Here is where things stood on November 22:
Currently the GOP is favored to keep control of both the House and the Senate.
Senate Probability of GOP Control: 74.2% Fractional: 5/14
House Probability of GOP Control: 72.8% Fractional: 4/11
Things have changed somewhat.
Here is a chart of the prices for options on the GOP retaining control of the US Senate:
The current probability of GOP control of the US Senate has actually risen to 79.7%
Things are dramatically different for the US House:
The market at Tradesports only gives the GOP a 53% chance of retaining the US House. That is a dramatic change from the 72% probability they had in November.