How to Use "speculative" with Example Sentences

1. Essentially , they became like hedge funds -- big speculative , risk-taking machines .
2. But china 's imports are mostly for speculative inventories .
3. Why would anyone chase one ponzi scheme after another when there were other avenues of investment that were not so speculative ?
4. Venture capital transmogrified into speculative fever .
5. Those will attract speculative inflows .