[csomar]

I wonder if they are getting DDOS'ed. Many crypto exchanges do get DDOS'ed before a big move. It is the nature of the beast since these market are not regulated and the "elite" guys operating on it think this is how free markets work (whoever has the most toys win).

[ycombobreaker]

The CBOE website is separate from the trading system. Futures in the US are regulated by the CFTC. There is no reason to believe that this is manipulation. As others have mentioned, it is likely that their website is simply getting hugged by the Internet due to the new contract.

[csomar]

I know that, but DDOSers target everything even if it doesn't stop operations.

I also think some bitcoin exchanges are using this model too. Bitfinex trading did not stop when their website went down the last time.