Max Nisen, Columnist

Evidence of Biotech Froth Continues to Mount

Investors keep driving up shares based on shaky trial data.
Lock
This article is for subscribers only.

Biotech investors may need to pump the brakes.

Share prices have been soaring; the Nasdaq Biotech Index is up 28 percent this year. Drug failures are being punished more modestly. And now the definition of drug success appears to be getting more generous.