LSIGX — Loomis Sayles Investment Grade Fixed Income Fund

Data updated: 2026-08-28

LSIGX — Loomis Sayles Investment Grade Fixed Income Fund. Long Total / Aggregate Bond · $178.07M AUM. Holdings, fees, performance and SEC filings.

LSIGX Fund Overview

LSIGX — Loomis Sayles Investment Grade Fixed Income Fund is a US mutual fund managed by Loomis Sayles Funds I, categorised as Long Total / Aggregate Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.

  • Type: US mutual fund
  • Manager: Loomis Sayles Funds I
  • Category: Long Total / Aggregate Bond
  • Assets under management: $178.07M
  • 1-year return: 4.3%
  • Ticker: LSIGX
  • SEC CIK: 0000917469
  • SEC series ID: S000006646
  • Share class ID: C000018133

LSIGX Holdings

Top 10 holdings of Loomis Sayles Investment Grade Fixed Income Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.

Holding% of net assets
United States Treasury4.78%
United States Treasury3.44%
Fixed Income Clearing Corp.2.41%
United States Treasury2.15%
United States Treasury1.93%
United States Treasury1.34%
Natl Life Insurance-Vrmt1.00%
Beignet Investor LLC0.98%
Space Exploration Tech0.92%
Nlv Financial Corp.0.86%

View all LSIGX holdings

LSIGX Portfolio Allocation

Asset-class allocation of Loomis Sayles Investment Grade Fixed Income Fund by percentage of net assets, from the latest SEC N-PORT filing.

Asset classAllocation
Fixed Income63.7%
Securitized27.8%
Loans6.3%
Cash & Equivalents2.4%
Equity0.2%
Real Estate0.2%

LSIGX Performance

Total returns for LSIGX (as of 2026-09-01), from SEC filings.

PeriodTotal return
YTD0.9%
1 year4.3%
3 years (annualised)5.5%
5 years (annualised)1.4%

LSIGX Risk Information

Risk metrics for LSIGX, derived from monthly returns in SEC filings.

  • 1-year volatility (annualised): 3.3%

LSIGX Costs and Fees

LSIGX costs about $53 per $10,000 invested per year in fund expenses.

  • Net expense ratio: 0.53%
  • Gross expense ratio: 0.59%
  • Portfolio turnover: 76%
  • Brokerage commissions: 0.77 bps of average net assets (SEC N-CEN)

LSIGX Cashflows

Over the 12 months to 2026-06, Loomis Sayles Investment Grade Fixed Income Fund had net outflows of $29.10M, from monthly SEC N-PORT filings.

MonthNet flow
2026-06$794.87K
2026-05$893.32K
2026-04$739.55K
2026-03$893.73K
2026-02−$13.79M
2026-01$755.85K

LSIGX Debt Constituents

Largest debt holdings of Loomis Sayles Investment Grade Fixed Income Fund by percentage of net assets, from the latest SEC N-PORT filing.

Debt holding% of net assets
United States Treasury4.78%
United States Treasury3.44%
United States Treasury2.15%
United States Treasury1.93%
United States Treasury1.34%
Natl Life Insurance-Vrmt1.00%
Beignet Investor LLC0.98%
Space Exploration Tech0.92%
Nlv Financial Corp.0.86%
Glencore Funding LLC0.81%

LSIGX Prospectus and SEC Filings

Official Loomis Sayles Investment Grade Fixed Income Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.

Related Funds

Other Long Total / Aggregate Bond funds tracked on ABC INVEST:

Data Sources

ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.