The Chicago Board Options Exchange (CBOE)’s website became inaccessible right as it launched its very first bitcoin futures contracts on Sunday.

The website downtime – which CBOE said was due to significant traffic surrounding the futures launch – was timed with the sudden uptick in the price of bitcoin, which reached $15,732 at 23:06 UTC.

As of this writing, CBOE’s website more available and the price of bitcoin has kept steady, exchanging at $15,226.29 per the BPI.

Available data proposes that buyers are purchasing contracts. Activity has centered around the first contract to expire on January 17, 2018, with social media comments pointing to purchases of contracts scheduled to expire on March 14.

672 January contracts have been purchased as of 7:10 pm EST, at a price of $15,800.

In all, the tough start is a fitting start to the trading of the new contracts.

CBOE’s is the first to be exchanged on a major exchange in the U.S., and it’s expected to be followed next week by CME Group, which has declared that it will initiate its own launch of its own products on December 18.

According to CBOE officials, they are hoping that the futures launch will result in other products and services founded around cryptocurrencies, pending approval from the SEC.