BIG Sioux Wealth Management
SEC RegisteredFINANCIAL FREEDOM BUILT ON TRUST & SIMPLICTY
About the firm
Big Sioux is a locally owned, independent RIA firm located in Watertown and Sioux Falls, South Dakota. They serve clients in a fiduciary capacity, obligated to put client interests first in all recommendations. They serve families, individuals, small business owners, healthcare professionals, people who have come into sudden wealth, and retirees.
Firm Focus
Client segments reported on the firm's SEC Form ADV — applies to all advisors at the firm.
Areas of expertise
Services
Financial advisory services provided in a fiduciary capacity, serving South Dakota and beyond with objectivity, transparency, and independent investment guidance
Who they serve
Families, individuals, small business owners, healthcare professionals, people who have come into sudden wealth, and retirees
Leadership
Office locations
Advisors at this firm
5 advisors in the directory
Regulatory & compliance
| Asset tier | Annual rate |
|---|---|
| Under $100,000 | 1.45% |
| $100,001 - $200,000 | 1.35% |
| $200,001 to $500,000 | 1.10% |
| $500,001 to $750,000 | 1.05% |
| $750,001 to $1,000,000 | 0.90% |
| $1,000,001 to $3,000,000 | 0.80% |
| $3,000,001 to $6,000,000 | 0.70% |
| Over $6,000,001 | 0.65% |
Data as of February 27, 2026 · Source: SEC IAPD & FINRA BrokerCheck
Contact Information
This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. BIG Sioux Wealth Management has not reviewed, approved, or endorsed this profile and is not responsible for its accuracy. Regulatory records change over time — always verify the current record directly on the SEC or FINRA websites before making any decision.
BrokerCheck data is used subject to the FINRA BrokerCheck Terms of Use. Found something inaccurate? Report inaccurate data and we will correct any error we introduced. Errors in the underlying BrokerCheck record itself are referred to FINRA, which maintains that record.
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