Thanks, Al. Good afternoon, everyone. As Al mentioned, I'll cover second quarter results for the investments in new business segment and LSV.
During the second quarter of 2021, the investments in new business segment activities consisted of the operation of our Private Wealth Management Group, our IT services business opportunity and the modularization of larger technology platforms to deliver on our One SEI strategy and other investments.
During the quarter, the investments in new business segment incurred a loss of $9.6 million, which compared to a loss of $10.1 million during the second quarter of 2020. Approximately $7 million of expense during the second quarter 2021 is tied to our One SEI effort.
Regarding LSV, our approximate 38.7% ownership contributed $35.1 million in income to SEI for the second quarter of 2021. This compares to a contribution of $28.3 million in income for the second quarter of 2020. Assets during the quarter grew approximately $800 million. LSV experienced net negative cash flow during the quarter of approximately $4.2 billion, offsetting market appreciation of approximately $5 billion. Revenue was approximately $116.4 million for the quarter with nominal performance fees.
Corporately, our expenses during the quarter included approximately $1.9 million of severance expense, which was recorded in the impacted business segments and approximately $5.6 million related to subadviser expense tied to revenue growth.
As we discussed on prior calls, similar to other companies in our industries, we are seeing competition for talent that is driving up personnel costs. We expect this to continue. In addition, our business growth, particularly in our IMS segment, will lead to an increase in overall employees.
Each quarter, we reassessed the vesting time frame for all previously issued options. This quarter, we made a change to the expense amortization schedule. This included in, due to our judgment that certain option tranches will vest 1 year sooner than previously estimated, additional expense during the quarter of approximately $500,000. As disclosed in our earnings release, we expect option expense for the remainder of the year to approximate $25.7 million.
Finally, during the quarter, we increased our spending in corporate marketing and branding -- in the branding area, enhancing our digital capabilities and expanding our market reach. We will continue to do so in support of the promotion and sale of SEI services. Our effective tax rate for the quarter was 22.3%. We have also included in our earnings release additional financial information. And I always remind you, please refer to our soon-to-be-filed 10-Q for additional information. I'm now happy to take any questions.