analysis is the study of historical prices, trading volume and chart-derived indicators to describe market trends and patterns, without relying primarily on company financial statements.

What it means

Technical analysis looks at a security's trading history rather than primarily at its financial statements. A chart may show prices, volume, moving averages or other indicators. People use these observations to describe trends, momentum and possible areas of support or resistance.

An indicator is a calculation applied to market data; a chart pattern is an interpretation of its shape. Neither establishes why a price moved or what it will do next. Fundamental analysis, by contrast, examines factors such as earnings, cash flow and valuation. Technical analysis can describe a market without resolving whether a proposed trade is affordable to execute or suitable for a portfolio.

How it is calculated

Technical analysis has no single formula. One common indicator is a simple moving average (SMA), the arithmetic mean of a fixed number of closing prices:

SMA_n = (P_1 + P_2 + ... + P_n) / n

  • SMA_n is the average price over the selected n trading sessions, in the same currency per share as the prices.
  • P_1 through P_n are the closing prices for those sessions, each in currency per share.
  • n is the number of trading sessions; it has no currency unit.

As a new session closes, the oldest price drops out and the newest enters. A moving average therefore changes with both the prices and the chosen window. Other technical indicators have different formulas and assumptions; there is no universal technical-analysis score.

Worked example

Suppose a hypothetical US stock closes at US$48, US$50, US$52, US$50 and US$50 per share over five trading sessions.

  1. Choose a five-session window: n = 5.
  2. Add the closing prices: 48 + 50 + 52 + 50 + 50 = 250 US$ per share.
  3. Divide by five: SMA_5 = 250 / 5 = US$50 per share.

The latest close equals this five-session average. That comparison alone gives no reliable direction for the next session. If the next hypothetical close is US$55, the oldest US$48 close drops out: the new five-session SMA is (50 + 52 + 50 + 50 + 55) / 5 = US$51.40 per share. The average rises even though it remains below the new closing price. Neither calculation includes the bid-ask spread, fees or the effect an order might have on the market.

Why it matters before you trade

A chart can help identify what price and volume have done, but placing an order introduces separate questions. The quoted bid and ask may differ from the last charted price; a large order may affect its own execution price. Liquidity, order size, volatility, trading hours and pending events can also change the practical outcome.

A technical signal based on a closing price does not guarantee a fill at that price. Looking only at a favorable-looking pattern may overlook execution costs or a basket that concentrates exposure in one stock or sector. Historical patterns are observations, not evidence that the same outcome must recur.

How PreTrAIde uses it

PreTrAIde does not present its analysis as chart-pattern technical analysis. Its pre-trade analysis evaluates a user-built stock basket before an order is placed, using quantitative estimates and an AI layer anchored on those estimates, news and analyst ratings. The quantitative layer includes estimated spread, participation in daily volume, market impact, daily volatility, value at risk and concentration measures.

For each line and the basket, PreTrAIde returns a GO, NO-GO or MODIFY verdict, a model-estimated success probability, a risk assessment, a suggested execution strategy and plain-language reasoning. These are decision support, not recommendations or guaranteed outcomes. PreTrAIde does not receive or execute orders; users place trades through their own broker.

Common mistakes

  • Treating an indicator as a prediction. A moving average summarizes past prices; it does not establish a future return.
  • Changing the window after seeing the result. Selecting only settings that fit a past chart can overfit historical data.
  • Ignoring how prices are recorded. Unadjusted historical prices around a stock split can produce misleading comparisons.
  • Confusing a signal with an executable price. A charted close may differ from the price available for an actual order.

Frequently asked questions

Does technical analysis predict stock prices?

No indicator or chart pattern can reliably establish a future price. Technical analysis describes historical market behavior and may be used to frame a hypothesis, not guarantee its outcome.

What is the difference between technical analysis and fundamental analysis?

Technical analysis focuses on trading data such as prices and volume. Fundamental analysis examines a company's business and financial information, including earnings, cash flow and valuation.

Is technical analysis the same as pre-trade analysis?

No. Technical analysis studies market-history patterns; pre-trade analysis examines a proposed trade before an order is placed, potentially including execution costs, liquidity and risk. PreTrAIde's pre-trade analysis is not chart-pattern technical analysis.

Related terms

Moving average Moving average is the average of a stock’s prices over a rolling number of trading periods, used to smooth short-term fluctuations and describe its past price trend. Momentum Momentum is the tendency of a stock’s recent price direction to persist for a period, often measured by its return over a specified lookback window. Fundamental analysis Fundamental analysis is the evaluation of a company’s financial performance, business and economic conditions to assess its value relative to its stock price. Pre-trade analysis Pre-trade analysis is the assessment of a proposed stock order or basket before placement, estimating execution costs, liquidity and risk to inform the investor’s decision and execution approach. Transaction cost analysis (TCA) Transaction cost analysis (TCA) is the measurement or estimation of a trade’s execution costs against a defined price benchmark, including effects such as spread, market impact and fees. Overfitting Overfitting is when a model learns quirks of its training data rather than patterns that generalize, making its apparent performance unreliable on new data.

Technical analysis

Mean reversion Relative strength index (RSI) MACD Bollinger Bands Support and resistance Trend following Breakout Market sentiment analysis All glossary terms →

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Educational content, not investment advice. PreTrAIde is analysis software, not a broker: it never executes orders, and its verdicts are decision support, not recommendations to buy or sell.