iShares Trust - iShares S&P 100 ETF
ARCAOEF short interest
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OEF, the iShares S&P 100 ETF, is sending a notable signal this week — not from its lending market, which has loosened dramatically since the August 19 note, but from options positioning, which has swung to its most…
OEF, the iShares S&P 100 ETF, is catching attention this week — not for short selling pressure, but for how dramatically that pressure has unwound. The most striking development is in the lending market. Availability…
Snapshot as of 6 Sept 2026
The bullish options rotation flagged in last week's note has intensified — the put/call ratio on OEF has now dropped to its most call-skewed reading in over a year. Options positioning has moved further in the same…
Options positioning on OEF, the iShares S&P 100 ETF, has shifted sharply bullish. That shift comes even as borrow costs climb to their highest level since early June. The put-call ratio fell to 1.70 on July 17. That is…
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