What the Xtrackers ETF Does and How It’s Performed

The Xtrackers II EUR Overnight Rate Swap UCITS ETF (LU0290358497) holds more than €22 billion in assets, making it by far the largest money-market ETF in Europe. It does not invest in stocks or corporate bonds. Instead, it aims to replicate the return that large banks in the eurozone earn when they lend cash to one another overnight, using the official €STR (Euro Short-Term Rate) plus a fixed bonus of 8.5 basis points per day.

The ETF tracks the Solactive €STR +8.5 Daily Total Return Index synthetically, through a swap contract. That means the fund holds a basket of collateral while the swap counterparty delivers the index performance. For an investor, the practical outcome is an instrument that mirrors the price of overnight euro cash almost in real time, without the need to open multiple savings accounts or negotiate bank rates.

Historical returns make the case: the ETF was basically flat (‑0.03%) in 2022 when ECB rates were just turning positive, then climbed to 3.27% in 2023 and 3.79% in 2024 as the central bank raised rates sharply. As the ECB began cutting again, the yield fell to 2.22% in 2025. The share price has not suffered a single negative day over the last three years, because the underlying overnight rate stayed positive throughout that period.

The Three-Year Steak of No Losses and Where the Counterparty Risk Sits

The No-Loss Streak Depends Entirely on Positive ECB Rates

The fund’s price can only fall when the overnight rate turns negative. That happened for years during the ECB’s negative-rate era (2014–mid-2022), which caused a cumulative peak‑to‑trough loss of 3.70% since inception. Since mid-2022, however, the ECB deposit rate has stayed above zero, so the ETF booked net positive interest every single day. Volatility is extremely low – between 0.08% and 0.15% over one, three and five years. A renewed string of negative central bank rates, though currently not expected, remains the main risk for anyone holding this product as a cash parking spot.

Advertisement

The Price of Convenience – and the Swap Counterparty Concern

At 0.10% annual total expense ratio, the ETF is competitive but not the absolute cheapest; smaller rivals dip slightly below that level. The bigger trade‑off is structural. Because the fund uses a synthetic swap, investors are exposed to a small amount of counterparty risk that does not exist in a bank account covered by the statutory deposit guarantee scheme. Should the swap counterparty fail, the collateral pool would still protect a large portion of the assets, but a residual gap remains. This is the cost of the immediate, full transparency the ETF offers: its yield follows the actual €STR essentially tick‑by‑tick, while call‑money accounts at different banks can lag, introduce rate tiers, or impose short notice periods for withdrawals.

Who Gains and Who Loses from Rate Transparency

Households that constantly hunt for the best call-money rates gain the most, because the ETF automatically tracks the benchmark without manual switching. Banks that rely on sticky, below‑market savings rates lose a little competitive edge as savers become more aware of the true short‑term reference rate. For the provider, DWS (which sponsors the Xtrackers brand), the fund’s sheer size gives it a durable commercial advantage, as larger scale can absorb the thin fee margin more comfortably.

Deciding If This ETF Fits Your Cash Reserve

  • Verify your current bank’s overnight rate. Compare your savings account’s effective annual yield with the latest €STR figure (published by the ECB each day) plus roughly 0.085% gross, minus the 0.10% management fee. If the ETF’s net yield is consistently higher, switching a portion of your liquid cash could boost returns over months.
  • Match the holding period to your need. The ETF can be bought or sold on any exchange trading day without notice, so it’s a candidate for emergency funds or money earmarked for a known future expense (e.g., a tax payment in six months). Because the price only declines if the ECB takes rates negative again, the risk for a 6‑12 month parking strategy is limited – but not zero.
  • Factor in the lack of deposit insurance. If protecting the full nominal value under a government-backed scheme is non‑negotiable for you, the ETF is unlikely to replace all your cash savings. For amounts above the insured ceiling, the swap risk may be acceptable, but you need to accept a small contractual exposure to a swap counterparty.
  • Watch the ECB’s policy path. The ETF’s return is directly tied to the central bank’s overnight rate. If markets start pricing a return to negative rates, the share price will begin to reflect that expectation, potentially introducing small losses. Setting a calendar reminder for ECB monetary policy meetings can help you time any adjustment to your cash holdings.