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ZL

Zai Lab Limited (ZLAB) short interest & options flow

NASDAQ

Zai Lab heads into September with a curious split: short sellers are rebuilding positions at the fastest pace in months, yet options traders have abruptly abandoned the defensiveness that defined the past two months. The most striking move this week is in options. Zai Lab's put/call ratio has collapsed to 1.96 — nearly two standard deviations below its 20-day average of 3.74…

Latest pulse3 Aug 2026

ZLAB cost to borrow surges 337% in one week to 2.79%, signaling tightening supply as shorts face rising borrowing costs.

$25.48+12.74% 1d+15.45% 1w-0.39% 1mClose: 6 Nov 2026
Cost to borrow
Dropping
Live CTB on ORTEX →
Market cap
$3.16B
Next earnings
25 Mar 2027
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Key data as of 8 Nov 2026

ORTEX chart of Zai Lab Limited (ZLAB) share price and short interest (% of free float), six months to November 6, 2026

Latest signals on ZLAB

  • Cost to Borrow

    ZLAB cost to borrow surges 337% in one week to 2.79%, signaling tightening supply as shorts face rising borrowing costs.

ZLAB news and analysis

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