iShares Trust - iShares MBS ETF (MBB) short interest & options flow
NASDAQMBB short interest surges 85.6% in one week to 0.91% of float, though it retreated 11% on Oct 1. Availability remains exceptionally high at 2462%, signaling ample shares to borrow despite rising cost to borrow at 0.45%.
- Market cap
- $35.37B
Key data as of 21 Oct 2026
Latest signals on MBB
- Short Interest
MBB short interest surges 85.6% in one week to 0.91% of float, though it retreated 11% on Oct 1. Availability remains exceptionally high at 2462%, signaling ample shares to borrow despite rising cost to borrow at 0.45%.
2 Short Interest updates in 30 days
MBB news and analysis
RSSNo long-form analysis yet for MBB. Pulse alerts and the live data picture are available on ORTEX.
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