Janus Capital Group Inc. this week reported second quarter net income of $23.4 million, or $0.13 per diluted share, compared with net income of $41.9 million, or $0.23 per diluted share, in the second quarter 2011.

The firm also reported that its average assets under management during the Q2 were $155 billion compared with $171.6 billion during the second quarter 2011.

At June 30, Janus' total AUM were $152.4 billion compared $169.8 billion at June 30, 2011.