DALBAR’s Quantitative Analysis of Investor Behavior

QAIB Monthly

Introducing DALBAR's Monthly Investor Return

Since 1994, DALBAR’s Quantitative Analysis of Investor Behavior (QAIB) has tracked how investor decisions—buying, selling, and switching mutual funds—impact returns. Unlike fund performance reports, QAIB focuses on actual investor outcomes, which often fall short of market benchmarks.


The
Monthly Investor Return is an extension of the QAIB Report that examines how current events affect Investor Returns and ultimately how specific investor populations are influenced. The knowledge of how investors are influenced by recent monthly events enable advisors and managers to counsel clients and the public of appropriate actions to take as similar events repeat over time.

Find out how investors fared all year!

QAIB Monthly uses data from the Investment Company Institute (ICI), Standard & Poor’s, Bloomberg Barclays Indices and proprietary sources to compare mutual fund investor returns to an appropriate set of benchmarks.

Covering the period from December 1, 2024 to December 31, 2025, the study utilizes mutual fund sales, redemptions, and exchanges each month as the measure of investor behavior.

These behaviors reflect the “Average Investor.” Based on this behavior, the analysis calculates the “average investor return” for each month.

These results are then compared to the returns of respective indices.

The Average Equity Fund Investor is comprised of a universe of both domestic and world equity mutual funds. It includes growth, sector, alternative strategy, value, blend, emerging markets, global equity, international equity, and regional equity funds.

20252024
Average Equity Fund InvestorS&P 500DifferenceAverage Equity Fund InvestorS&P 500Difference
January3.53%2.78%0.75%0.54%1.68%-1.14%
February-1.45%-1.30%-0.15%5.06%5.34%-0.28%
March-4.93%-5.63%0.70%3.11%3.22%-0.11%
April-0.04%-0.68%0.64%-4.07%-4.08%0.01%
May5.96%6.29%-0.33%4.30%4.96%-0.66%
June4.56%5.09%-0.53%1.76%3.59%-1.83%
July1.31%2.24%-0.93%1.90%1.22%0.68%
August2.43%2.03%0.40%2.31%2.43%-0.12%
September1.70%2.14%-0.44%
October-1.56%-0.91%-0.65%
November5.05%5.87%-0.82%
December-4.09%-2.38%-1.71%

The Average Fixed Income Fund Investor is comprised of a universe of fixed income mutual funds, which includes investment grade, high yield, government, municipal, multi-sector, and global bond funds. It does not include money market funds.

20252024
Average Fixed Income Fund
Investor
Bloomberg Aggregate Bond IndexDifferenceAverage Fixed Income Fund InvestorBloomberg Aggregate Bond IndexDifference
January0.44%0.53%-0.09%-0.21%-0.27%0.06%
February1.27%2.20%-0.93%-0.97%-1.41%0.44%
March-0.66%0.04%-0.70%0.46%0.92%-0.46%
April-0.15%0.39%-0.54%-1.98%-2.53%0.55%
May-0.48%-0.72%0.24%0.83%1.70%-0.87%
June1.02%1.54%-0.46%0.52%0.95%-0.38%
July-0.38%-0.26%-0.12%1.54%2.34%-0.80%
August0.81%1.20%-0.39%0.85%1.44%-0.59%
September0.87%1.34%-0.47%
October-2.03%-2.48%0.45%
November0.80%1.06%-0.26%
December-1.73%-1.64%-0.09%

Monthly Market Mood Makers

What were the key market drivers in August, 2025?

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