BUFB vs IVVM

BUFBCInnovator Laddered Allocation Buffer ETF

IVVMBiShares Large Cap Moderate Quarterly Laddered ETF

In short

BUFB Buffer ETFs make you pick a start date. BUFB skips that question: it holds all 12 monthly Innovator 9% buffer ETFs at equal weight, so one sleeve rolls into a fresh outcome period every month.

IVVM Most buffer funds make you pick a start date. IVVM runs overlapping three-month tranches on IVV, each cushioning roughly the first 5% of losses in exchange for a cap, so no single reset date decides everything.

Stated mandate

BUFB The Fund seeks exposure to the investment results of the MerQube US Large Cap Equity Buffer Laddered Index through a laddered portfolio of 12 Innovator U.S. Equity Buffer ETFs. The underlying ETFs seek capped S&P 500 exposure and a 9% loss buffer; BUFB itself does not provide that buffer.

IVVM The fund seeks exposure to large-cap U.S. equities while using staggered-maturity buffers to protect approximately the first 5% of losses. It accepts limited upside and uses the laddered structure to reduce timing risk.

Why people hold it

• BUFB One ticket, twelve staggered outcome periods. Each month one underlying ETF resets, so your result never hangs on a single entry date or a single cap.innovatoretfs.com
• The 9% buffer line is the shallower of Innovator's two ladders; sibling BUFF ladders 15% buffers at the same 0.89%. Different trade-off between cushion and cap room.innovatoretfs.com
• Running since 2022 and rebalanced back to equal weight twice a year, so the ladder does not drift toward whichever sleeve ran hot.innovatoretfs.com

• IVVM 0.50% net of a waiver through June 30, 2028 (0.53% gross), below the category median and well under Innovator's laddered Power Buffer fund BUFF at 0.89%.ishares.com
• Staggered tranches of roughly three-month FLEX options, rolling on a rhythm, spread out the entry-point risk that single-period buffer funds carry.ishares.com
• Born in 2023 as a plain quarterly buffer fund, rebuilt as a ladder in October 2025, and one of the stronger builds in its laddered-buffer peer group.sec.gov
• The reference asset is BlackRock's own S&P 500 workhorse, IVV, inside a standard 1940 Act ETF wrapper that trades all day on an exchange.sec.gov

Worth knowing

• BUFB 0.89% all-in: 0.10% management plus 0.79% from the ETFs it holds. Near the category median, above ALDB (0.30%) and IVVM (0.50% net of a waiver through June 30, 2028).innovatoretfs.com
• BUFB itself does not buffer. You hold 12 outcome periods at once, each with its own cap and its own remaining cushion, so the blend behaves softer than any single sleeve.innovatoretfs.com
• Trading volume is light next to the big index funds, so spreads can be wider than the strategy's one-ticket simplicity suggests.

• IVVM Each tranche caps the upside, and caps are reset at every roll, so a hot S&P 500 stretch leaves the fund behind plain index exposure.ishares.com
• The cushion is thin by design: approximately the first 5% of losses per tranche, with declines past that borne in full, and fund fees come off the top.sec.gov
• Exposure follows IVV's share price, not its dividends, and the fund trades thinly on a modest asset base, so spreads can run wider than on index giants.sec.gov

Full BUFB profile⁠

Full IVVM profile⁠