The Charles Schwab Corporation SCHW Moat

Key data

The moat

An independent advisor who leaves Schwab has to re-paper every client account, move every held security, retrain staff, and explain the switch to clients who never asked for it. That friction shows up in third-party custody counts: more than 58% of roughly 23,000 US RIA firms name Schwab as a custodian, against about $5.2 trillion of Schwab RIA custody assets reported in January 2026. The primary moat is cost and scale, held with high confidence: one clearing stack and three chartered savings banks amortized over the largest retail custody base in the country, which the FY2025 filing itself names as spreading operating cost over a large client base. Secondary is switching cost at the advisor layer, held with medium confidence, because an RIA can add a second custodian without firing the first. No rival custodies for a majority of US RIA firms, executes roughly one third of retail brokerage order flow, and funds the resulting balances through its own savings banks; Fidelity, Goldman and BlackRock each fail at least two of those three. What it produces is margin and throughput: operating margin back to 41.4% in 2025 and revenue per employee of $839,000.

Widening or narrowing

The scale series runs 472, 509, 564, 598 in revenue per employee from 2016 through 2019, breaks hard at 378 in 2020 when the large brokerage acquisition lifted headcount from 19,700 to 32,000, then rebuilds to 569, 773, 810, 839 through 2025. The 2023 and 2024 margin trough was funding and one-time cost, not lost customers: deposit repricing, a $172 million FDIC special assessment in late 2023, and $645 million of acquisition, intangible and restructuring charges in 2024.

The money in this chain sits on client cash. In 2025, interest revenue was $15.5 billion of $27.68 billion in revenue, asset management and administration fees $6.51 billion, bank deposit account fees $980 million. Schwab holds the fat slice, and the fat slice is the most contestable link in the whole structure, since a client can move idle cash in an afternoon.

The honest case for a narrower moat is the return on capital. Vendor-stated ROIC went 12.7%, 12.7%, 4.7%, 7.3%, 9.6%, 4.5%, 5.6%, 9.5% across 2018 to 2025 and never regained the pre-deal level. Advisor Services revenue fell three straight years, $5.19 billion to $4.43 billion to $4.05 billion, before the reporting basis changed. Verdict: stable.

What breaks it, and who

Cash is the pressure point. Fidelity's late-2024 move to default RIA custody balances into FCASH at 2.32% showed the same spread being harvested next door, and advisors can move that cash manually. Schwab's own July 2026 call described the securities book repricing slowly and the forward curve pricing a single 25 basis point hike, which means the 2025 margin recovery leans on rates holding.

Custody is fragmenting at the small end. Altruist grew advisor relationships 111.7% to 1,179 and now serves more than 6,000 advisors, and industry reporting notes more RIAs running multiple custodians.

Self-directed growth is going elsewhere. Robinhood ended 2025 with $324 billion of platform assets, up 68%, on $68.1 billion of twelve-month net deposits; Interactive Brokers ended December 2025 with $779.9 billion of client equity, up 37%, and 4.4 million accounts, up 32%.

The read changes on three items: whether the Forge acquisition, valued near $660 million and approved by Forge holders in January 2026, converts private-markets access into fee revenue; whether consolidated assets drift from $491 billion at year-end 2025 toward the $700 billion Category II line and its stiffer capital treatment; and the next independent custody survey showing whether Altruist's relationship count keeps doubling.

Closing thoughts

The moat is real and conditional, and stable rather than widening. Scale is proven by a nine-year revenue-per-employee series that survived an acquisition break, and the 2023 margin collapse recovered fully by 2025, which argues the damage was funding and integration rather than competitive loss. The one checkable item is the mix of asset management and administration fees against interest revenue, currently $6.51 billion versus $15.5 billion, because a moat monetized through client cash is a moat rented from the rate cycle. The moat strengthens if fee revenue grows faster than interest revenue while RIA custody share holds, and weakens if interest revenue stays above half of total revenue while challenger custodians keep doubling advisor relationships.