Alpha Architect ETFs Report Sharp August Declines in Short-Interest Levels

CAOS’s August 14 short interest fell 90.9% to 10,116 shares, with only about 0.2% of CAOS shares sold short and a short-interest ratio of 0.3 days, signaling exceptionally thin bearish exposure.
BOXA is a relatively new, actively managed ETF (launched Dec 17, 2024) that uses a complex options-based approach to broad credit fixed income; August short interest dropped to 284 shares (0.4%), with a 0.3-day days-to-cover.
ABLG saw substantial institutional activity, including new stakes from Raymond James Financial, Osaic Holdings, JPMorgan Chase, and Jane Street, while Susquehanna International Group boosted its stake; short interest collapsed to 195 shares (down 96.7%) with virtually no remaining short exposure.
CVAR’s short interest dropped from 225 shares to 3 shares (down 98.7%), leaving 0.0% of the stock sold short; the ETF had a 12-month high of 31.86 and a low of 26.91, with typical daily volume around 1,843.
GMAR’s short interest fell 99.1% to 155 shares, with a 0.0-day short-interest ratio; several hedge funds increased positions, including Sequent Planning, Diversify Advisory Services, Range Financial Group, Smartleaf Asset Management, and Advisory Services Network.
Short bets against five Alpha Architect ETFs collapsed in August, with some funds seeing 99% drops in short interest. MarketBeat data shows CAOS fell 90.9% to 10,116 shares, BOXA dropped 96.2% to 284 shares, and CVAR plummeted 98.7% to just 3 shares. The wave of short covering signals investors are pulling back from bearish bets on these specialized funds.
All five funds now have virtually no short exposure left. Days-to-cover ratios sit near zero across the board, meaning any remaining shorts could be bought back in hours. The dramatic unwinding suggests growing optimism or a shift away from hedging strategies in tail-risk and fixed-income ETF niches.
The short interest plunge swept across Alpha Architect's fund lineup in mid-August. MarketBeat reported CAOS (tail-risk ETF) dropped from about 115,000 shares to 10,116 shares. ABLG (international leaders strategy) fell 96.7% to 195 shares. GMAR (US equity risk-buffer) sank 99.1% to 155 shares. All five funds now have less than 0.5% of their shares sold short.
The timing suggests coordinated unwinding rather than random trades. On August 14, when these figures were reported, all five ETFs traded on modest gains. CAOS closed around $90.44, BOXA near $105.43, and GMAR around $44.95. The synchronized collapse across such different fund types points to institutional repositioning rather than fund-specific bad news.
Major financial players are buying into Alpha Architect strategies instead of shorting them. Susquehanna International Group boosted its stake in ABLG, while MarketBeat data shows new institutional positions opened at Raymond James Financial, Osaic Holdings, JPMorgan Chase, and Jane Street. These are not retail traders—they're heavyweight market makers adding to positions.
Hedge funds are also stepping in. Sequent Planning, Diversify Advisory Services, Range Financial Group, Smartleaf Asset Management, and Advisory Services Network all expanded holdings in GMAR during August. This wave of institutional buying directly conflicts with the trend of short covering, suggesting money managers see value in risk-buffer and factor-based strategies heading into late 2026.
With days-to-cover ratios at or near zero, short squeezes are off the table. MarketBeat reports CAOS has a 0.3-day ratio while CVAR sits at 0.0 days. This means any remaining shorts can cover their positions in minutes. The extremely thin float shorted—under 0.5% for all five funds—removes any structural vulnerability or explosive upside potential tied to squeezes.
The low liquidity in these niche ETFs actually works against squeeze scenarios. Daily trading volume for CVAR averages just 1,843 shares. Even tiny short positions can be unwound without moving the needle on price. The real story is not a squeeze setup but rather institutional capital finally recognizing Alpha Architect's specialized strategies as legitimate portfolio tools.
The disappearance of short bets suggests traders backed away from hedging bets in August. Tail-risk funds like CAOS and risk-buffer strategies like GMAR typically attract shorts from investors seeking downside protection. When shorts vanish, it usually means participants expect calmer markets or see less need for insurance. Morningstar and FactSet Research note that 2026 saw shifting active-passive dynamics and institutional rebalancing.
But don't confuse lower short interest with a bullish guarantee. Alpha Architect's own fund prospectuses filed with the SEC warn that options-writing and fixed-income strategies carry valuation, credit, and interest-rate risks. A collapse in short interest simply means fewer traders are betting against these funds—not that the funds are risk-free. Institutional inflows and short covering could reverse quickly if market conditions shift.
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