Updated September 29, 2026 · SumCue Editorial Team
Interactive Brokers vs Openbank
Interactive Brokers
Higher score in this comparison
Openbank
Where Interactive Brokers and Openbank differ
| Compare | Interactive BrokersReviewSee alternativesSee alternatives | OpenbankReviewSee alternativesSee alternatives |
|---|---|---|
| Minimum deposit | $0 | €1 |
| Stock trade fee | $0 | €1 |
| Markets | Bonds, ETFs, Forex, Funds, Futures, Options, Stocks | Stocks, ETFs, Funds, Crypto, Bonds |
| Regulators | SEC, FCA, SIPC | Comision Nacional del Mercado de Valores (CNMV) |
| Investor protection | SIPC up to USD 500,000 | EU ICS up to EUR 20,000 |
| Platforms | Client Portal, IBKR Desktop, IBKR Mobile, Trader Workstation | Web, App |
| Interest on cash | 3.38%Higher | 2.75% |
| Account fee | Not confirmed | €0 |
| Currency conversion fee | Not confirmed | 0% |
| Margin rate | 4.38% | Not confirmed |
| Options contract fee | $0.65 | Not confirmed |
| Deposit and withdrawal fees | Not confirmed | free transfers |
| Account types | ISA, SIPP, IRA, Joint, Corporate | Not confirmed |
We earn a commission when you sign up through links on this site. Partner status can affect where a brand appears in our rankings. Partners with a live offer in your country come first, then every other brand by score.
Key differences
- Interactive Brokers scores higher overall: 9.6 vs 9.5.
- Regulators: only Interactive Brokers offers SEC, FCA, SIPC.
- Regulators: only Openbank offers Comision Nacional del Mercado de Valores (CNMV).
- Founded is lower at Interactive Brokers: 1978 vs 1995.
- Interactive Brokers is licensed in 1 more country.
- Markets: only Interactive Brokers offers Forex, Futures, Options.
- Markets: only Openbank offers Crypto.
- Platforms: only Interactive Brokers offers Client Portal, IBKR Desktop, IBKR Mobile.
- Platforms: only Openbank offers Web, App.
- Interest on cash is higher at Interactive Brokers: 3.38% vs 2.75%.
Our verdict on each
Interactive Brokers
Interactive Brokers suits active, self-directed investors who trade often and want low costs across many markets. Stock trades cost $0 and the minimum deposit is $0, with SEC, FCA and SIPC oversight. Set aside time for a dense platform and remember most retail accounts lose money, 70.15% on site figures.
Openbank
Openbank runs a Spanish current account, an easy-access savings pot paying 2.75% and a Mastercard debit card from one app. It suits savers who want interest paid monthly with no lock-in, and households that want everyday banking and card spending in one place.
Score breakdown
| Area | Interactive Brokers | Openbank |
|---|---|---|
| Cost | 9.3Stock trades cost $0 on commissions and there is no minimum deposit, with options at $0.65. | 9.4HigherMonthly fee €0, account fee €0 and stock trade fee €1 keep the running cost light. |
| Offer | 9.6Covers bonds, etfs and forex plus isa, sipp and ira accounts, fractional shares and a mobile app. | 9.9Higher |
| Trust | 9.8Higher | 9.2 |
If neither fits
iuvoSAVE has interest on cash at 5% to 7%, against 3.38% for Interactive Brokers and 2.75% for Openbank.
iuvoSAVE reviewHow they place
| Ranking | Interactive Brokers | Openbank |
|---|---|---|
| Investing | 55 of 654 | 70 of 654 |
| Stock and ETF brokers | 33 of 358 | 43 of 358 |
| Robo-advisors | 9 of 154 | 15 of 154 |
Every fact side by side
| Fact | Interactive Brokers | Openbank |
|---|---|---|
| Features | Fractional shares, Mobile app | Travel, Multi currency |
| Pricing model | Commission free, Low fees | No annual fee |
| Legal entity | INTERACTIVE BROKERS LLC | OPEN BANK S.A. |
| Headquarters | United States | Spain |
| Founded | 1978Lower | 1995 |
| Support channels | Help centre, Community | Phone, Chat, Email, Help centre |
Robo-advisors
| Fact | Interactive Brokers | Openbank |
|---|---|---|
| Management fee | Not confirmed | 0.42% to 1.03% |
| Minimum investment | Not confirmed | €500 |
| Portfolio types | ETF | ESG |
Savings
| Fact | Interactive Brokers | Openbank |
|---|---|---|
| Headline rate | Not confirmed | 2.75% |
| Rate type | Not confirmed | Variable |
| Deposit protection | Not confirmed | EU DGS up to EUR 100,000 |
| Access terms | Not confirmed | Interest paid monthly; money withdrawable at any time in full or in part including accrued interest; free immediate transfers between the current and remunerated account |
| Monthly fee | Not confirmed | €0 |
| Account kind | Not confirmed | Easy access |
Credit cards
| Fact | Interactive Brokers | Openbank |
|---|---|---|
| Annual fee | Not confirmed | €0 |
| APR | Not confirmed | 0% |
| Rewards type | Not confirmed | None |
| Card kind | Not confirmed | Credit |
Loans
| Fact | Interactive Brokers | Openbank |
|---|---|---|
| Lender type | Not confirmed | Direct lender |
Where each stands against the rest
| Fact | Interactive Brokers | Openbank | Median |
|---|---|---|---|
| Account fee | Not confirmed | €0at the median | €0 |
| Currency conversion fee | Not confirmed | 0%below the median | 0.4% |
| Margin rate | 4.38%lowest quarter | Not confirmed | 8.83% |
| Options contract fee | $0.65at the median | Not confirmed | $0.65 |
| Interest on cash | 3.38%above the median | 2.75%below the median | 2.875% |
Median across 77 listed providers.
Pros and cons
Interactive Brokers
Pros
- Stock trades cost $0 and the minimum deposit is $0
- Options contracts cost $0.65 and cash earns 3.38%
- Covers bonds, etfs and forex with isa, sipp and ira account types
Cons
- Support runs on help centre and community only, with no phone line listed
- Fractional shares and a mobile app are the only extras listed, so portfolio building is limited to etf
- Most retail accounts lose money, 70.15% on site figures
Openbank
Pros
- Interest is credited monthly, and money is withdrawable at any time in full or in part, accrued interest included
- Transfers between the current and remunerated account are free and immediate, and the card runs on mastercard
- The Mastercard debit card carries a currency conversion fee of 0% with a multi-currency feature for travel
Cons
- The headline rate of 2.75% sits below the site median, which stands at 3%
- The credit card has a rewards type of none, so nothing comes back on card spending
- The robo adviser takes a management fee of 0.42% to 1.03% and needs a minimum investment of €500
Who each suits
Interactive Brokers
Who it suits
- Investors who place many trades and care more about the fee than the interface
- Anyone holding several markets at once, given bonds, etfs and forex
- Retirement savers, as isa, sipp and ira includes ISA, SIPP and IRA options
Who should look elsewhere
- Anyone who wants phone or chat support, since Interactive Brokers runs on help centre and community
- CFI, if you want a single app alongside stocks, etfs and forex
- bunq, if you want a bank account with a minimum deposit of €10 rather than trading
Openbank
Who it suits
- Savers who want interest paid monthly and no fixed term
- Households that want a current account, a savings pot and a card in one app
- Travellers who want a multi-currency card
Who should look elsewhere
- Wise, if a multi-currency account with a monthly fee of £0 matters more than deposit interest
- Starling Personal Account Debit Card, which charges a monthly fee of £0, if a UK current account fits better
- Varo Believe Secured Credit Card, which has a monthly fee of $0, if building a credit record is the aim
Country by country
| Country | Interactive Brokers | Openbank |
|---|---|---|
| Spain | No | Yes |
Questions about each
Interactive Brokers
What does it cost to trade stocks?+
Commissions are tiered, with the headline level listed as $0 for US stocks. Options contracts are charged at $0.65. Uninvested cash earns interest at 3.38%, and margin is available at a base rate of 4.38%.
Is there a minimum deposit?+
The listed minimum deposit is $0, so you can open and fund an account at a small starting balance. It ranks first on the site for the lowest entry point. Fractional shares also let you hold a slice of a share rather than a full unit.
Openbank
What does it cost to hold the account?+
Openbank charges a monthly fee of €0 and a credit card annual fee of €0. Transfers between the current and the remunerated account are free and immediate, and a stock trade costs €1, so everyday banking adds very little.
How much interest do I earn?+
The easy-access account pays a headline rate of 2.75%, credited monthly, and the rate type is variable. The site median stands at 3%, so the offer sits in the middle of the market rather than at either end.
Other options to compare
Other matchups
Interactive Brokers
Openbank