A striking divergence has opened in IWO. The lending market is near-frozen. Yet options traders are the most bullish they've been in months.
The borrow market for the iShares Russell 2000 Growth ETF has tightened dramatically. Availability stood at just 8.5% as of July 13. That means roughly one share remains available for every twelve already lent out.
The drop was swift. One week ago, availability was around 15–16%. A fortnight ago, it sat above 50%. The lending pool has effectively closed in under two weeks.
Cost to borrow has followed availability lower. CTB hit 2.02% on July 13 — nearly double the 1.03% recorded on July 6. That's the sharpest weekly spike in cost since the brief CTB surge seen in mid-June.
Short interest sits at 7.2% of free float — a meaningful level for an ETF. It has edged down 6.2% over the past week, even as the borrow market tightened. Fewer shares being shorted while availability collapses suggests fresh demand for borrows is struggling to find supply, rather than shorts actively covering.
Against this bearish lending backdrop, options positioning has flipped sharply bullish.
The put-call ratio fell to 1.84 on July 13. That's 2.3 standard deviations below the 20-day mean of 2.11. The shift is concentrated in the last three sessions — the PCR sat above 2.18 as recently as July 8.
Buyers of calls on the Russell 2000 growth index have overwhelmed put buyers. The 52-week PCR range runs from 0.17 to 2.96, so current levels are not extreme. But the speed of the move is notable.
The divergence is the story. Lending-market participants are scrambling for borrows and paying more for them. Options-market participants are cutting put exposure and adding calls.
One interpretation: short sellers who built positions when borrows were easy are now trapped in an increasingly expensive trade. Options traders may be front-running a potential unwind.
The ORTEX short score for IWO sits at 69.2, down from 72.5 on June 29. That drift lower, even as availability tightens, adds a layer of complexity.
IWO is down 2.8% over the past week and flat over the past month.
See the live data behind this article on ORTEX.
Open IWO on ORTEX →ORTEX Market Intelligence content is generated by AI from a snapshot of ORTEX's proprietary data. Content is informational only and does not constitute investment advice.
