Interactive Brokers
Capital Index
VS
Higher Rated
Interactive Brokers
Capital at risk · T&Cs apply
Choosing between Interactive Brokers and Capital Index depends on your trading style, preferred markets, and budget. Interactive Brokers is headquartered in Greenwich, USA, while Capital Index operates from London, UK. Interactive Brokers has the longer track record, established in 1978, compared to Capital Index which was founded in 2014. This in-depth comparison covers regulation, fees, platforms, markets, and overall ratings to help you decide which broker is the better fit in 2026.
Interactive Brokers
Capital Index
Interactive Brokers is the better choice overall, scoring 4.4/5 vs 3.2/5 on BrokerRank's independent rating. On fees, Capital Index offers lower spreads (0 pips).
See full side-by-side comparison belowOverall Rating
Interactive Brokers
4.4 vs 3.2
Lowest Fees
Capital Index
0.2 vs 0 pips
Regulation
Interactive Brokers
5 vs 1 licences
Min. Deposit
Interactive Brokers
$0 vs $100
Interactive Brokers
WinnerCapital Index
Interactive Brokers
Capital Index
Interactive Brokers holds licences from SEC, CFTC, FCA. Capital Index is regulated by FCA.
Both brokers offer access to Forex, Cfd, Indices, Commodities markets. Interactive Brokers additionally covers Stocks. Capital Index adds Crypto.
On spreads, Capital Index is more competitive with EUR/USD spreads from 0.0 pips, compared to 0.2 pips at Interactive Brokers.
Interactive Brokers supports Proprietary Web, Proprietary Mobile. Capital Index offers MT4, MT5.
Interactive Brokers requires no minimum deposit, while Capital Index sets a minimum deposit of $100. This makes Interactive Brokers accessible to traders with any budget.
BrokerRank scores Interactive Brokers at 4.43/5 and Capital Index at 3.21/5, based on 50+ data points covering regulation, fees, platforms, markets, and user experience. Interactive Brokers leads overall with a clear advantage.
Interactive Brokers
Interactive Brokers scores higher overall on our independent rating system. Interactive Brokers holds a 4.4/5 rating vs Capital Index's 3.2/5. The best choice ultimately depends on your trading style — see our full verdict above for a detailed breakdown.
Interactive Brokers offers spreads from 0.2 pips, while Capital Index starts at 0 pips. Check the fees section above for a full breakdown.
Interactive Brokers requires a minimum deposit of $0. Capital Index requires $100.
Interactive Brokers is regulated by SEC, CFTC, FCA, MAS, ASIC, while Capital Index holds licences from FCA.
Interactive Brokers supports Proprietary Web, Proprietary Mobile. Capital Index supports MT4, MT5.
Yes, you can hold accounts at multiple brokers simultaneously. Many traders diversify across platforms to access different markets and tools.
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Trading involves risk. Past performance is not indicative of future results. Capital at risk. Full risk disclosure.