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IB
iShares Trust - iShares Biotechnology ETF (IBB) short interest & options flow
NASDAQIBB enters the final day of October with an unusual split: the ETF has gained nearly 5% on the week to $217.61, yet short sellers have barely flinched, keeping their positions close to a one-month high. The persistence of that short positioning is the week's central tension. Short interest has crept up 0.9% over the past seven days to 23.2% of free float, and is now 5.4% above where…
$215.47+0.79% 1d+1.54% 1w+4.96% 1mClose: 3 Nov 2026
- Market cap
- $11.39B
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Key data as of 4 Nov 2026
IBB news and analysis
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