Such derivative securities can range from amazingly safe and conservative to wildly speculative.

There was the inevitable speculation, whispering between bunks that gradually transformed to a symphony of snoring at night after agreement on some wildly speculative idea.

When these regulators were no longer there to guard the public interest, bankers felt free to throw caution to the winds, and did, engaging in wildly speculative investments.

Marlowe combined a thirst for adventure with wildly speculative opinions.

Then suddenly, during the wildly speculative "bubble" period when land and stock prices soared in the late 80's, management practices became as loose as the period was overly optimistic.

It has no official sponsor and this count is wildly speculative.

Better that the media hear the details from us than from wildly speculative rumors.

Bitcoin is the opposite, a wildly speculative market that's pretty much only useful to gamblers at the moment.

Both figures would have to be wildly speculative, but I would have thought 'one Egyptian in 100,000' might have been closer to the truth.

The wildly speculative market meant investors needed information about stock activity.