Research
Research library
Research worth an advisor's time from research firms, asset managers, regulators, central banks, academics and think tanks, each with a short summary in our own words, plus AdvisorIQ's own analysis.
As of Oct 8, 2026, the library lists 9 pieces on portfolio construction.
Titles marked with an arrow open on the publisher's site. How we choose.
Portfolio construction
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Portfolio Rebalancing: All at Once or Little by Little? (opens dimensional.com)
Dimensional tests whether it matters how quickly a portfolio is traded back to target once a rebalance is triggered. Across hypothetical 60/40 portfolios from 1989 to 2025, spreading trades over several days produced returns within 4 basis points of trading at once, with lower turnover.
Topic: Portfolio constructiondimensional.com
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Exponential Wealth: Centuries of Stock and Bond Returns (opens rpc.cfainstitute.org)
A long-horizon study of stock and bond returns that updates a classic US market history through 2025 and adds earlier and global data. From 1926 to 2025, $1 in US large-cap stocks grew to $14,751, and the book shows how reinvested income, diversification, costs and inflation decide how much of that investors keep.
Topic: Portfolio constructionrpc.cfainstitute.org
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Welcome Back, Balanced Portfolio (opens pimco.com)
PIMCO argues that higher bond yields, about 5% on the broad US bond index in September 2026, have restored bonds' role as both an income source and a diversifier next to stocks. It explains why 2022 is the wrong baseline for judging bonds as a hedge, and notes that household stock allocations are at a record high.
Topic: Portfolio constructionpimco.com
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Active Fund Manager Success Rates Ticked Up in 2026, but Passive Funds Still Hold the Advantage (opens morningstar.com)
The midyear Active/Passive Barometer measures how active US funds fared against passive peers in their categories. Just over 40% of active funds survived and beat their passive composite in the year to June 2026, up 7 percentage points, and the cheapest active funds had better odds in most categories.
Topic: Portfolio constructionmorningstar.com
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The Winning Formula for Fund Investors, and Why Others Left Money on the Table (opens morningstar.com)
Morningstar's annual investor-return study compares what the average dollar in US funds earned with the funds' own returns over the decade through 2025. Investors earned 8.7% a year, about 1.2 percentage points less than the funds, with the widest gaps in more volatile funds and the smallest in allocation funds.
Topic: Portfolio constructionmorningstar.com
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Total Portfolio Approach: A Critical Literature Review (opens rpc.cfainstitute.org)
A review of academic and practitioner research on the total portfolio approach, which manages a fund as one integrated portfolio instead of fixed asset-class buckets. The authors find it is mainly a governance discipline rather than a set of tools, and that the evidence does not show it reliably produces higher returns.
Topic: Portfolio constructionrpc.cfainstitute.org
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Financial Reporting Frequency and Market Premiums (opens dimensional.com)
Prompted by the SEC's proposal to allow semiannual reporting, Dimensional asks whether reporting frequency affects the equity, size, value and profitability premiums. US history since 1926 and a comparison of 42 markets with different reporting rules show no reliable link.
Topic: Portfolio constructiondimensional.com
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Our take on total portfolio approach (opens blackrock.com)
BlackRock answers common questions about the total portfolio approach and how it differs from a static strategic allocation. It argues that big portfolio decisions should be revisited often against a reference portfolio, with risk budgeted across the whole portfolio and public and private markets considered together.
Topic: Portfolio constructionblackrock.com
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2026 Capital Market Assumptions for Major Asset Classes (opens aqr.com)
AQR's annual estimates of medium-term expected real returns for major asset classes, based on valuations at the end of 2025. It puts the expected real return of a global 60/40 portfolio at 3.4%, above the 2021 low but well below the long-run US average of nearly 5%, and adds guidance on currency hedging in return assumptions.
Topic: Portfolio constructionaqr.com
From AdvisorIQ
We have not published any articles of our own yet. When we do, they will be listed here, newest first, with the author and date on every piece.
Editorial
How we choose
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