CSH2 is a swap-based UCITS ETF tracking the euro overnight rate €STR, charging 0.10% a year, and it is not a money market fund and not a deposit. Against Trading 212’s interest on uninvested cash, it wins on one thing that matters at size: the units are your property, while cash is a claim capped at €20,000 by the Cypriot compensation scheme (£85,000 under the FSCS for UK clients). The yields are close — both track the same overnight rates, with the ECB deposit facility at 2.25% since 17 June 2026 as the anchor — so protection and tax, not headline rate, should decide it.
If you keep meaningful cash inside Trading 212, you have two realistic ways to earn something on it. You can switch on the platform’s interest on uninvested cash and let the balance tick up daily, or you can buy an overnight-rate ETF such as CSH2 and hold the yield as fund units instead. Both are sensible. They are not the same thing, and the differences matter more than the headline rates suggest.
I have used both approaches for my own short-term money, and my honest summary is this: the cash interest wins on convenience and small balances, while the money market ETF wins on legal ownership, and often on tax, once the amount is large enough that you actually care what happens to it. The yield gap between the two moves around and is rarely the deciding factor.
Below I will compare the two on yield, protection and tax, then give you my verdict by use case.
What CSH2 actually is (and what it is not)
CSH2 is the London-listed, GBP-hedged accumulating share class of the Amundi Smart Overnight Return UCITS ETF, a fund that started life under the Lyxor brand. The underlying strategy targets the euro short-term rate, €STR, plus a small spread before costs, using a swap-based structure. The GBP-hedged class you see as CSH2 converts that into a return roughly in line with short-term sterling rates. €STR itself is the overnight rate published by the European Central Bank, and you can see its current level on the ECB’s €STR page.
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In practice the NAV grinds upward a tiny amount every trading day, in line with overnight rates minus the fee. That fee is 0.10% a year, not the 0.05% often quoted — read off the justETF profile for LU1190417599 on 26 August 2026, where the fund also shows €6.95bn under management and an inception date of 2 March 2015. The reference rate itself is published daily by the ECB on its €STR page, and €STR has historically fixed a few basis points below the deposit facility rate, which is 2.25% with effect from 17 June 2026. So the honest expectation is roughly €STR minus 0.10%, not a promised number. Always check the current TER and structure on the official Amundi ETF factsheet before buying.
Two things CSH2 is not. It is not a bank deposit, so no deposit guarantee stands behind it. And it is not entirely risk-free: the swap structure carries a sliver of counterparty risk that UCITS rules cap and collateralise but do not remove. In normal conditions daily moves are measured in hundredths of a percent, which is why people treat it as a cash proxy. I cover the wider category in my guide to money market funds, bonds and deposits for short-term money in Europe.
The euro version for EU investors
One trap worth flagging early: CSH2 is the sterling-hedged line. If your base currency is euros, buying it means taking a GBP position or paying Trading 212’s FX conversion fee both ways. The same Amundi fund has a euro share class listed on Euronext, and competing euro overnight-rate ETFs exist from other providers. If you earn and spend in euros, buy a euro line. The strategy is identical; only the currency wrapper changes. For more detail, see our guide: Trading 212 vs IG.
How Trading 212’s interest on cash works
Trading 212 pays daily interest on uninvested cash once you opt in. The rate differs by currency, moves with central bank rates, and Trading 212 keeps a margin between what it earns and what it pays you. The money that generates this yield is held in a mix of bank accounts and qualifying money market funds (QMMFs), which is a detail most users skip past and should not.
Why it matters: the bank-held portion sits under client-money rules and may benefit from deposit protection arrangements, while the QMMF portion is an investment, not a deposit, and no deposit guarantee scheme covers it. So the “cash” earning interest is, behind the curtain, partly the same kind of instrument as CSH2, just held in the platform’s name rather than as ETF units in your account. I go deeper on the entity structure and compensation limits in my breakdown of how safe Trading 212 is.
The upside is real, though. Interest accrues on every spare euro or pound automatically, there is nothing to buy or sell, no spread to cross, and no trade needed when you want the money for an ETF purchase. For the float sitting between deposits and purchases, that convenience is worth a lot.
CSH2 vs Trading 212 cash interest: side by side
| Feature | CSH2 (money market ETF) | Trading 212 cash interest |
|---|---|---|
| What you own | UCITS ETF units held in your name, segregated from the broker | A cash claim under client-money rules; T212 places it in banks and QMMFs |
| Return source | €STR-linked swap return, accrued daily into the NAV (accumulating) | Interest paid daily; T212 keeps a margin over what it earns |
| Rate level (2026, indicative) | Very close to the full overnight rate minus ~0.05% TER | Usually somewhat below the overnight rate; varies by currency |
| Deposit guarantee | No, it is a fund, not a deposit | Only the bank-held portion may qualify; the QMMF portion does not |
| If the broker fails | Units are your segregated property, transferable to another broker | Client-money reconciliation plus investor compensation limits apply |
| Typical tax treatment | Often capital gains on sale; some countries tax accumulating funds annually | Interest income, usually taxed at your income or savings rate each year |
| Costs and friction | TER, bid-ask spread, possible 0.15% FX fee if you buy the wrong currency line | None visible; the cost is the margin inside the rate |
| Convenience | Must buy and sell during market hours; T+ settlement | Fully automatic, instantly available for purchases |
Rates and terms change, so treat every number above as illustrative for 2026 and verify the current interest rate in the app and the current TER on the factsheet before committing serious money.
Fee figures in this guide are cross-checked against our EU broker fee benchmarks, reviewed quarterly.
Safety: your fund units vs the platform’s arrangements
This is the difference I weight most heavily. When you buy CSH2 or its euro equivalent, the units are your property, segregated from Trading 212’s balance sheet. In an insolvency the default outcome is that your positions transfer to another broker.
Interest-earning cash is a claim, not property. Client-money rules are robust, but history says cash is where shortfalls appear when a broker fails badly. Compensation schemes then cap recovery: £85,000 under the FSCS for clients of the UK entity, €20,000 under the Cypriot ICF for most EU clients. For a five-figure float that is fine. For a six-figure sum parked while you decide what to do with it, I would not rely on the cash route; I covered better options in where to park €100k short term in Europe.
Tax: capital gains vs interest income
Here the ETF often earns its keep. Trading 212’s cash interest is interest income in essentially every European country, taxed each year at your income or flat savings rate, with nothing you can do about the timing.
CSH2 and its euro siblings are accumulating funds. Nothing is distributed, so in many countries you owe nothing until you sell, and the uplift is then a capital gain, which is frequently taxed at a lower rate than interest and can sometimes be offset against losses. You also control the timing of the taxable event, which is genuinely useful around year-ends.
Big caveat: several countries pierce this deferral. Germany applies the Vorabpauschale to accumulating funds annually, Ireland has its own exit-tax regime with deemed disposal, Italy taxes fund gains at its flat capital-income rate, and a few countries treat money market fund gains as income outright. The gap between “capital gains on sale” and “interest income every year” ranges from decisive to nonexistent depending on your passport and residence, so check your national rules or ask a local tax adviser before assuming the ETF wins.
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Practicalities on Trading 212: currency lines, spreads, execution
A few mechanical points from actually doing this. Match the currency: euro base currency means the euro share class, not CSH2, or the 0.15% FX fee both ways eats months of the yield advantage. Use a limit order, because spreads are tight mid-session but widen at the open and close, and a sloppy fill is expensive on an instrument returning a few percent a year. And note the high unit price, often above €100 or £1,000, so check whether fractional dealing is available for the specific line you want. Trading 212 charges no commission on the trade itself; the rest of the cost structure is covered in my review of Trading 212’s fees for ETF investors.
One thing neither option replaces: a proper emergency fund. Money you might need on a random Tuesday has different requirements from money waiting to be invested, and I set out how I split those roles in my piece on cash vs short-term bond ETFs for the emergency fund.
My verdict: what I would do
For small balances and the working float, under roughly €10,000 that cycles in and out as you invest, I would just enable the cash interest and stop thinking about it. The convenience is worth the slightly lower rate, and the compensation scheme comfortably covers the amount.
For deliberate parked money, say €10,000 to €100,000 sitting for months ahead of a house purchase or a decision, I would hold a money market ETF in my base currency. You capture more of the overnight rate, you own the asset outright rather than holding a claim on the platform, and in many countries the tax treatment is kinder. For sterling investors that instrument is CSH2; for euro investors, the euro class of the same fund or a competing €STR tracker.
And for anything above the compensation limits, spread it: part platform interest, part money market ETF, possibly part bank term deposit outside the broker entirely. Overnight-rate ETFs are excellent tools, but no single wrapper deserves all of your cash.
Frequently asked questions
Q: Is CSH2 a money market fund?
A: No, and the distinction is not academic. A money market fund is a specific legal category governed by the EU Money Market Fund Regulation (EU) 2017/1131, with rules on what it may hold, how liquid it must be and how it prices units. CSH2 is a UCITS ETF that reaches the same economic outcome by a different route: it holds a collateralised swap that pays the €STR overnight rate. In practice both behave like cash; in law they are different products with different failure modes, and only one of them is subject to the MMF Regulation’s liquidity buffers.
Q: Is CSH2 safe?
A: Safe in the ways that matter for parking cash, with two caveats worth stating plainly. The units are segregated UCITS assets held in your name, so neither Trading 212’s nor Amundi’s insolvency touches them. Daily price moves are measured in hundredths of a percent. The two caveats: there is no deposit guarantee behind it, because it is a fund and not a bank account; and the swap structure carries counterparty risk that UCITS rules cap and collateralise but do not eliminate. If overnight rates ever went negative again, the NAV would drift down rather than up. For a cash float you expect to spend within a year, those are acceptable risks. For money you cannot afford to see move at all, a covered deposit is the right instrument.
Q: Is CSH2 the same as Trading 212’s interest on cash?
A: No. CSH2 is an overnight-rate UCITS ETF you own as fund units, with the yield accruing inside the price. Trading 212’s interest is paid on uninvested cash the platform places in banks and qualifying money market funds on your behalf. The returns are similar in size but ownership, protection and tax treatment differ.
Q: Can CSH2 lose money?
A: In small amounts, yes. It is a swap-based fund tracking an overnight rate, so daily moves are tiny and drawdowns have historically been minimal, but there is no deposit guarantee and a capped, collateralised counterparty risk remains. If overnight rates went negative again, the NAV would slowly decline rather than grow.
Q: Is CSH2 covered by the FSCS or a deposit guarantee scheme?
A: Not for market losses, because it is a fund rather than a deposit. What protects you is the UCITS structure itself: the units are segregated assets held in your name, so a broker or fund-company insolvency should not touch them. Compensation schemes only matter if segregated assets go missing through fraud or failure.
Q: Which pays more, CSH2 or Trading 212’s cash interest?
A: Usually the ETF, by a modest margin, because it passes through almost the full overnight rate minus its 0.10% TER, while the platform keeps a spread on cash interest. The gap moves as rates change, so compare the current in-app rate with the fund’s recent yield on the official factsheet.
Q: How is CSH2 taxed for European investors?
A: In many countries the gain is taxed only when you sell, as a capital gain, whereas platform interest is taxed annually as income. But Germany’s Vorabpauschale, Ireland’s exit tax and similar regimes tax accumulating funds along the way, and some countries treat money market fund gains as income. Verify with your tax authority or a local adviser.
Q: Should euro-based investors buy CSH2 on Trading 212?
A: Generally no, because CSH2 is the GBP-hedged share class, so you would pay a 0.15% FX conversion each way and carry sterling exposure. Euro investors should use the euro share class of the same Amundi fund or a competing €STR overnight-rate ETF listed in euros.
European UCITS/ETF investor with 11+ years building a global dividend and index portfolio, and founder of Financial Expert Class. I write every guide here from first-hand experience investing across EU brokers and tax regimes — not theory. More about me →