Once you graduate from the beginner apps — moomoo, Tiger, Webull — the Singapore broker landscape narrows fast. Two names dominate the "serious retail" conversation: Interactive Brokers and Saxo Markets. Both are properly regulated, both offer global market access from one account, both cost meaningfully more attention to set up than a mobile-first app. And they represent two opposite theories of what a premium broker should be.

IBKR is what you get when engineers build a broker for other engineers. Saxo is what you get when a Danish investment bank builds a retail trading platform. Both are excellent. Which one is right for you comes down to trade frequency, product mix, and how much you value experience over raw cost.

Who Built Each And Why It Matters

Interactive Brokers was founded in 1978 by Thomas Peterffy, a Hungarian-born programmer who wrote the first electronic options pricing system on a handheld computer he sneaked onto the American Stock Exchange floor. That engineering DNA still defines the firm. IBKR runs the lowest cost base in the industry, passes those savings through as some of the tightest spreads and commissions available to retail traders, and treats the platform as a professional tool rather than a consumer product.

Saxo Bank was founded in 1992 in Copenhagen by Kim Fournais and Lars Seier Christensen as one of Europe's first online trading platforms. It became a fully licensed bank in 2001, and today serves clients in over 170 countries. Saxo's positioning has always been "the trading platform of the private bank" — global reach, wide product breadth, and a user experience that feels closer to Bloomberg than to Robinhood. In September 2025, Fournais [stepped down as CEO to chair the board](https://www.home.saxo/en-sg/about-us/media-center), with Daniel Belfer (previously CEO of Bank J. Safra Sarasin) taking over as CEO — a transition that reinforces Saxo's ongoing pivot toward high-net-worth and institutional clientele.

Fee Comparison: Where IBKR Runs Away With It

On US stocks, both brokers list a US$1 minimum per trade, but the mechanics differ. IBKR charges [US$0.005 per share on the Tiered plan with the same US$1 minimum](https://www.interactivebrokers.com.sg/en/pricing/commissions-home.php). Saxo charges [0.08% of trade value on the Classic tier, with a US$1 minimum](https://wise.com/sg/blog/saxo-review-singapore). On a US$10,000 US stock trade, IBKR would cost around US$5 (100 shares at US$100 = US$0.50, well below the minimum, so US$1); Saxo Classic would cost US$8. The gap widens as trades get larger.

US options is where the gap becomes decisive. IBKR is US$0.65 per contract flat with no ticket fee on the SG account — the same rate US professionals pay. Saxo's [listed options commission is US$2 per contract on Classic, dropping to US$1 on Platinum and US$0.75 on VIP](https://www.home.saxo/en-sg/rates-and-conditions/listed-options/commissions). A 10-contract iron condor cycle would cost US$26 to open and US$26 to close on IBKR (US$52 round trip). On Saxo Classic, the same cycle would cost US$80 to open and US$80 to close (US$160 round trip). Over 50 cycles a year, the annual fee difference exceeds US$5,000 — enough to fund an additional strategy.

SGX pricing is where Saxo narrows the gap. Both charge minimums around S$3-5, with commissions around 0.08%. If SGX activity is your main use case, the difference between the two is negligible.

Where Saxo Justifies Its Premium

The single biggest reason to choose Saxo over IBKR is platform experience. SaxoTraderGO (web/mobile) and SaxoTraderPRO (desktop) are consistently rated among the best-designed retail trading platforms globally. Chart tools rival TradingView. Order tickets are cleaner. Portfolio analytics are more visual. If you spend 2-3 hours a day on your platform, that quality difference compounds.

Saxo also offers products IBKR does not carry retail-side in Singapore. According to [Wise's 2026 Saxo review](https://wise.com/sg/blog/saxo-review-singapore), Saxo Singapore clients get direct access to over 40,000 stocks, 22,000 bonds, 6,900 ETFs, 200+ FX pairs, and Saxo's own portfolio management products (SaxoSelect). Bonds are the meaningful gap — IBKR offers bond trading but access to individual corporate and government bonds is far more limited for SG retail clients. Investors building fixed-income sleeves often keep a Saxo account for that reason alone.

The third Saxo advantage is service. Saxo assigns account managers to clients above certain thresholds (typically S$200,000+ in AUM for Platinum tier, S$1,000,000+ for VIP). IBKR does not do relationship management for retail; support is ticket-based and functional but generic. For clients who expect a phone call from a named account manager when something breaks, this matters.

Where IBKR Justifies Being Colder

IBKR's counter-pitch is simple: everything Saxo charges you extra for, IBKR passes through at cost. The cost saving is not marginal — on active portfolios it can approach 1% of AUM per year. That is enormous over a decade of compounding.

IBKR also has genuinely better tools for specific use cases. Currency conversion is around 0.03% (about 6-10x cheaper than Saxo's FX spreads). Margin rates are the lowest in the industry — typically SOFR + 1.5% versus Saxo's SOFR + 2.5-3%. And for anyone running complex options strategies (iron condors, calendar spreads, ratio spreads), IBKR's Order Entry Tool and RiskNavigator are professional-grade risk analytics that Saxo does not match.

The API story also matters. IBKR's TWS API is the industry standard for retail algo trading — well-documented, mature, and used by thousands of independent developers. Saxo has an OpenAPI, but the developer ecosystem is smaller and less community-supported.

The Regulatory Comparison

Both brokers are properly regulated in Singapore. IBKR Singapore Pte. Ltd. holds MAS Capital Markets Services Licence No. CMS100917. Saxo Capital Markets Pte. Ltd. holds CMS100029 and has been MAS-regulated since 2006. Both segregate client assets in trust accounts.

The differences show up at the parent level. Saxo Bank A/S is a Danish-licensed bank supervised by the Danish Financial Supervisory Authority, and client cash at the bank level is covered by the Danish Deposit Guarantee Scheme up to EUR 100,000. IBKR is a US broker-dealer with SIPC protection up to US$500,000 (including US$250,000 for cash claims) at the group level, though the Singapore entity itself operates under MAS rules. For most SG retail clients, both structures are equivalent in practice. Custody risk is minimal at either.

The Six-Question Framework

One, how active are you? Under 10 trades a month, fees barely matter; pick on experience. Over 50 trades a month, fees dominate; IBKR wins on cost math alone. Two, do you trade US options as a core strategy? IBKR wins by a mile — the US$1.35 per contract difference (Saxo Classic minus IBKR) compounds enormously across income strategies. Three, do you need bonds, mutual funds, or structured products? Saxo wins — the product breadth is real. Four, how much do you value platform polish? Saxo wins — the UX gap is genuine. Five, are you SGX-focused? Both are competitive; neither is clearly superior. Six, do you have multi-currency capital (say, a mix of USD, EUR, SGD, HKD)? IBKR wins on FX conversion cost; Saxo wins on multi-currency account flexibility.

The Verdict

If your primary use case is US options and stock trading, and you place 20+ orders a month, choose IBKR. The fee savings alone will pay for a year of coffee. You will trade off a less polished experience, and you will spend two hours learning the platform, but the annual math is decisive.

If your portfolio spans stocks, bonds, and structured products, and you value premium service and clean UX over squeezing every basis point of cost, choose Saxo. The Platinum tier (S$200,000+ AUM) meaningfully closes the fee gap, and the platform experience genuinely justifies the premium for many investors.

Active options traders on smaller accounts (under S$200,000) should not overthink this — IBKR is the clear default. Multi-asset investors above that threshold have a real decision to make. Some Next Level members hold both: IBKR for active US options and stocks, Saxo for bonds, funds, and account management. That combination captures the best of each without forcing a compromise.

Together, Next Level