The fast-growing firm has added 300,000 square feet of office space to its headquarters.

CEO Jim Cracchiolo reported record client assets and a sharpened focus under the fiduciary rule.

The company also said that its advisor ranks are growing.

As a result of CEO James Gorman’s strategic moves, the firm earns the biggest share of revenue from wealth management of the six biggest U.S. lenders.

The company's broker headcount declined slightly, but it remains the largest wirehouse by number of advisors.

The firm's advisor ranks increased slightly during the third quarter, ending three consecutive periods of decline.

The bank is testing several trading and investing platforms and will be talking about "what might or might not work," CEO Jamie Dimon said during its third-quarter earnings call.

Adviser headcount continued a slow, but steady decline, slipping to 6,915 from 7,116 for the year-ago period.

CEO Dan Arnold said advisers’ uncertainty about the fiduciary rule is waning.

"This is a challenging time for the firm with the DoL rule," CEO Paul Reilly said.

The rule has cost the firm tens of millions of dollars in compliance and lost revenue.

Second-quarter revenue from brokerage services fell 3% year-over-year while assets under management jumped 26% to $14.8 billion.

The Buffalo-based institution generated $127 million in second-quarter revenue from trust services, up 5% year-over-year.

Rising markets boosted revenues for wealth- and asset-management arms at the largest U.S. banks to $18.4 billion in the second quarter, according to data compiled by Bloomberg.

The firm needs a digital advice offering for clients who don't want a traditional relationship, CEO James Gorman said.

The bank's wealth management businesses earned $124 million on $600 million in revenue in the second quarter.

The firm also said it has benefited from low attrition and its training program.

The firm's headcount has steadily declined since the bogus account scandal came to light last year.

Second-quarter revenue climbed 9% year-over-year even as the number of advisers dropped by 6%.

The wirehouse’s pre-tax earnings jumped 42% year-over-year despite losing 176 advisers in that time.