PFIX vs VIXM

PFIXBSimplify Interest Rate Hedge ETF

VIXMDProShares VIX Mid-Term Futures ETF

In short

PFIX A rate hedge built from an institutional tool. PFIX holds a long-dated OTC payer swaption on the 20-year rate, designed to behave much like owning puts on long Treasury bonds, and it launched in 2021 as the first ETF to package that trade.

VIXM Most VIX funds crowd the front month. VIXM sits in the middle of the curve, rolling fourth-month futures out to seventh for a five-month average maturity. A longer-dated way to own expected S&P 500 volatility, trading since 2011.

Stated mandate

PFIX The fund is designed to hedge against rising long-term interest rates and potentially benefit when fixed-income volatility and market stress increase.

VIXM VIXM seeks to track the performance of the S&P 500 VIX Mid-Term Futures Index before fees and expenses.

Why people hold it

• PFIX Direct, convex exposure to a jump in long-term rates: the payer swaption is structured to gain value as long-dated rates rise, similar to long-dated puts on 20-year Treasuries.simplify.us
• 0.50% expense ratio undercuts the 0.63% median in its hedging cohort and peers like CAOS (0.63%) and TAIL (0.59%), one of the stronger builds in that group.
• The swaption is a strategic holding, reset only after long stretches or extreme rate moves, not rolled every month.simplify.us
• Collateral sits in Treasuries and TIPS, and the fund distributes monthly inside a standard 1940 Act ETF wrapper.simplify.us

• VIXM Mid-curve by design: the index rolls fourth-month VIX futures into seventh while holding fifth and sixth, keeping a weighted average of five months to expiration.proshares.com
• Trading since 2011, one of the longer-running volatility funds, and it delivers VIX futures exposure through a single ticker in an ordinary brokerage account.proshares.com
• ProShares points to the mid-term VIX futures index historically moving opposite S&P 500 returns, which is the reason investors park it beside equity risk.proshares.com

Worth knowing

• PFIX It is engineered to move against long bonds, so the same mechanics that pay off when long rates spike work in reverse when rates fall.simplify.us
• Swaptions are options: value can erode with time and with calmer rate volatility, so carrying the hedge through quiet markets has a cost.simplify.us
• A concentrated OTC derivative position brings counterparty exposure and sharp NAV swings, and the fund is only moderately traded.simplify.us

• VIXM At 0.85% a year, it runs above what several hedging peers charge, including PFIX (0.50%) and TAIL (0.59%).
• ProShares notes the VIX has tended to revert to a long-term average rather than climb over time, unlike asset classes that drift upward, so holding period matters here.proshares.com
• It is a commodity pool rather than a standard stock fund, so tax reporting differs from an equity ETF, and it does not pay regular distributions.

Full PFIX profile⁠

Full VIXM profile⁠