William D Olesinski
Advisor at Fidelity — Campbell, CA
Data sourced from SEC public records (and other sources when available). Some details may be added by the advisor after claiming their profile. Refreshed daily • Updated today.
Data sourced from SEC public records (and other sources when available). Some details may be added by the advisor after claiming their profile. Refreshed daily • Updated today.
Credentials
Series 63, Series 66
Experience Industry experience
7 years
Location
Campbell, CA
Fidelity
Institution
William Olesinski is a financial advisor at Fidelity with Series 63 and Series 66 licenses and seven years of industry experience. His work history includes roles at Fidelity Investments, Fidelity Brokerage Services LLC, Bank of America, Merrill, JPMorgan Chase Bank, J.P. Morgan Securities, and Health IQ. Outside of finance, he was involved with The Patio at Rudy's for seven years. He is part of Strategic Advisers LLC, a Fidelity Investments company that provides investment management and advisory services to retail and institutional clients. The firm uses a blend of fundamental research, quantitative analysis, and algorithmic portfolio construction to manage discretionary and non-discretionary portfolios, serving a variety of client types including registered investment companies.
Based on Fidelity
Campbell, CA
Campbell CA
Advisors at this office
3
California · Texas
7 years of industry experience
Fidelity Investments
2025 - Present • 1 year
Boston, MA
Fidelity Brokerage Services llc
2021 - Present • 5 years
Palo Alto, CA
Bank Of America, N.a.
2019 - Present • 7 years
San Mateo, CA
Merrill
2019 - Present • 7 years
San Mateo, CA
JPMorgan Chase Bank, N.A.
2018 - 2019 • 1 year
Palo Alto, CA
J.P. Morgan Securities, LLC
2018 - 2019 • 1 year
Palo Alto, CA
Health IQ
2016 - 2017 • 1 year
Mountain View, CA
The Patio at Rudy's
2012 - 2019 • 7 years
Palo Alto, CA
Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.
Is active or affiliated with:
Insurance agent
They sell insurance products and may earn commissions on those sales.
Broker-dealer / trader
They provide brokerage services and may earn transaction-based compensation in addition to advisory fees.
Bank
They're affiliated with a bank that may offer its own financial products and services.
Trust company
They provide trust and estate administration services, typically for separate fees.
Fund sponsor
They manage or sponsor investment funds and may earn management or performance-based fees if clients invest in them.
Other specialized services
They may provide services such as pension consulting or municipal advisory work, typically for separate fees.
Is not active or affiliated with:
Accountant / CPA / tax prep
They offer tax and accounting services, typically for separate fees.
Lawyer
They provide legal services, typically billed separately.
Real estate agent
They facilitate real estate transactions and may earn commissions.
Not sure where to start?
We'll help you think it through—whether you ultimately need an advisor or not. Warmer helps you compare advisors clearly, so you can choose with confidence.
For advisor listings, we rely on sources including public filings and data provided by advisors, and we cannot guarantee that all information is current or accurate. Advisors are independent and may not have reviewed or updated this information. Please review an advisor's Form ADV and do your own diligence before deciding whether to work with them.
Advisor matching and referrals are provided by FinanceHQ LLC ("FHQ"), a wholly-owned subsidiary of Warmer and an SEC-registered investment adviser. We may be compensated by participating advisors. You pay no fee to use our matching service, and advisor fees are not increased because of a referral. We do not supervise advisors, manage or hold assets, guarantee performance, or provide advice about specific investments.
By using our service, you agree to the Warmer Terms of Service and FHQ Advisory Agreement, and acknowledge Warmer's Privacy Policy. Please review FHQ's ADV Part 2A and Form CRS. Logos provided by Logo.dev
© 2026 Warmer Holdings Inc. ("Warmer")