Marcus Chen
Senior Market Analyst
Senior Market Analyst at 13F Insight. Covers institutional portfolio strategy, 13F filings, and smart money trends.
A note from Marcus
Hi, I'm Marcus. I spent six years on the buy side staring at 13F filings for a hedge fund, and the thing that bothered me most wasn't the work — it was knowing that the average investor never gets to see what I was looking at, even though it's all public.
That's why I'm here. Every research piece you'll see under my name comes from real SEC data, run through real institutional logic, and translated into something you can actually act on. I write long when the data deserves it and short when it doesn't.
If you ever spot a number that looks off, email me. I'd rather be corrected than wrong.
Articles by Marcus Chen (311)
- Research
SEI Investments’ $101B 13F Mixed Mega-Cap Stocks With ETF Sleeves
A data-first review of SEI INVESTMENTS CO's 2025Q4 13F, with emphasis on concentration and top-holder context.
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Boston Partners’ Q4 13F Was a Low-Concentration Value Map, Not a Mega-Cap Clone
A data-first review of Boston Partners's 2025Q4 13F, with emphasis on concentration and top-holder context.
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VOYA INVESTMENT MANAGEMENT LLC Q4 2025 13F: NVDA Leads a $101.45B Ownership Map
VOYA INVESTMENT MANAGEMENT LLC's 2025Q4 13F shows how NVDA, MSFT and AAPL shaped a $101.45B institutional portfolio.
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AI Capex Ownership Map: Microsoft, Alphabet, Nvidia and AMD Show Where the Crowd Already Sits
A cross-stock 13F look at how AI infrastructure news lands on already-crowded institutional ownership bases.
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Consumer Cyclical Q4 2025: Amazon and Tesla Dominated Covered Institutional Exposure
A 13F sector snapshot shows $3.02T of covered consumer cyclical institutional value, with AMZN and TSLA setting the center of gravity.
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Utilities Sector Q4 2025: Covered Holders Favored Regulated Scale
Across covered utilities names, Q4 2025 institutional value clustered around regulated utilities rather than the whole sector evenly.
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UBS AM's Q4 2025 13F Stayed Anchored in Nvidia, Microsoft and Apple
UBS AM reported $472.97B in 2025Q4 13F value, with Nvidia, Microsoft and Apple forming the portfolio's core while Meta rose modestly.
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National Bank of Canada Q4 2025: 110 New Positions Without Losing the Canadian Core
National Bank of Canada grew to $109.99B in 2025Q4, added 110 new positions, and leaned harder into U.S. growth while keeping Canadian banks near the center.
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Rhumbline Q4 2025 13F: An Index-Like Mega-Cap Spine at $124B
RHUMBLINE ADVISERS's Q4 2025 13F shows $123.69B in reported value, led by NVDA and a diversified institutional tail.
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Charles Schwab IM Q4 2025: A Mega-Cap Core, 27 New Positions, and a Quiet Netflix Surge
Charles Schwab Investment Management kept Nvidia, Apple, and Microsoft at the top in Q4 2025 while quietly ramping Netflix and ServiceNow exposure beneath the surface.
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Communication Services in 2025Q4: Institutional Ownership Stayed Hyper-Concentrated in Alphabet and Meta
Across covered large-cap communication-services names, institutional value remained concentrated in Alphabet and Meta, while Netflix, Disney and telecom incumbents formed the second tier.
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Swedbank Q4 2025 13F: Nvidia and Microsoft Lead a Larger U.S. Book
Swedbank AB's Q4 2025 13F shows $103.37B in reported value, led by NVDA and a diversified institutional tail.
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FIL Ltd Q4 2025 13F: Canadian Banks and Mega-Cap Tech Share the Book
FIL Ltd's Q4 2025 13F shows $133.60B in reported value, led by MSFT and a diversified institutional tail.
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Energy Sector Q4 2025: Covered Institutional Capital Still Ran Through Exxon and Chevron
Across covered large-cap energy names, Q4 2025 institutional value remained heavily concentrated in Exxon and Chevron, with Vanguard and BlackRock anchoring the sector map.
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Technology Sector Q4 2025: Covered Institutional Value Still Runs Through Apple, Nvidia and Microsoft
Across covered large-cap technology names, Q4 2025 institutional value still concentrated heavily in Apple, Nvidia and Microsoft, with Vanguard and BlackRock anchoring the holder base.
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Consumer Defensive Sector Q4 2025: Walmart, Costco and Staples Still Own the Shelf
Across covered large-cap consumer defensive names, institutional capital stayed concentrated in Walmart, Costco, Procter & Gamble, Coca-Cola and Philip Morris.
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Financial Services Sector Q4 2025: Card Networks and Big Banks Set the Pace
Visa, Mastercard and JPMorgan anchor the covered institutional book in financial services, with Berkshire still standing out through BAC and AXP.
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Healthcare Sector Q4 2025: Lilly Dominates the Covered Institutional Book
Across covered large-cap healthcare names, Eli Lilly accounts for the single largest pool of institutional value in 13F data for 2025Q4.
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Victory Capital Q1 2026 Preview: The $177B Portfolio’s Biggest New Push Was Not Just Nvidia
Victory Capital kept mega-cap tech on top in Q4 2025, but the sharper signal was in the secondary moves: large increases in Netflix, Constellation Energy, TSMC and new positions like IQVIA. The next filing will show whether that diversification continues.
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Raymond James Q1 2026 Preview: ETFs, XLK and XLE Are Telling the Story in a $321B Portfolio
Raymond James used Q4 2025 to keep broad ETF exposure high through VOO, AGG, SPY and IEFA while also adding to sector sleeves such as XLK and XLE. The next filing will show whether that balanced ETF-heavy structure remains the preferred setup.