QLTA vs VTC

QLTAAiShares Aaa - A Rated Corporate Bond ETF

VTCAVanguard Total Corporate Bond ETF

In short

QLTA "Investment grade" spans a lot of ground, and its bottom rung sits one downgrade from junk. QLTA cuts that rung out and holds only Aaa through A corporate bonds: the credit-quality purist of the corporate bond aisle, running since 2012.

VTC Most cheap corporate bond funds sell you one slice of the maturity curve. VTC buys the whole investment-grade corporate market, short to long, for 0.03% a year, and since 2025 it owns the bonds directly instead of stacking three Vanguard funds.

Stated mandate

QLTA The fund seeks to track an index of U.S.-dollar investment-grade corporate bonds rated Aaa through A.

VTC The Fund seeks to track a broad, market-weighted corporate bond index, specifically the Bloomberg U.S. Corporate Bond Index. It uses an indexing approach focused on investment-grade, fixed-rate, taxable corporate bonds.

Why people hold it

• QLTA The whole design in one line: only Aaa through A rated corporate bonds, so the BBB tier that sits a single notch above junk never enters the portfolio.ishares.com
• Charges 0.15% a year, below the typical fee among investment-grade corporate bond ETFs.
• Spreads across thousands of bonds from US and non-US corporations, and pays income monthly.ishares.com
• Has hugged its benchmark, the Bloomberg U.S. Corporate Aaa - A Capped Index, closely since launching in 2012, one of the tighter implementations in its peer group.

• VTC 0.03% a year against a 0.19% median for investment-grade corporate ETFs. On this exact Bloomberg index, nothing in the group charges less.
• One ticker, the full corporate curve. Top-graded rivals like VCIT, IGIB and IGSB each buy a single maturity band; VTC's index spans short, intermediate and long fixed-rate corporates.
• No overlays, no active tilts, no credit guesswork. Market-weighted indexing of investment-grade, fixed-rate, taxable corporates, and the portfolio hews tightly to that mandate.
• Income lands monthly, not quarterly, which matters if bond coupons are doing real work in your cash flow.

Worth knowing

• QLTA The quality filter has a price. Broad investment-grade rivals such as USIG and VCIT own the full ladder, BBB included, for a fraction of this fee.
• High ratings are credit protection, not rate protection. This is still a corporate bond fund, and its share price moves when interest rates move.ishares.com
• A multi-billion-dollar fund, but a moderately traded one rather than a household-name corporate bond ETF, so spreads can widen when markets get busy.

• VTC Whole-curve means long bonds in the mix, so prices move more with interest rates than a 1-5 year slice like IGSB does.
• The plumbing changed in March 2025: Vanguard moved it from holding three underlying corporate bond ETFs to buying the index bonds directly. Same objective, same index.sec.gov
• Moderately traded rather than a volume heavyweight, so spreads can run wider than the busiest corporate bond funds, particularly in choppy markets.

Full QLTA profile⁠

Full VTC profile⁠