William Henry Platt
Advisor at Momentum Advisors — New York, NY
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
CFP®, Series 63
Experience Industry experience
23 years
Location
New York, NY 10036
Momentum Advisors
Team
Total advisors
6Clients per advisor
59 TypicalAvg AUM per client
$992,615 TypicalHNW client ratio
38% TypicalWilliam Platt is a CFP® with 23 years of industry experience. He has been with Momentum Advisors since 2014 and previously worked at Farther. Outside of his advisory work, he serves as a varsity secondary football coach at St. Anthony's School in Melville, NY. Momentum Advisors is a registered investment adviser that provides wealth management, financial planning, and portfolio management services to individuals, families, trusts, charitable institutions, foundations, pension plans, and small businesses. The firm emphasizes customized portfolio construction and ongoing monitoring, using mutual funds, ETFs, and third-party managers.
Based on Momentum Advisors
Based on Momentum Advisors
Fixed fees for standalone financial planning services, negotiated per engagement
$0 - $999,999: 1% $1,000,000 - $1,999,999: 0.90% $2,000,000 - $4,999,999: 0.70% $5,000,000 - $9,999,999: 0.60% $10,000,000 - $24,999,999: 0.55% $25,000,000+: 0.50%
Performance-based fees charged for private pooled investment fund managed by the Firm; terms disclosed in fund offering documents
Account minimum: $250,000 Minimum fee: $3,000 minimum annual fee for investment management services Fee-only: Financial planning standalone fixed fees are negotiated based on scope and complexity; consulting fees typically around $1,000 per month, but negotiable
New York, NY
1120 Avenue of the Americas, 4th Floor
New York NY 10036
Advisors at this office
6
New York · North Carolina · Texas · Virginia
23 years of industry experience
Farther
2026 - Present • 1 year
Dix Hills, NY
Momentum Advisors
2014 - 2026 • 12 years
New York, NY
American Portfolios Advisors, Inc
2010 - 2014 • 4 years
Holbrook, NY
Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.
A client's investment-related complaint, arbitration or lawsuit, including ones that were denied, withdrawn or settled.
Is active or affiliated with:
Insurance agent
They sell insurance products and may earn commissions on those sales.
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:
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.
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 introductions are provided by FinanceHQ LLC (“FHQ”), a wholly-owned subsidiary of Warmer and an SEC-registered investment advisor. We receive compensation from certain participating advisors for introductions or referrals. This creates a conflict of interest because we have an incentive to recommend advisors who compensate us, including those who pay us more. You pay no fee to use our matching service, and advisor fees are not increased because of a referral or introduction. We do not review the ongoing performance of advisors, manage or hold assets, guarantee performance, or provide advice about specific investments.
By using our service, you agree to our Terms of Service and Advisory Agreement, and acknowledge our Privacy Policy. Please review FHQ’s ADV Part 2A and Form CRS. Logos provided by Logo.dev
© 2026 Warmer Holdings Inc. (“Warmer”)