Persistence in financial markets

S. Jain*, P. Buckley

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review


    Persistence is studied in a financial context by mapping the time evolution of the values of the shares quoted on the London Financial Times Stock Exchange 100 index (FTSE 100) onto Ising spins. By following the time dependence of the spins, we find evidence for power law decay of the proportion of shares that remain either above or below their 'starting' values. As a result, we estimate a persistence exponent for the underlying financial market to be θf ∼ 0.5.

    Original languageEnglish
    Pages (from-to)133-136
    Number of pages4
    JournalEuropean Physical Journal B: Condensed Matter and Complex Systems
    Issue number1-2
    Publication statusPublished - 1 Mar 2006


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