The Amplify Cybersecurity ETF HACK has climbed 8.3% in a single week to $91.30, riding a renewed wave of investor interest in the sector — and the backdrop is becoming more charged by the day.
The tailwind has a clear catalyst. The White House this week announced plans to review AI models before release, a move that directly implicates the cybersecurity names sitting inside HACK. SentinelOne integrated its Singularity platform into AWS Security Hub, adding another enterprise contract win to the sector's scorecard. CrowdStrike and Palo Alto Networks — two of HACK's largest holdings — both featured in news flow around the White House AI-security briefing. The one-month gain now runs to 16.2%, making this one of the stronger runs in the ETF's recent history.
Options positioning has grown more cautious as the rally extended. The put/call ratio is running near its 12-month high at 0.49, well above its 20-day average of 0.45 and about 1.6 standard deviations above it. That tells a specific story: as the ETF has re-rated sharply higher, options participants have been adding more protection on the upside than they've been chasing it. The PCR touched its 52-week peak of 0.497 just one session ago on May 18. That defensive lean inside a rising market is worth noting.
Short interest in HACK is genuinely modest — at just 0.33% of the float, it is nowhere near a level that would make directional bets meaningful. What is notable, however, is the pace of change. Estimated short shares jumped 19.7% in one session and 26.8% over the week. From a negligible base, that's an unusual pickup in activity. Cost to borrow has followed: at 1.74% annualised, it is at its highest level in 30 days, up 42% over the week. The borrow market for HACK remains extremely loose — availability is at 865%, meaning the supply of shares to lend vastly exceeds current short demand — but the directional trend in both metrics is accelerating.
The ORTEX short score is a modest 32, consistent with a fund where shorts are dabbling rather than convicted. The score has oscillated between 26 and 36 over the past two weeks, broadly tracking the price swings but without signalling any regime change. HACK carries no analyst coverage in the traditional sense, and valuation metrics are not meaningful for a passthrough ETF vehicle. The story here is simply about sector flows and momentum positioning, not fundamental re-rating.
The key variable to watch is whether the policy-driven bid for cybersecurity names sustains through the next round of earnings from HACK's core holdings. A reversal in the AI-regulation narrative — or a miss from a heavyweight like CrowdStrike or Palo Alto — would test how much of the 16% one-month move is structural demand versus tactical rotation.
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