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. 2015 Feb 27;10(2):e0118399. doi: 10.1371/journal.pone.0118399

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© 2015 Tan et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 1 — The probability difference ΔP(t) for (a) 200 individual stocks in the SSE and (b) 200 individual stocks in the NYSE. The black line shows ΔP(t) averaged over 200 stocks with error bars. The other lines represent ΔP(t) averaged over 150, 100, and 50 randomly chosen stocks. The time windows are T ₁ = 24 and T ₂ = 205 for the NYSE, and T ₁ = 10 and T ₂ = 210 for the SSE.