Avanza Grew Its Mortgage Book 44% and Then Apologized for It

Avanza Grew Its Mortgage Book 44% and Then Apologized for It

On the face of it, Avanza's Q3 2026 is a triumph. Operating profit of SEK 920 million — the second highest in the company's history — EPS of SEK 4.9, and a return on equity of 44% against a target of "at least 35%." The bank added 53,000 new customers, pulled in a net inflow of SEK 23 billion, and set another quarterly record for mutual fund inflows at SEK 18 billion — good for 32% of the entire Swedish fund market's net inflows in the quarter.

And yet the most interesting thing management said all morning was an admission of success overshooting: “What we have seen is that our offering is maybe too attractive.” — Gustaf Unger, CEO · 2026-10-16 That sentence, aimed at the mortgage book, is the hinge of the whole call. This is not a growth story with a problem; it is a growth story deliberately putting a brake on its own fastest-growing product, and the reasons why matter more than the headline.

Growth is not the problem. Mix is.

The income line is where the first real tension surfaces. Trading-related income fell because volatility dropped over the summer and daily turnover slowed — only partly offset by seven and a half more trading days than Q2. More tellingly, when markets get choppy and the broad customer base gets cautious, the initiated customers keep trading. Avanza's Private Banking and Pro segments generated 30% of brokerage income in Q3, up from 26% in Q2. Those are the customers with the best pricing, so revenue per turnover fell and the brokerage margin compressed to 10.3 basis points from 11.0.

The same mix effect hit FX income: foreign turnover held stable at 31% of the total, but Private Banking and Pro clients carry lower FX fees through the FX account, so the margin diluted anyway. CFO Jonas Svärling was blunt that this should not be read as a new baseline: “I would not extrapolate that into the future... It's more, I would say, temporarily related to how the market developed this quarter.” — Jonas Svärling, CFO · 2026-10-16

Maybe. But note the structural undertow. Private Banking is the company's stated strategic priority, its stated ambition to be the number one private banking player by 2030. If the strategic priority is also the lowest-margin segment per unit of turnover, then "mix dilution" is not purely cyclical — it is partly the price of the strategy. Management leans hard on the broader customer base seasonal-behaviour explanation, and it is probably half right. The other half of that question is still pending.

The mortgage that got too popular

Then the admission that carries the real narrative weight. The mortgage portfolio is 44% larger than a year ago. Rather than celebrate, Avanza in October temporarily paused new mortgage applications from customers with SEK 3–10 million in savings capital, and from November 1 raises the rate on that segment by 10 basis points.

We feel that it's prudent to slow down the growth now... it's just that the math doesn't equalize when we grow with 44% on the liability side and the asset side our goal is to grow with 15%.

The mortgage offering is, in other words, a customer-acquisition weapon that outran its own funding model. Unlike the large-cap banks, Avanza cannot tap covered-bond wholesale markets; its savings account deposits are the funding base. Svärling was emphatic this is not fear: “our appetite for liquidity risk and appetite for credit risk is very low... loan to value is less than 50%.” — Jonas Svärling, CFO · 2026-10-16 Gustaf Unger was equally clear that it is not a defence against an impending downturn.

But the strategic cost is real, and the sell side smelled it immediately. Analysts pressed twice on whether pausing a flagship product undercuts the 2030 private banking ambition, and whether net inflows now slow. The answer was candid — the marginal effect is negative, but flows should still be decent — and it exposed something honest: the product that unlocks the big banks' savings-retention argument is being throttled because it works too well. Unger did offer the offsetting read: gating the SEK 3–10 million tier creates an incentive for customers to consolidate savings to cross the threshold.

Deposits, the rate cycle, and the pass-through question

The other half of the funding equation moved the wrong way. deposit volume fell versus Q2 as customers deployed cash into risk assets, cutting income from surplus liquidity to SEK 499 million. Customers now hold just 8.9% of savings capital in cash — “That is clearly lower than we have seen in the quarters before this one in the year.” — Gustaf Unger, CEO · 2026-10-16 Average deposit rate ticked up to 0.81% on mix, lending rate eased to 2.68%.

This is where Avanza converges with a global banking conversation happening this week. Several US regionals reporting alongside it — JPMorgan on deposit beta, Schwab on NIM expansion, First Horizon on asset sensitivity — are all wrestling with the same question: if rates rise again, how much of the benefit survives contact with customer expectations? Avanza's Riksbank read is that a near-term hike is now more likely, and Svärling gave the cleanest possible framing: “we believe net interest margin will expand if rates increase as we believe they will within short.” — Jonas Svärling, CFO · 2026-10-16 But pass through rates are explicitly unguided — a decision to be made at each repo meeting. And the CEO flagged the deposit-behaviour wildcard directly: AI agents letting customers shop their cash across banks. He is not worried, arguing balances are a by-product of customers waiting to re-enter the market rather than a yield-optimisation pool.

Where the money is going: Sigma, Denmark, and an AI side effect

The growth engine management actually wants to talk about is Avanza Sigma, the algorithm-driven equity portfolio product broadly launched to private banking and Pro customers on August 31. It gathered SEK 710 million of assets in roughly a month, aimed at a discretionary portfolio management market management sizes at SEK 1 trillion, at roughly half the cost of traditional alternatives. Add cloud migration and a Danish build, and you get the reason headcount is up about 15% year over year — the highest since the pandemic — even with a 9% Swedish cost guidance for the year and an 8% long-term target.

The most quietly interesting disclosure was on Denmark: 2026 costs are now guided to SEK 40 million rather than SEK 50 million, though the SEK 120–150 million total start-up estimate is unchanged, with ~20% capitalised and launch in H2 2027. The savings came not from structural efficiency but from doing more work in-house. The longer-term kicker: “when you develop something from scratch using AI methodologies, we learn a lot from that and try to use these learnings in other parts of the organization.” — Jonas Svärling, CFO · 2026-10-16 That is a genuine, if early, AI-at-scale argument — and the first time this bank has had a reason to make one.

The story in one line

Avanza enters the autumn with real momentum, a fortress-like 4.8% leverage ratio and SEK 46 billion of deposit headroom, and the second-best profit it has ever printed. But this quarter's real content is a company discovering that its cheapest customer-acquisition tool — an aggressively priced mortgage — grows faster than its deposit base can fund, and that its premium segment, the private banking customers it wants most, dilutes the revenue per trade. Neither is a crisis. Both are the sort of self-inflicted, high-quality problems only a very profitable bank gets to have — and both raise a question the bulls should want answered before they extrapolate the 44% ROE.