user12311: The price spikes every hour, on the 26 minute mark:
https://bitcoinaverage.com/charts.htm#USD-averages-1d
(Although it seems like spikes do not show up for some people/browswers.  Her is what I see: imgur.com/aKYaDvX )

user12311: Someone could have programmed a bot to place buy-orders every hour based on a some historical price average, say over the last 24 hours.      

user659: It could be someone buying a fixed number of coins every hour at market price.
The height of the spike would depend on the market depth at the time.

12311: <p>The price spikes every hour, on the 26 minute mark:</p>

<p><a href="https://bitcoinaverage.com/charts.htm#USD-averages-1d" rel="nofollow noreferrer">https://bitcoinaverage.com/charts.htm#USD-averages-1d</a></p>

<p>(Although it seems like spikes do not show up for some people/browswers.  Her is what I see: imgur.com/aKYaDvX )</p>
 12311: <p>Someone could have programmed a bot to place buy-orders every hour based on a some historical price average, say over the last 24 hours.      </p>
 659: <p>It could be someone buying a fixed number of coins every hour at market price.</p>

<p>The height of the spike would depend on the market depth at the time.</p>
