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Broker Comparison

Alpaca Trading vs SigFig

Compare Alpaca Trading and SigFig side by side: fees, regulation, platforms.

Alpaca Trading

Alpaca Trading

API-driven and algorithmic traders

Alpaca Trading is a US API-first broker offering commission-free stocks, ETFs, options and crypto trading wit…

VS
SI

SigFig

Low-cost automated portfolio investors

SigFig is a US robo-advisor offering automated ETF portfolios, tax-loss harvesting, and free human advisor ac…

Head-to-head comparison

Alpaca Trading vs SigFig
Feature Alpaca Trading SigFig
Minimum deposit - -
Stock trading fee Commission: Free for self-directed retail API accounts; SEC fee and FINRA TAF pass-through on sell transactions -
Regulators FINRA, SIPC, FinCEN SEC
Best for API-driven and algorithmic traders Low-cost automated portfolio investors
Markets & account
Stocks
-
ETFs
Crypto
-
Bonds
-
Options
-
Fractional Shares
Margin
-
Demo Account
-
Funds
-
Ready Made Portfolios
-

Pros & cons

Alpaca Trading

Alpaca Trading

Pros

  • Commission-free stocks, ETFs and options for self-directed retail API accounts
  • Paper trading environment available at no cost
  • Fractional shares supported
  • 24/5 extended trading hours on 100+ US stocks
  • Multi-leg options strategies supported
  • FINRA/SIPC member with up to $500,000 SIPC protection
  • Margin available at 4x intraday and 2x overnight
  • Securities lending program with potential income for shareholders

Cons

  • Platform is primarily API-driven; web and mobile apps are available but offer fewer features than conventional retail brokerage interfaces
  • Crypto accounts are not protected by FDIC or SIPC
  • Domestic wire withdrawals cost $25; international wires cost $50
  • Outbound ACATS transfer costs $100
  • Not suited for investors who prefer a full-featured retail brokerage app
  • Commission-free status may not apply to accounts opened through business partners
SI

SigFig

Pros

  • No advisory fee on first $10,000 managed
  • 0.25% annual fee is in line with leading robo-advisors
  • Free access to human investment advisors
  • Automatic rebalancing included
  • Tax-loss harvesting included
  • Low underlying ETF expense ratios (0.07%-0.15%)
  • No deposit, withdrawal, or rebalancing fees
  • Assets held at established custodians (Schwab, Fidelity) with SIPC protection

Cons

  • $2,000 minimum is higher than some competitors (Betterment has no minimum, Wealthfront starts at $500)
  • No cash management or savings account
  • No demo account to test the platform before investing
  • Fractional shares only available through dividend reinvestment, not initial purchases
  • Limited portfolio customization - model portfolios focused on ETFs and funds
  • No crypto investing
  • Company announced rebrand to Tandems in September 2025; long-term consumer product direction is uncertain
Alpaca Trading

Alpaca Trading

Alpaca Trading is a US API-first broker offering commission-free stocks, ETFs, options and crypto trading with a paper trading environment and margin accounts.

Visit Alpaca Trading Read review

Your capital is at risk. Other fees apply.

SI

SigFig

SigFig is a US robo-advisor offering automated ETF portfolios, tax-loss harvesting, and free human advisor access, with no fee on the first $10,000 managed.

Visit SigFig Read review

Your capital is at risk. Other fees apply.

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