State Street SPDR Bloomberg 1-3 Month T-Bill ETF (BIL) options traded 82 contracts on October 16, 2026 (60 calls and 22 puts, a put/call ratio of 0.37), compared with a 30-day average of 81. Options price a move of about ±0.3% by the nearest expiration.

Key numbers

30-day implied volatility (IV30): 0.9%
Implied move by the nearest expiration: ±0.3%
Option volume: 82 contracts (60 calls, 22 puts); 30-day average 81

Data as of October 16, 2026.

BIL Option Breakdown

A breakdown of key statistics for each option expiration listed for BIL. View implied volatility, volatility skew, volume, open interest, straddle premiums, and liquidity -- including bid/ask spread and NBBO bid/ask sizes. Includes links to the option chain, as well as numerous detailed charts.

▲ Close