Amit Muni
Analyst · Jefferies
Thank you, Jason, and good morning, everyone. I'll walk through the important items for the quarter, give some updated guidance for 2019 and then turn the call over to Jono for some closing remarks before opening it up for Q&A.
So beginning on Slide 3. Assets under management rebounded, ending the quarter at just under $59 billion, driven by market appreciation and inflows across all 3 regions where we have listed products. Excluding HEDJ and DXJ, we generated $1.8 billion of inflows, which represent 16% annualized organic growth, more than 2x the ETF industry and our second strongest quarter in 6 years. Flows were led by the strength of our floating rate treasury funds, USFR, which generated inflows of $1.3 billion and strengthened its position as the asset and liquidity leader in a category that we believe can meaningfully scale further.
Our domestic equity product suite generated 19% organic growth, representing $632 million of inflows, the strongest quarter in over 2 years. With strong performance track records, this suite of funds is very well positioned to continue to gain market share and drive demand from investors looking for alpha-generating strategies in the ETF structure.
For the second consecutive quarter, we grew our market share of European-listed gold products. The $287 million of inflows into our physical gold ETFs represented 33% market share, illustrating the importance of being first to market and establishing ticker awareness, particularly for beta exposures.
Our Canada franchise continued to generate consistent inflows and strong organic growth as well. And while our emerging market suite enjoyed the industry rebound in EM products, inflows into our broad-based EM funds were more than offset by outflows from our India ETF. These diversified flows are the results of the evolution of our distribution strategy to leverage data intelligence and digital marketing to optimize client coverage, entering into strategic partnerships and offering an award-winning Advisor Solutions program.
Now turning to the financial results on Slide 4. Revenues were just under $66 million for the quarter, primarily due to lower average revenue capture due to the change in mix of our U.S. AUM and 2 less revenue days in the quarter. On a GAAP basis, we had net income of $9 million. Excluding nonoperating charges, adjusted net income was $8 million or $0.05 a share on a GAAP and adjusted basis.
I'd like to highlight 2 of the unusual items that affected our results this quarter. The first, which had no net impact on our results, was a $4.3 million charge in other gains and losses that was fully offset by a benefit in our tax expense line. As part of our acquisition of ETF Securities, we held a portion of the proceeds in escrow to cover certain tax exposures. As the statute of limitations on those exposures expire, we release a portion of the escrow. Accounting rules require that we record the release as an expense and then as a reduction to tax expense. Again, it had no net effect on our results.
The second item, we incurred a $1 million noncash charge associated with vesting of stock-based compensation awards. Our normalized tax rate in the quarter was 26.9%, and we continued to expect a 26% to 27% tax rate in future periods, consistent with our previous guidance.
Turning to margins on the next slide. Our adjusted operating margin was 20% for the quarter, which was down slightly from the fourth quarter of last year due to lower revenues and higher seasonal payroll costs. Gross margins for our U.S. segment were 80.4%, up sequentially, reflecting seasonal items in the prior quarter. Gross margins for our international segment was 70.1%, up sequentially, reflecting the growth in average AUM.
On the next slide, you can see the changes in our expenses. For the U.S. segment, operating expenses increased slightly as higher seasonal compensation costs were partly offset by lower use of consultants as well as spending and marketing in sales due to timing. Third-party distribution expenses were above the guidance of 3.5% of advisory fees due to onetime expenses for onboarding a distribution platform as well as for one of our overseas marketing arrangements.
International segment expenses declined 4%, primarily due to timing of lower marketing and sales-related spending. We do expect marketing and sales spending to be picked back up in the second quarter.
Now I'd like to give you an update on our expense outlook for the remainder of the year on Slide 7. First, what hasn't changed? We expect no change in our previous gross margin guidance. At current AUM levels and the current asset mix, we expect gross margins to remain in the 80% to 81% range and in the 70% to 72% range for our international segment. We expect our third-party distribution fees will be 3.5% of advisory fees in the U.S. on a quarterly basis in the near term, but there may be periodic spikes when we onboard new platforms. We also expect no changes in our prior guidance for compensation in both our U.S. and international segment. You can see if you annualize first quarter numbers, we are trending in the middle of the guidance range.
So what has changed? We gave guidance that we expect discretionary spending to be flat with annualized second half 2018 expenses. As discussed in our second quarter earnings call last year, we identified $7 million in annual cost reductions, and we're working to identify additional savings. We are revising our guidance and expect an additional $3 million in savings, $2 million in the U.S. and $1 million in our international segment. So in the last 3 quarters, we have taken out approximately $10 million from our cost base. We will continue to look for efficiencies or other areas where we can reduce expenses that will not sacrifice revenue growth opportunities.
Thank you, and now it's my pleasure to turn the call over to Jono.