Cboe BZX · CAOS · ETF
Alpha Architect Tail Risk ETF (CAOS) ETF price history
Every Cboe BZX trading session of Alpha Architect Tail Risk ETF from Mar 6, 2023 to Sep 28, 2026: 895 daily bars, adjusted for splits and dividends, with minute bars from Jul 13, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
CAOS adjusted close, 2023 to 2026
- $91.49
- All time high, 2025
- $90.97
- 52 week high, $89.46 low
- 895
- Daily sessions since 2023
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2023 to 2026 series and minute bars.
CAOS key facts
- Alpha Architect Tail Risk ETF (CAOS) closed at $90.41 on Sep 28, 2026 on Cboe BZX.
- CAOS's all time high close is $91.49, set on Apr 8, 2025; its all time low close is $74.35 on Mar 10, 2023.
- CAOS's 52 week range is $89.46 to $90.97.
- CAOS returned +1.0% over the year to Sep 28, 2026.
- Since Mar 6, 2023 CAOS returned +17%, +4.6% a year compounded.
- CAOS's deepest drawdown was -3.6% from Apr 8, 2025 to May 9, 2025.
- DataCedar holds 895 daily sessions of CAOS history from Mar 6, 2023 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
CAOS price chart, 2023 to 2026
CAOS returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +0.0% |
| 3 months | -0.1% |
| 6 months | -0.5% |
| Year to date | +0.6% |
| 1 year | +1.0% |
| 3 years | +11.3% |
| 5 years | n/a |
| 10 years | n/a |
| Since Mar 6, 2023 | +17.5% |
| Compound annual growth, 3.6 years | +4.6% |
CAOS records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $91.49 on Apr 8, 2025
- All time low close
- $74.35 on Mar 10, 2023
- 52 week high
- $90.97 on Mar 9, 2026
- 52 week low
- $89.46 on Sep 29, 2025
- Deepest drawdown
- -3.6% from Apr 8, 2025 to May 9, 2025, not yet recovered
- Best single session
- +2.0% on Apr 4, 2025
- Worst single session
- -3.0% on Apr 9, 2025
- Volatility, 1 year annualised
- 1.5%
- Sessions closing higher, 1 year
- 46%
- Best calendar year
- 2024, +5%
- Worst calendar year
- 2025, +3%
CAOS price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2023 starts on Mar 6, 2023; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $89.83 | $90.97 | $89.71 | $90.41 | +0.7% | 9.8M | 185 |
| 2025 | $87.35 | $92.11 | $87.30 | $89.78 | +2.6% | 8.4M | 250 |
| 2024 | $82.86 | $93.93 | $82.62 | $87.54 | +5.3% | 2.9M | 252 |
| 2023 | $77.36 | $83.36 | $73.76 | $83.11 | n/a | 1M | 208 |
CAOS monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | $90.41 | -0.0% |
| August 2026 | $90.43 | -0.0% |
| July 2026 | $90.46 | +0.1% |
| June 2026 | $90.36 | -0.1% |
| May 2026 | $90.47 | -0.1% |
| April 2026 | $90.58 | -0.2% |
| March 2026 | $90.76 | +0.4% |
| February 2026 | $90.37 | +0.1% |
| January 2026 | $90.32 | +0.6% |
| December 2025 | $89.78 | -0.1% |
| November 2025 | $89.90 | -0.1% |
| October 2025 | $90.02 | +0.5% |
About the CAOS data
Daily bars. 895 sessions from Mar 6, 2023 to Sep 28, 2026, one row per Cboe BZX trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Jul 13, 2026 forward, most recent session Sep 28, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are Cboe BZX trading days; minute timestamps are UTC. Prices are in USD. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Mar 6, 2023, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/CAOS/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Cboe BZX
- BZZ Corgi Drones & Urban Air Mobility ETF
- CABZ Roundhill Robotaxi, Autonomous Vehicles & Technology ETF
- CALF Pacer US Small Cap Cash Cows ETF
- CAMC Corgi CAMT 2x Daily ETF
- CAPA Defiance AI Capacitors & MLCC ETF
- CARX Corgi CART 2x Daily ETF
- CATG Leverage Shares 2X Long CAT Daily ETF
- CAUG Corgi U.S. Equities 15% Structured Buffer ETF - August Series
Common questions
CAOS share price history
