That did not occur, and today the Treasury will sell $12 billion of 30-year bonds, the most speculative securities they issue.

Because of their maturity, 30-year bonds are the most speculative security issued by the Government.

Coffee, as one grower complained a century ago, "is the most speculative business in the world."

That's the most speculative part of the market.

Then the Zenith lectures closed, and he had ahead only the most speculative opportunities.

With such a range of investment opportunities, why have so many Russians taken the most speculative path?

Finally, the most speculative types of gold investments are futures contracts and options.

Perhaps, but this is admittedly the most speculative part of the plan.

The key is to prune away the most speculative stocks and concentrate on those with the stronger growth prospects.

It is also one of the most speculative.