I was a bit bored so I did a little test to see what the activity level was like during the WC final. I started measuring from the start of the second half and 45 minutes forward. After the footie was done (including the extended play) I measured another 45 minutes. The data includes most (if not all exchanges) that offer API access so it should be fairly accurate.
Here are the resultsDuring the first 45 minutes of second half:
Total trades: 647
Total volume: BTC 271.64
After the match had finished:
Total trades: 831
Total volume: BTC 526.19
There was a 100 BTC dump during 2nd half of the match, so that makes up quite a bit on the total volume. According to bitcoinaverage.com the total volume for the past 24 hours is
BTC 18,302.20
I don't know if you can use this info., but I thought I'd share it :-)
Anyone who knows where I can find info. on the total trading volume across exchanges for a given time period?
Edit: I see that it does not include OKCoin and Huobi