SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF
ARCABIL, the SPDR Bloomberg 1-3 Month T-Bill ETF, is sending an unusual signal this week: options positioning has turned sharply more defensive even as the underlying fund barely moves. The standout this week is options skew, not short interest. The put/call ratio jumped to 1.87 on September 1 — more than 2.7 standard deviations above its 20-day average of 1.55. That is the most…
BIL short interest plummets 34% in one week to 1.83% of float, lowest level in months as availability soars to 224%.
Snapshot as of 7 Oct 2026
BIL, the SPDR Bloomberg 1-3 Month T-Bill ETF, is sending an unusual signal this week: options positioning has turned sharply more defensive even as the underlying fund barely moves. The standout this week is options…
The most interesting tension in BIL this week is a short interest figure that looks busy on the surface but tells a much calmer story once you look at the lending market underneath it. Short interest climbed nearly 14%…
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