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LSEG's Lipper Reviews Transaction That Skewed U.S. Bond Fund Data

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Jul 25, 20262 min read
LSEG's Lipper Reviews Transaction That Skewed U.S. Bond Fund Data

Summary

A review by LSEG's Lipper has found that a single large transaction distorted its U.S. fixed-income data, turning what appeared to be a record $7.1 billion weekly outflow into a net inflow of $1.54 billion.

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Background

London Stock Exchange Group's (LSEG) Lipper unit is investigating a single, large transaction that significantly skewed its widely-watched U.S. fixed-income fund flow data, reversing what initially appeared to be a record weekly outflow into a net inflow. The review centers on an unusual movement within one investment-grade bond fund.

Data Under Review

In a statement Saturday, the fund data provider said it was investigating the matter after identifying a "sizeable flow within the Short-Intermediate Investment Grade Debt classification that has negatively impacted the fixed income universe." A Lipper spokesperson confirmed the firm is working to determine if the movement reflects a transfer or another type of operational event.

While the review is ongoing, Lipper has removed the fund in question from its current weekly flow report to prevent further distortion. The company stated it would provide more details once the data has been fully validated.

Record Outflow Becomes Inflow

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Fund flow data is a key barometer for investor sentiment, and the initial figures painted a starkly negative picture. On Friday, Lipper's data showed U.S. investment-grade bond funds recorded a record $7.1 billion in net outflows for the week, which included a historic one-day withdrawal of $8.2 billion on July 20.

However, the picture changes completely once the single transaction is excluded. According to a Bloomberg News report citing the revised data:

  • Excluding the fund under review, U.S. investment-grade funds actually posted net inflows of $1.54 billion for the week ended July 22.
  • This represents a nearly $8.6 billion swing from the initially reported figure, highlighting the outsized impact of the single transaction.

The correction turns a narrative of historic investor flight from corporate bonds into one of continued, albeit modest, demand. This underscores the importance of data validation for market participants who rely on such figures for asset allocation decisions.

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