Is Stock Market Price Predictable?

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Discussion Overview

The discussion revolves around the predictability of stock market prices and futures, exploring whether price movements can be anticipated or if they follow a random walk. Participants share their insights on market behavior, individual stock trends, and the complexities involved in making predictions.

Discussion Character

  • Debate/contested
  • Exploratory
  • Technical explanation

Main Points Raised

  • Some participants suggest that while certain stocks exhibit predictable patterns, such as cyclical trends or steady growth, others argue that stock prices behave randomly.
  • One participant notes that predictions can be made with some degree of certainty, but acknowledges the inherent uncertainty and high margins of error in stock price forecasts.
  • Another participant emphasizes the human element in stock trading, highlighting that individual motivations and management decisions can influence stock performance.
  • A participant claims to have developed software that predicts stock price movements at least one day in advance, suggesting that with low transaction costs, such predictions could be profitable.
  • There is a mention of futures trading, with a participant questioning the understanding of futures in the context of the discussion.

Areas of Agreement / Disagreement

Participants express differing views on the predictability of stock prices, with no consensus reached. Some believe in the potential for prediction, while others maintain that randomness prevails.

Contextual Notes

The discussion reflects varying assumptions about market behavior, the role of human decision-making, and the limitations of prediction models. Some statements depend on specific definitions of predictability and the context of trading.

Who May Find This Useful

Individuals interested in stock market dynamics, financial modeling, and the psychology of trading may find this discussion relevant.

tronter
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Do you think that the future price of an asset, such as a stock or future is predictable to a certain degree? Or do they behave randomly (i.e random walk)?
 
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Ebay goes up and down in 3 month cycles, apple does the same sort of trend but it goes up steadily, just more or less gains at certain times of the year. google is in a straight line up.

Each stock is independent and you need to remember, its not just a number that randomly moves, its the output of a company that can do just about anything with its money, good or bad
 
Going by your name, I'm going to guess that you are a resident of Hogtown and are therefore referring to the TSE. Regardless, I don't have an answer. You can predict some things with some reasonable degree of certainty, or you can listen to the experts and buy Bre-Ex instead. It's a crapshoot, but with somewhat better odds than a VLT.
 
It is not possible to predict anything in the real world with certainty. So all predictions have their margins of error. Stocks tend to have relatively high margins of error.
 
when you invest, you need to remember that on the other side of that stock ticker is a group of people, each individually motivated for different reasons and being order ed around by managers, potentially good or bad. People mess up, we pull through, stuff happens. my best advice is do your research first. get soem practice in even at einvesting's website if you want
 
yes but I am also talking about futures Ki Man. Do you know what futures are? Have you studied financial math?
 
tronter said:
Do you think that the future price of an asset, such as a stock or future is predictable to a certain degree? Or do they behave randomly (i.e random walk)?
I spent a few years writing software to predict future price movements. It shows that stock price movements are predictable at least one day in advance, to a degree at which only a brokerage house could (greatly) profit. The transaction costs must be very small (like 0.05%) to profit. I didn't test futures.
 

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