Evidence

Claims, evidence tiers, supporting sources, and formal attribution

This page catalogs every claim made across this site, mapped to evidence tier and supporting source. Consider this the appendix — the record is here for those who need to verify.

Evidence Taxonomy

TierDescriptionExamples
Tier 1Signed research, SEC filings, fund documents, recorded interviewsSEC N-1A filings, CBOE interviews, PSN ranking data
Tier 2Published materials I authoredResearch articles, white papers
Tier 3Institutional records, team communications, meeting notesInvestor day program, internal records
Tier 4Personal statementRole descriptions, system architecture claims

Claims Index

Investment Systems
ClaimTierSource
Day-to-day PM for all five ETFsTier 1SEC N-1A filings
Authored SEC filing contentTier 1SEC EDGAR
Designed portfolio construction methodologyTier 1Referenced in prospectuses
CBOE interviewsTier 1Recorded video interviews
PSN Top Guns awardTier 1PSN ranking data
Built research infrastructureTier 4Personal statement
Research
ClaimTierSource
Authored Pure Alpha researchTier 2Published articles
Authored FCF researchTier 2Published articles
FCF implemented in ETF suiteTier 1SEC filings

SEC Documents

Public filings on SEC EDGAR:

  • ABFL — N-1A, N-CSR, N-PORT
  • ABLD — N-1A, N-CSR, N-PORT
  • ABOT — N-1A, N-CSR, N-PORT
  • ABLS — N-1A, N-CSR, N-PORT
  • ABXB — N-1A, N-CSR, N-PORT

Attribution Statement

I, Vince Chen, make the following statement regarding my work at FCF Advisors (2017–2024) and Abacus FCF Advisors (2024–2026):

I was the person who designed, built, and operated the quantitative investment platform that became the firm's core investment capability. I originated the research framework, designed the portfolio construction methodology, built the investment technology infrastructure, and operated the end-to-end investment process day to day.

I was the day-to-day portfolio manager for all five ETFs — ABFL, ABLD, ABOT, ABLS, and ABXB — from my appointment through my departure.

I authored the investment strategy sections of all SEC filings (N-1A, N-CSR, prospectuses) for these funds and designed the index methodologies.

After the Abacus acquisition, I continued as portfolio manager, led the technical platform integration, trained incoming team members, and maintained uninterrupted investment operations throughout the transition.

The platform I built and operated received the PSN Top Guns Manager of the Decade award (Q4 2025).

Confidentiality Notice

This site describes what I built and what my responsibility was — not how. Proprietary implementation details — including model formulas, factor weights, scoring logic, portfolio construction algorithms, source code, data architecture, and trade execution parameters — are not disclosed.