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CAOS · BATS · ETF

Alpha Architect Tail Risk ETF (CAOS) Price, Holdings & Fees

$503.50+0.69%+$3.45End-of-day price as of Oct 9, 2026

Alpha Architect Tail Risk ETF (CAOS) closed at $503.50 on Oct 9, 2026, up 0.69% from the previous close of $500.05.

Share price, past year

1Y +38.20%

52-week range $364.33 – $514.27. Daily closing prices.
Monthly closing prices
Last closing price of each month
DateClose
Oct 9, 2026$503.50
Sep 30, 2026$503.43
Aug 31, 2026$476.56
Jul 31, 2026$470.32
Jun 30, 2026$461.59
May 29, 2026$451.86
Apr 30, 2026$441.97
Mar 31, 2026$429.26
Feb 27, 2026$406.85
Jan 30, 2026$391.31
Dec 31, 2025$390.20
Nov 28, 2025$390.92
Oct 31, 2025$376.04

Key statistics

Expense ratio
0.63%
as of Jan 31, 2026
Net assets
$705.1M
as of Jun 30, 2026
Holdings
13
as of Jun 30, 2026
52-week range
$364.33 – $514.27

Alpha Architect Tail Risk ETF's expense ratio is 0.63%: $63.00 a year on $10,000 invested.

Holdings

Alpha Architect Tail Risk ETF held 13 investments worth $705.09M as of Jun 30, 2026. Its largest holding was SPY 09/18/2026 10010.01 P, at 89.55% of the fund.

Alpha Architect Tail Risk ETF largest holdings by share of net assets
#Holding% of fundValue
1SPY 09/18/2026 10010.01 P89.55%$631.39M
2SPX US 09/18/26 P1300015.54%$109.58M
3SPY 09/18/2026 10.01 C7.18%$50.59M
4First American Government Obligations Fund0.25%$1.77M
5SPX US 11/20/26 P28000.19%$1.33M
6SPX US 10/16/26 P26000.12%$855.68K
7SPX US 09/18/26 P25000.06%$397.89K
8SPX US 08/21/26 P25000.02%$119.66K
9SPX US 07/17/26 P25000.01%$49.50K
10SPX US 11/20/26 P28000.00%−$4.95K
11SPY 09/18/2026 10010.01 C0.00%−$6.89K
12SPY 09/18/2026 10.01 P0.00%−$6.89K
13SPX US 09/18/26 P12000−12.69%−$89.50M

Top 13 of 13 holdings, as of Jun 30, 2026. Percentages are of the fund's net assets.

What the fund owns

Alpha Architect Tail Risk ETF holdings by asset type
Asset type% of fund
Derivatives99.98%
Cash and short-term investments0.25%
Alpha Architect Tail Risk ETF holdings by country, largest 1
Country% of fund
United States100.23%

Shares of net assets from the fund's N-PORT report. Funds that borrow can add up to more than 100%, with borrowing (such as repurchase agreements) shown as a negative share.

Monthly total returns

Over the 3 months to Jun 30, 2026, Alpha Architect Tail Risk ETF's total return was −0.44%, as reported to the SEC.

Alpha Architect Tail Risk ETF monthly total returns
MonthTotal return
Jun 30, 2026−0.11%
May 31, 2026−0.10%
Apr 30, 2026−0.23%

The fund's own total returns as reported to the SEC (N-PORT), including reinvested distributions. Not the sample prices above.

Fund profile

Name
Alpha Architect Tail Risk ETF
Ticker
CAOS
Exchange
BATS
Fund type
ETF
Trust
EA Series Trust
SEC series ID
S000077908
SEC CIK
0001592900
Fractional shares
Yes

Recent SEC filings

Shareholder reports and prospectuses are filed by EA Series Trust, the trust behind Alpha Architect Tail Risk ETF, and cover all of its funds.

Frequently asked questions

What is CAOS's price?

Alpha Architect Tail Risk ETF (CAOS) closed at $503.50 on Oct 9, 2026, up 0.69% from the previous close of $500.05.

What is CAOS's expense ratio?

Alpha Architect Tail Risk ETF's expense ratio is 0.63%: $63.00 a year on $10,000 invested.

What does CAOS hold?

Alpha Architect Tail Risk ETF held 13 investments worth $705.09M as of Jun 30, 2026. Its largest holding was SPY 09/18/2026 10010.01 P, at 89.55% of the fund. Its five largest holdings were SPY 09/18/2026 10010.01 P, SPX US 09/18/26 P13000, SPY 09/18/2026 10.01 C, First American Government Obligations Fund, SPX US 11/20/26 P2800.

How has CAOS performed?

Over the 3 months to Jun 30, 2026, Alpha Architect Tail Risk ETF's total return was −0.44%, as reported to the SEC.

Sources and methodology

Holdings, net assets and monthly returns come from the fund's N-PORT filing with the SEC, as of Jun 30, 2026 (filed Aug 26, 2026). The expense ratio is from the fund's prospectus or shareholder report, as of Jan 31, 2026. Prices are generated sample data for development. Data sources and disclosures