FLXI vs GRNB

FLXIDInvesco Flexible Income ETF

GRNBAVanEck Green Bond ETF

In short

FLXI Most funds in this aisle buy the bond index and sit still. FLXI is actively managed, roaming multi-sector debt from U.S. and non-U.S. corporate and government issuers. It launched in 2026, so its record is still short.

GRNB Its peer group is stacked with total-bond-market giants. GRNB goes narrow instead: only dollar-denominated green bonds funding environmental projects, issued worldwide by governments, supranationals and companies. A 2017-vintage specialist at 0.20%.

Stated mandate

FLXI The Fund is actively managed and invests in a multi-sector portfolio of fixed-income securities, including bonds and debt instruments issued by U.S. and non-U.S. corporate and government issuers.

GRNB The fund seeks to track the S&P Green Bond U.S. Dollar Select Index before fees and expenses. The index covers U.S.-dollar-denominated green bonds financing environmentally friendly projects and issued globally by supranational, government, and corporate entities.

Why people hold it

• FLXI Go-anywhere mandate: managers move across sectors and between U.S. and non-U.S. corporate and government debt instead of tracking a fixed index.invesco.com
• Compact for a bond fund at roughly 70 holdings, so individual positions carry real weight instead of getting lost among thousands of line items.
• Pays on a quarterly schedule, with the income drawn from a multi-sector pool rather than one slice of the bond market.
• Comes from Invesco, which rolled the fund out in 2026 as part of a four-fund expansion of its fixed income ETF lineup.invesco.com

• GRNB The mandate is the point: bonds whose proceeds fund environmentally friendly projects, tracked to the S&P Green Bond U.S. Dollar Select Index instead of a generic aggregate benchmark.vaneck.com
• 0.20% a year runs below the typical fund in its category, and it sits in the top quartile of a large aggregate-bond peer group on how closely it tracks and what it holds.
• Global sourcing, dollar pricing: supranational, government and corporate issuers, roughly 500 bonds, all USD-denominated, so no currency translation layered on top.
• Distributions land monthly, and the fund has been running since 2017.

Worth knowing

• FLXI Active flexibility costs more: 0.39% a year against 0.03% for index staples like BND, SPAB and SCHZ, and a shade above the typical fee in its category.
• Young and small. It launched in 2026 with a short record and light trading, so spreads can run wider than at the mega-funds in this category.
• There is no index to measure it against. Outcomes ride on the managers' sector and issuer calls, including non-U.S. debt a core U.S. bond fund would not hold.

• GRNB Thinly traded next to core bond giants like BND, so spreads and order type matter more here.
• Green describes what the proceeds fund, not an issuer's whole business; the credit still sits with governments, supranationals and companies.
• The screen costs extra: plain aggregate rivals like BND and SPAB list expense ratios near 0.03%.

Full FLXI profile⁠

Full GRNB profile⁠