SoFi Invest
Capital Index
VS
Higher Rated
SoFi Invest
Capital at risk · T&Cs apply
Choosing between SoFi Invest and Capital Index depends on your trading style, preferred markets, and budget. SoFi Invest is headquartered in San Francisco, USA, while Capital Index operates from London, UK. SoFi Invest has the longer track record, established in 2012, 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.
SoFi Invest
Capital Index
SoFi Invest is the better choice overall, scoring 3.3/5 vs 3.2/5 on BrokerRank's independent rating. On fees, SoFi Invest offers lower spreads (0 pips).
See full side-by-side comparison belowOverall Rating
SoFi Invest
3.3 vs 3.2
Lowest Fees
Tied
0 vs 0 pips
Regulation
Tied
1 vs 1 licences
Min. Deposit
SoFi Invest
$1 vs $100
SoFi Invest
WinnerCapital Index
SoFi Invest
Lower feesCapital Index
SoFi Invest holds licences from SEC. Capital Index is regulated by FCA.
Both brokers offer access to Crypto, Indices markets. SoFi Invest additionally covers Stocks. Capital Index adds Forex, Cfd, Commodities.
SoFi Invest supports Proprietary Web, Proprietary Mobile. Capital Index offers MT4, MT5.
SoFi Invest requires a minimum deposit of $1, while Capital Index sets a minimum deposit of $100. Both are suitable for traders with moderate starting capital.
BrokerRank scores SoFi Invest at 3.33/5 and Capital Index at 3.21/5, based on 50+ data points covering regulation, fees, platforms, markets, and user experience. SoFi Invest leads overall with a clear advantage.
SoFi Invest scores higher overall on our independent rating system. SoFi Invest holds a 3.3/5 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.
SoFi Invest offers spreads from 0 pips, while Capital Index starts at 0 pips. Check the fees section above for a full breakdown.
SoFi Invest requires a minimum deposit of $1. Capital Index requires $100.
SoFi Invest is regulated by SEC, while Capital Index holds licences from FCA.
SoFi Invest 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.
Only 26% of Brokers Are Truly Fee-Free
BrokerRank Research — Hidden costs across 345 brokers
58% of Brokers Hold a Single Licence
BrokerRank Research — Regulation quality analysis
71% of Retail Traders Lose Money
BrokerRank Research — Loss rates across 50 EU brokers
76% of Brokers Use Proprietary Platforms
BrokerRank Research — MT4 vs MT5 vs proprietary
Trading involves risk. Past performance is not indicative of future results. Capital at risk. Full risk disclosure.