Stash vs Interactive Brokers Comparison: Fees, Features, and More (2026)

Stash and Interactive Brokers are two leading discount brokerages offering commission-free stock and ETF trading. Use this head-to-head comparison table to evaluate fees, features, trading tools, and account options to help you decide which broker is right for you in 2026.

Head-to-Head Comparison: Stash vs Interactive Brokers (2026)
Feature Stash Interactive Brokers
Website https://www.stash.com/ https://www.interactivebrokers.com/
Broker Type Subscription-based digital brokerage Self-directed online discount broker
Trading: Stock & ETF? Yes Yes
ETF & Stock commission $0 trade commission; $12/month subscription plan IBKR Lite: $0 US-listed stocks/ETFs (US residents); IBKR Pro: $0.005/share fixed (min $1) or $0.0005–$0.0035/share tiered (min $0.35)
Fractional Shares? Yes Yes (eligible US/CA/EU stocks & ETFs, from $1)
Percent Allocations? No Yes (TWS Rebalance Portfolio sets custom target %)
Crypto Trading? No (crypto ETFs only) Yes (spot crypto via Paxos/Zero Hash for eligible US IB LLC clients; permissions required; also futures/ETPs)
Crypto Fees Not applicable 0.12%–0.18% of trade value (monthly volume tiers), USD 1.75 min/order (capped at 1% of value); no added spreads/markups/custody fees; possible $0.15/mo Paxos fee
Options Trading? No Yes
Options Fee Not applicable US: Lite $0.65/contract ($1 min; Pro rates after 1k contracts/mo); Pro $0.15–$0.65/contract (volume/premium tiers), $1 min/order + exchange/reg/clearing fees
Bond Trading Available? No Yes (US Treasuries, corporates, munis, CDs, 1M+ global bonds)
Receives payment for order flow (PFOF)? Yes Sometimes (Lite receives PFOF on US stocks/options; Pro generally avoids via SmartRouting)
Interface: Web trading? Yes Yes (Client Portal web; IBKR Mobile and GlobalTrader apps)
Desktop trading? No Yes; Trader Workstation (TWS) and IBKR Desktop.
API Trading? No Yes; TWS API and Web API for retail algorithmic trading.
Mutual Funds: Offered? No Yes
Total Mutual Funds None 50,000+
NTF Mutual Funds None 20,000+
Non-NTF Fund Fee Not applicable Lesser of 3% of trade value or USD 14.95 per transaction (US).
Early Redemption Fee? Not applicable Yes (no IBKR fee); fund companies may charge per prospectus.
Redemption Hold (Days) Not applicable None by IBKR (0 days); fund prospectus may impose.
Early Redemption Fee Not applicable $0 from IBKR; funds may charge per prospectus.
Accounts: Margin Accounts? No Yes (Cash, Margin, or Portfolio Margin; typically $2,000 equity for margin).
IRAs Offered? Yes; Traditional and Roth Yes (Traditional, Roth, SEP, SIMPLE, Inherited, Rollover).
HSAs Offered? No No
Money Market Sweep? Yes; Apex FDIC-insured sweep Yes (Insured Bank Deposit Sweep Program).
CDs Offered? No Yes (brokered CDs).
Robo-Advisor: Offered Yes Yes
Robo-Advisor Service Smart Portfolio Interactive Advisors
Robo-Advisor Fees $12/month plan; 0.25% of managed balance quarterly (>= $1,000) 0.10%–0.75% AUM/year (varies by portfolio; IA 0.10%–0.20%, managers 0.25%–0.75%); no commissions
Basics: Headquarters New York, NY Greenwich, CT
Year Founded 2015 1977
Clearing Firm Apex Clearing Self-clearing
Local Branches? No No
New Account Minimum $0

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