Bargain Hunter

Predicting the Future

With the relatively easily available daily price data of known stocks, you could fall into the trap of feeding an artificial intelligence network historical stock price data and trying to predict future price jumps. Then, armed with this knowledge, you could make a massive investment and sit back and wait for payday. Ha! However, the timeless arguments from the bestseller A Random Walk down Wall Street [5], which are no longer entirely new but all still valid, speak against this, stating that, in this case, the millions of market participants with similar ideas would quickly close any wormholes in the time structure, if they actually existed, because they would have known about possible price jumps at the same time and would have reaped the profits way before the crusading private investor.

There's no easy money to be made at the exchanges, I'm afraid, or is there? Are the exchanges just glorified casinos and follow the "random walk" theory [6], not because their development is actually random, but because prices are unpredictable? You're free to prove the random walker disciples wrong, of course. Try it; it could be lucrative, if it works!

Infos

  1. "Google Finance as you know it is going away": https://www.marketwatch.com/story/google-finance-as-you-know-it-is-going-away-here-is-what-will-remain-2017-09-27
  2. "Has Yahoo finance web service disappeared?": https://stackoverflow.com/questions/38355075
  3. Listings for this article: ftp://ftp.linux-magazine.com/pub/listings/linux-magazine.com/210/
  4. "Watchful Seller" by Michael Schilli, Linux Magazine, issue 188, July 2016, http://www.linux-magazine.com/Issues/2016/188/Perl-Monitoring-Payments
  5. Malkiel, Burton G. A Random Walk down Wall Street: The Time-Tested Strategy for Successful Investing. W. W. Norton & Company, 2016: https://www.amazon.com/Random-Walk-down-Wall-Street/dp/0393352242
  6. Random walk theory: https://en.wikipedia.org/wiki/Random_walk

The Author

Mike Schilli works as a software engineer in the San Francisco Bay area, California. Each month in his column, which has been running since 1997, he researches practical applications of various programming languages. If you go to mailto:mschilli@perlmeister.com he will gladly answer any questions.

Buy this article as PDF

Express-Checkout as PDF
Price $2.95
(incl. VAT)

Buy Linux Magazine

SINGLE ISSUES
 
SUBSCRIPTIONS
 
TABLET & SMARTPHONE APPS
Get it on Google Play

US / Canada

Get it on Google Play

UK / Australia

Related content

  • Perl: Portfolio Watch

    We'll show you a Perl script that helps you draw area graphs to keep track of your portfolio's performance.

  • Perl: Personal Finances

    A helpful Perl script gives you an immediate overview of your financial status, adding the balances of multiple accounts and share depots. It even allows users to add their own plugins.

  • Perl: PerlPanel

    One panel has a neat collection of applets and another has spectacular looks – but a combination of the two is rare. Now help draws nigh for the desktop: PerlPanel is extensible with do-it-yourself widgets.

  • Perl: Cucumber

    The Cucumber test framework helps developers and product departments jointly formulate test cases, not as program code, but in plain English. The initially skeptical Perlmeister has acquired a taste for this.

  • Follow the Money

    Looking for software to help you manage your money? The personal finance program KMyMoney can help you track income and expenses and better plan your financial future.

comments powered by Disqus
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters

Support Our Work

Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.

Learn More

News