Data as of Oct 27, 2026.

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Alternative ETFs

ATTR vs TAIL: Correlation to the S&P 500

Over the year to Oct 27, 2026, TAIL moved less with the S&P 500 than ATTR: correlation −0.67 against +0.91.

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Net assets: $96m on Jun 30, 2026 for Arin Tactical Tail Risk ETF, and $147m on Jul 31, 2026 for Cambria Tail Risk ETF.

At a glance
+0.91
ATTR correlation with the S&P 500
−0.67
TAIL correlation with the S&P 500
12.8%
ATTR down-week capture
−8.5%
TAIL down-week capture
ATTR Fell 13% as much as the S&P 500
Fell 13% as much as the S&P 500ATTR in the 25 weeks SPY fell, year to Oct 27, 2026: SPY averaged −1.10%, ATTR −0.14%.SPY−1.10%ATTR−0.14%Average week when SPY fell: 25 of 52, year to Oct 27, 2026Fell 13% as much as the S&P 500ATTR in the 25 weeks SPY fell, year to Oct 27, 2026: SPY averaged −1.10%, ATTR −0.14%.SPY−1.10%ATTR−0.14%Average week when SPY fell

ATTR in the 25 weeks SPY fell, year to Oct 27, 2026: SPY averaged −1.10%, ATTR −0.14%.

TAIL Rose when the S&P 500 fell
Rose when the S&P 500 fellTAIL in the 25 weeks SPY fell, year to Oct 27, 2026: SPY averaged −1.10%, TAIL +0.09%.SPY−1.10%TAIL+0.09%Average week when SPY fell: 25 of 52, year to Oct 27, 2026Rose when the S&P 500 fellTAIL in the 25 weeks SPY fell, year to Oct 27, 2026: SPY averaged −1.10%, TAIL +0.09%.SPY−1.10%TAIL+0.09%Average week when SPY fell

TAIL in the 25 weeks SPY fell, year to Oct 27, 2026: SPY averaged −1.10%, TAIL +0.09%.

Pair scorecard

TAIL costs 0.03 points a year less.

ATTR vs TAIL: Correlation to the S&P 500
MeasureATTRTAIL
Return
Total return, 1 yearnot published−13.4%
Against its benchmark
Treasury bills, 52 weeks+3.7%
Cost and size
Expense ratio0.63%0.60%
Net assets, ATTR as of Jun 30, 2026 and TAIL as of Jul 31, 2026$96m$147m
Holdings
Holdings in commonnot published
Risk
Beta to the S&P 500+0.21: about 0.21% for each 1%−0.34: about 0.34% for each 1%
Its average week when the S&P 500 fellfell 0.14%rose 0.09%
ETFIQ Stock Diversification Score · TAIL scores higher How much does it diversify a stock portfolio?
IQ Alternatives Score60.3ATTR93.2TAIL

How much it diversifies a stock portfolio, ranked against 22 equity hedged alternatives ETFs with a full year. 100 is best. How it is computed

8.0, the lowest in this set 97.7, the highest

A percentile among the 22 equity hedged alternatives ETFs with a full year. One year of weekly moves against the S&P 500, within one strategy; it ignores what the fund returned. All alternatives ETFs ranked by it →

Method

Window by window

Window by window: ATTR vs TAIL: Correlation to the S&P 500
Total returnvs its benchmark
WindowATTRTAILATTRTAIL
3 months+2.5%−4.8%−1.7 pts vs VOO−9.0 pts vs VOO
6 months+3.5%−8.7%−5.2 pts vs VOO−17.4 pts vs VOO
1 year–−13.4%–−27.0 pts vs VOO
3 years–−17.4%–−112.2 pts vs VOO
Since launchNot the same days: ATTR Oct 2025 · TAIL Jun 2017+7.5%−51.8%−5.8 pts vs VOO−318.6 pts vs VOO

Source: ETFIQ. – means no data for this window. Open this comparison in the app →

Side by side

ATTR Arin Tactical Tail Risk ETF · Hedged equity fund: owns stocks and pays for protection against a fall, most often with put options TAIL Cambria Tail Risk ETF · Hedged equity fund: owns stocks and pays for protection against a fall, most often with put options
Issuer Arin Cambria
Strategy Hedged equity Hedged equity
Correlation with the S&P 500 +0.91 −0.67
Beta to the S&P 500 +0.21 −0.34
Down-week capture 12.8% −8.5%
Average week when the S&P 500 fell −0.14% +0.09%
The S&P 500 in those weeks −1.10% −1.10%
Total return, same 52 weeks +7.5% −13.6%
Against T-bills, percentage points +3.8 pts −17.2 pts
Expense ratio 0.63% 0.60%
First traded Oct 28, 2025 Jun 13, 2017
Net assets, ATTR as of Jun 30, 2026 and TAIL as of Jul 31, 2026 $96m $147m

As of Oct 27, 2026. Source: ETFIQ.

One strategy, two funds

ATTR and TAIL both run a hedged equity strategy. Over the same 52 weeks to Oct 27, 2026, ATTR’s weekly returns had a correlation of +0.91 with the S&P 500 and TAIL’s −0.67. In the 25 weeks the index fell, by 1.10% a week on average, ATTR averaged −0.14% and TAIL +0.09%. Over the same weeks, ATTR finished 3.8 percentage points ahead of cash and TAIL finished 17.2 points behind cash.

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About each fund
ATTR

ATTR is a hedged equity fund. ETFIQ measures what every alternatives fund is sold on: whether it moves differently from the stock market. Over the year to Oct 27, 2026, its weekly returns had a correlation of +0.91 with the S&P 500’s and a beta of +0.21, so for each 1% the index moved it moved about 0.21% the same way. The S&P 500 fell in 25 of those 52 weeks, by 1.10% on average. In the same weeks ATTR fell 0.14% on average, a down-week capture of 12.8%. Over the same 52 weeks ATTR returned +7.5% and a Treasury bill fund +3.7%, so it finished 3.8 percentage points ahead of cash.

TAIL

TAIL is a hedged equity fund. Over the year to Oct 27, 2026, its weekly returns had a correlation of −0.67 with the S&P 500’s and a beta of −0.34, so for each 1% the index moved it moved about 0.34% the other way. In the same weeks TAIL rose 0.09% on average, a down-week capture of −8.5%. Over the same 52 weeks TAIL returned −13.6% and a Treasury bill fund +3.7%, so it finished 17.2 percentage points behind cash.

Questions people ask

Which moved less with the S&P 500, ATTR or TAIL?
Over the 52 weeks to Oct 27, 2026, ATTR’s weekly returns had a correlation of +0.91 with the S&P 500 and TAIL’s −0.67, so TAIL moved less with the index.
Which did better when the S&P 500 fell, ATTR or TAIL?
In the 25 weeks the S&P 500 fell, by 1.10% a week on average, ATTR averaged −0.14% and TAIL +0.09%, so TAIL returned more in those weeks.
Which earned more than cash, ATTR or TAIL?
Over the same weeks, ATTR finished 3.8 percentage points ahead of cash and TAIL finished 17.2 percentage points behind cash. Cash here is BIL, a fund of Treasury bills.
Which is cheaper, ATTR or TAIL?
ATTR charges 0.63% a year and TAIL charges 0.60%, so TAIL is cheaper. Fees come from each fund's prospectus.
Other comparisons
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ETFIQ, ATTR against TAIL, data as of Oct 27, 2026. https://etfiq.com/compare/alternatives/attr-vs-tail

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