Looking at block trades and unusual options volume can be very enlightening. For instance, a big trade in US Global Jets ETF (JETS) can possibly give us clues towards what to expect for the airline industry in November. By looking closely at what trades hit the tape, you can often determine if a strategist is bullish or bearish on an underlying asset and what conviction the strategist has on the position. For JETS, someone rolled a million dollars worth of calls from October to November, which appears to be quite bullish behavior.