Is Monex better than SoFi Invest?

Based on our independent rating system, Monex edges out SoFi Invest with a score of 3.4/5 compared to 3.3/5. Monex's advantage comes from its broader market access, dual regulatory licensing, and zero minimum deposit requirement. That said, SoFi Invest remains a solid choice for traders who specifically want a commission-free US-based platform, so the right pick depends on your individual trading priorities.

Which broker offers lower trading costs, Monex or SoFi Invest?

Both brokers advertise spreads starting from 0 pips, so on the spread side they are evenly matched. However, Monex applies a small flat commission of $0.5 per lot, while SoFi Invest charges no per-trade commission at all. Depending on your trading frequency and lot sizes, SoFi Invest could work out cheaper for very active small-scale traders, while Monex's broader market access may offset the modest commission for diversified investors.

How much money do I need to start trading with Monex versus SoFi Invest?

Monex requires no minimum deposit at all, making it one of the most accessible options for new traders with limited starting capital. SoFi Invest requires just $1 to open an account, which is also very low. In practice, both brokers remove nearly all financial barriers to entry, so this factor is unlikely to be the deciding one for most traders.

Which broker is more trustworthy in terms of regulation, Monex or SoFi Invest?

Monex holds licences from both Japan's FSA and the US SEC, giving it two layers of tier-1 regulatory oversight. SoFi Invest, by comparison, is regulated solely by the SEC. While both regulators are highly respected, Monex's dual-licence structure gives it a slight edge in our assessment of overall regulatory robustness.

What trading platforms can I access with each broker?

Monex offers three platforms: Proprietary Web, Proprietary Mobile, and the more advanced TradeStation JP terminal. SoFi Invest offers two platforms: Proprietary Web and Proprietary Mobile. Traders who want access to a professional-grade charting and execution environment may lean toward Monex because of its TradeStation JP option.

Which markets can I trade with Monex compared to SoFi Invest?

Monex covers a wider range of asset classes, including stocks, ETFs, crypto, and forex. SoFi Invest focuses on stocks, crypto, and indices, but does not offer forex or ETF trading. Traders who want a single account for multi-asset diversification, including currency pairs, will find Monex's offering more comprehensive.

Can I use both Monex and SoFi Invest at the same time?

Yes, there is nothing stopping you from opening accounts with both brokers simultaneously. Many traders choose to diversify across multiple platforms to take advantage of different market access, fee structures, and platform tools. This can be a smart strategy if you want Monex's forex and ETF access alongside SoFi Invest's commission-free US stock and crypto trading.

Which broker offers higher leverage, Monex or SoFi Invest?

Monex offers maximum leverage of up to 1:3, while SoFi Invest caps leverage at 1:1, meaning no leverage is applied beyond the capital deposited. For traders who want to use modest leverage to amplify position sizes, Monex provides more flexibility, though neither broker offers the high leverage ratios sometimes seen at dedicated forex-focused brokers.

Which broker has been in operation longer, Monex or SoFi Invest?

Monex was founded in 1999 and is headquartered in Tokyo, Japan, giving it over two decades of operating history. SoFi Invest was founded in 2012 and is based in San Francisco, USA, making it a newer entrant in the fintech investing space. Monex's longer track record may appeal to traders who prioritize institutional longevity, while SoFi Invest's newer platform may appeal to those wanting a modern fintech-first experience.

Are there any deposit or withdrawal fees with Monex or SoFi Invest?

Neither broker charges deposit or withdrawal fees, making funding and cashing out equally cost-free at both platforms. This is a point of parity between the two brokers and should not factor heavily into your decision-making process.

Reviewed by Experts Updated 9/20/2026

Monex vs SoFi Invest: Which Broker Wins in 2026?

Choosing between Monex and SoFi Invest comes down to market breadth versus simplicity. Monex edges ahead with a 3.4/5 rating, zero minimum deposit, and dual regulation, while SoFi Invest counters with commission-free trades and an ultra-low entry point.

OVERALL WINNER

Monex

3.4 / 5Score: 3 / 4

Monex delivers a rare combination of zero minimum deposit, multi-market access, and dual tier-1 regulation for traders who want flexibility without upfront capital barriers.

Min deposit: $0
Max leverage: 1:3
Spread from: 0 pips
Regulators: FSA, SEC

SoFi Invest

3.3 / 5Score: 1 / 4

SoFi Invest appeals to US-based traders who want a simple, commission-free entry point into stocks, crypto, and indices with a familiar fintech app experience.

Min deposit: $1
Max leverage: 1:1
Spread from: 0 pips
Regulators: SEC

Our #1 Pick Right Now: AvaTrade

Same category, top-tier regulation, and it's currently accepting new traders.

See What Makes It Different

Overall Winner

Monex

Best for Beginners

Monex

Lowest Fees

Monex

Top Regulation

Monex

Full comparison Fees & Accounts Pros & cons Verdict Summary FAQ

Side-by-side comparison

Core features compared head-to-head.

Feature	M Monex	SI SoFi Invest
Overview
Rating	3.4 / 5	3.3 / 5
Founded	1999	2012
Headquarters	Tokyo, Japan	San Francisco, USA
Regulation	FSA, SEC	SEC
Fees & Limits
Min Deposit	$0	$1
Spreads From	0 pips	0 pips
Commission	$0.5/lot	None
Max Leverage	1:3	1:1
Platforms & Markets
Trading Platforms	Proprietary Web, Proprietary Mobile, TradeStation JP	Proprietary Web, Proprietary Mobile
Markets Offered	Stocks, Etf, Crypto, Forex	Stocks, Crypto, Indices

Trading & non-trading fees

Min Deposit

Monex

SoFi Invest

Spreads From

Monex

0 pips

SoFi Invest

0 pips

Commission

Monex

$0.5/lot

SoFi Invest

None

Deposit Fees

Monex

None

SoFi Invest

None

Withdrawal Fees

Monex

None

SoFi Invest

None

Pros & cons

Monex

Pros

Carries a higher overall rating of 3.4/5 compared to close competitors
No minimum deposit makes it accessible to traders at any capital level
Offers leverage up to 1:3, higher than many comparable brokers
Backed by two respected regulatory bodies, adding a layer of trust and oversight
Broader market selection covering forex in addition to stocks, ETFs, and crypto
Access to three distinct platforms, including the professional-grade TradeStation JP
Transparent fee structure with no hidden deposit or withdrawal charges

Cons

Leverage of 1:3 is still relatively low compared to dedicated forex brokers offering much higher ratios
Charges a per-lot commission of $0.5, whereas some competitors advertise zero commission
Long history since 1999 comes with a more traditional platform feel compared to newer fintech-first apps
Being headquartered in Tokyo may add a layer of unfamiliarity for traders more comfortable with US-based firms
Three separate platforms could feel fragmented for traders who prefer a single unified app experience

SoFi Invest

Pros

No per-trade commission, which can reduce costs for frequent small trades
Extremely low minimum deposit of $1 makes it very accessible
Simple two-platform setup that is easy for beginners to navigate
No deposit or withdrawal fees keep funding transactions cost-free
Backed by SEC regulation, a respected tier-1 US regulatory body

Cons

Lower overall rating of 3.3/5 compared to close competitors
Maximum leverage capped at 1:1, limiting opportunities for leveraged strategies
Regulated by only a single body (SEC), offering less layered oversight than multi-licensed brokers
No forex or ETF market access, narrowing the range of tradable instruments
Fewer platform options, lacking a dedicated professional-grade terminal like TradeStation JP

Our expert verdict

Editor's verdict

Overall winner Monex

Lowest fees Monex

Best regulation Monex

Better for beginners Monex

Monex claims the win in this matchup, scoring 3.4/5 against SoFi Invest's 3.3/5 on our independent rating scale. The deciding factors are Monex's zero minimum deposit, broader multi-asset market access including forex, dual tier-1 regulation, and higher available leverage. SoFi Invest still holds appeal for US-focused traders who prioritize a commission-free structure and an ultra-low $1 entry point, but for most traders seeking a well-rounded, cost-transparent broker, Monex is the stronger overall pick.

Regulation & Safety

Monex operates under dual tier-1 regulatory oversight, holding licences from Japan's Financial Services Agency (FSA) and the US Securities and Exchange Commission (SEC). This dual-licence structure gives traders added confidence that their funds and trading activity are monitored by two separate, well-respected regulatory frameworks.

SoFi Invest, in contrast, is regulated solely by the SEC. While the SEC is a highly credible tier-1 regulator, having only one licensing body means SoFi Invest offers a single layer of oversight rather than the layered protection Monex provides.

For traders who place a premium on regulatory redundancy, Monex holds a clear advantage in this category. This is one of the key reasons Monex earns our 'Best for Regulation' award in this comparison.

Fees, Spreads & Commissions

Both brokers advertise spreads starting from 0 pips, putting them on equal footing at the headline level. Where they diverge is in commission structure: Monex charges a modest flat fee of $0.5 per lot, while SoFi Invest charges no per-trade commission whatsoever.

For high-frequency traders executing many small trades, SoFi Invest's zero-commission model could translate into meaningful savings over time. However, Monex's low flat-rate commission is still competitive and is offset by its broader market access and additional platform tools.

Neither broker charges deposit or withdrawal fees, so funding and cashing out remain cost-neutral at both platforms. Overall, fee-conscious traders focused purely on commissions may lean toward SoFi Invest, while those who value the full package may find Monex's modest fee justified.

Minimum Deposit & Accessibility

Monex requires no minimum deposit at all, making it exceptionally accessible for traders who want to start with limited or flexible starting capital. SoFi Invest requires a minimum deposit of just $1, which is also extremely low and removes almost any financial barrier to entry.

In practical terms, both brokers are highly accessible to beginners and small-capital traders. However, Monex's true zero-deposit requirement gives it a slight technical edge for those wanting maximum flexibility before committing any funds.

Trading Platforms & Tools

Monex supports three distinct platforms: Proprietary Web, Proprietary Mobile, and the more advanced TradeStation JP terminal. This gives traders the option to scale up to a more professional-grade environment as their needs grow.

SoFi Invest offers a simpler two-platform lineup consisting of Proprietary Web and Proprietary Mobile. This streamlined approach may appeal to beginners who prefer a clean, uncomplicated interface without additional complexity.

Traders who anticipate needing advanced charting, order types, or professional execution tools will likely find Monex's TradeStation JP option more suitable for long-term growth.

Market Access & Leverage

Monex offers access to stocks, ETFs, crypto, and forex, giving traders a genuinely diversified multi-asset account. SoFi Invest covers stocks, crypto, and indices, but notably lacks forex and ETF access.

On leverage, Monex permits up to 1:3, while SoFi Invest caps trading at 1:1 with no leverage applied. Traders seeking currency exposure or modest leverage flexibility will find Monex the more capable platform in this respect.

SoFi Invest's narrower market focus may still suit traders whose interests are strictly limited to US equities and crypto, but it is a less versatile choice for diversified, multi-asset trading strategies.

Our Verdict

Monex takes the overall win in this comparison, scoring 3.4/5 against SoFi Invest's 3.3/5 on our independent rating scale. Its combination of zero minimum deposit, dual regulation, broader market access, and higher leverage make it the stronger all-round platform for most traders.

SoFi Invest remains a credible alternative, particularly for cost-conscious US-based traders who value a commission-free structure and an ultra-low $1 minimum deposit. Ultimately, the right choice depends on whether you prioritize breadth and regulatory depth (Monex) or simplicity and zero commissions (SoFi Invest).

Verdict summary

The bottom line — category winners and our final pick based on ratings.

Editor's verdict

Monex wins overall

Monex edges out SoFi Invest overall based on our expert rating score.

Highest Rated

Monex

3.4 / 5 / 5

Category winners

Overall winner
Based on overall expert rating (3.4/5).
Monex
Better for beginners
Stronger onboarding and educational resources.
Monex
Lower trading costs
More competitive spreads and baseline commissions.
Monex
Stronger regulation
Higher trust based on tier-1 regulatory oversight.
Monex

Frequently asked questions

Risk warning: Trading CFDs and forex involves significant risk of loss and is not suitable for all investors. Please consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.