Distribution expenses for the second quarter of 2019 increased by $2.2 million, or 2%, compared to the second quarter of 2018. The increase was primarily due to enhancements to the Advisor compensation grid starting in 2019, which increased expense in the wealth management channel, and was partially offset by a decrease in average mutual fund AUM for which we pay Rule 12b-1 commissions to third party distributors.
For the six months ended June 30, 2019, distribution expenses decreased $2.5 million, or 1%, compared to the same period for 2018. The decrease was primarily due to a decrease in average mutual fund AUM for which we pay Rule 12b-1 commissions to third party distributors and was partially offset by increased expenses due to enhancements to the Advisor compensation grid starting in 2019, which increased expense in the wealth management channel.
Compensation and benefits during the second quarter of 2019 decreased $4.0 million, or 6%, compared to the same period of 2018, primarily due to severance costs in the second quarter of 2018. For the six months ended June 30, 2019, compensation and benefits expenses decreased $7.9 million, or 6%, primarily due to a decrease in share-based compensation primarily due to previously issued awards vesting fully, a decrease in severance costs and lower headcount. During the quarter, the Company announced certain actions to enhance organizational agility and accelerate business transformation, including its intent to outsource the transactional processing operations of its internal transfer agency. Affected employees will be eligible to receive benefits under the Company’s severance pay plan, including severance pay and outplacement services. The Company expects to record a pre-tax restructuring charge for severance benefits in a range of $4-6 million to be incurred across the third and fourth quarters of 2019.
General and administrative expenses for the second quarter of 2019 decreased $3.1 million, or 16%, compared to the second quarter of 2018. The decrease was primarily due to decreases in contractor, legal and consulting costs due to the completion of significant projects in 2018.
For the six months ended June 30, 2019, general and administrative expenses decreased $7.9 million, or 21%, compared to the six months ended June 30, 2018. The decrease was primarily due to decreases in contractor, legal and consulting costs due to the completion of significant projects in 2018. Fund expenses also decreased for the comparative period primarily due to decreased fee waivers in excess of revenue on certain products.
Technology, occupancy and marketing and advertising expenses for the second quarter of 2019 decreased a combined $1.6 million, or 6%, as compared to the second quarter of 2018 and decreased $2.5 million, or 5%, compared to the same period in 2018. Technology costs decreased due to lower shareholder servicing expense resulting from fewer accounts. Occupancy costs decreased as we realized cost savings from the closure of our field offices. Marketing and advertising expenses decreased due to timing of marketing spend.
The second quarter of 2018 included an intangible impairment charge of $1.2 million related to a terminated subadvisory agreement.
Investment and Other Income
Investment and other income for the three and six months ended June 30, 2019 increased $8.2 million and $14.8 million, respectively, compared to the same periods in 2018 primarily due to market appreciation, net of hedging activity, and an increase in interest income in our corporate investment portfolio primarily due to higher assets.