OPTN: vega trade last week

[Gregg Murray <eastus@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

Doctor:

Last week in a post you mentioned a large vega trade. I understand that
vega is the change in an option's price based on a change in volatility.

What is the typical strategy/strategies you guys see on the floor for vega
trades...straddles, backspreads, ratio spreads? Do you consider large
uncovered option purchases/sales vega trades?

Thanks,
Gregg Murray