William W. Peng
Investment Adviser Representative at Capital Markets IQ, LLC
Professional summary
Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.
William W. Peng is an investment adviser representative with Capital Markets IQ, LLC in Sudbury, MA, where they have been registered since 2020. They have worked in the securities industry since 2012 and have been registered with 4 firms, including SA Stone Investment Advisors Inc. and Quest Capital Strategies, Inc. They have passed 3 industry qualification exams, including the Series 66 (combined investment adviser and state securities agent) and Series 7 (general securities representative). They are registered to provide investment advice in Massachusetts.
Registrations & licenses
- Investment adviser:
- Massachusetts
Registration requirements vary by state and service. Contact the advisor's firm to confirm whether they can serve you.
Financial-firm registration history
Registration history as reported to FINRA, most recent first.
Reported employment history
Employment the advisor reported on their SEC/FINRA filings, as of October 8, 2026. It may not be a complete history.
- Avivant, LLCDec 2007 – no end date reportedBoston, MA
- Y & Z Fidelity RealtyFeb 2013 – no end date reportedWest Roxbury, MA
- Avivant (Nanjing) Information Technologies Co Ltd ChinaMar 2015 – no end date reportedSudbury, MA
- Suffolk University Sawyer Business SchoolJan 2016 – no end date reportedBoston, MA
- Capital Markets IQApr 2016 – Mar 2018Wilmington, DE
- APPS AssociatesJun 2016 – Sep 2017Acton, MA
- Independent Insurance Agent - Massachusetts LIFEJan 2017 – Oct 2025Sudbury, MA
- SA Stone Wealth Management Inc.Dec 2019 – Aug 2020Birmingham, AL
- SA Stone Investment Advisors Inc.Dec 2019 – Aug 2020Birmingham, AL
- Capital Markets IQAug 2020 – no end date reportedWilmington, DE
- Millennial PharmaceuticalOct 2020 – Dec 2024Cambridg, MA
Official records & sources
Data as of August 10, 2026 · Source: SEC IAPD & FINRA BrokerCheck
About Capital Markets IQ, LLC
These details describe the firm overall. Individual advisors' services, clients, and fees may differ.
Fee arrangements the firm reports
- Percentage of assets under management
- Hourly
- Fixed fee
- Performance-based fees
- Firm account minimum
- $100,000
Arrangements the firm reports on its Form ADV; this advisor may not charge every fee listed. Estimated from the firm's Form ADV — individual terms may differ. Not a quote.
Services the firm offers
Unknown
Client types the firm serves
Unknown
Firm assets under management
Unknown
- Firm disclosures (Form ADV)
- Unknown
Source: firm Form ADV filing
Similar advisors in Sudbury, MA
Other advisors whose filed branch office is in the same city.
This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. William W. Peng 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 BrokerCheck or SEC.gov before making any decision. AdvisorFinder may be compensated for referrals generated through this page.
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.
Find the right advisor for you
Take the free 3-minute assessment to get matched with advisors who fit your goals.
Get Matched