http://time.com/4068125/nanotech-sector/
TIME Magazine notes that Nobody's Talking About Nanotech Anymore. The article, as it turns out, is far less about nanotech as a failed technology, indeed:
Which is strange, because nanotechnology itself – that is, the science and engineering conducted on a molecular scale, measuring less than 100 nanometers – is yielding applications and products in a number of industries, just as its more sensible supporters have long predicted.
The problem is the financial return.
Ten years on, precious few of the nanotech stocks and venture-backed startups have delivered on their investment promise. Harris & Harris and Arrowhead are both trading at less than a tenth of their respective peaks of the last decade. Invesco liquidated its PowerShares Lux Nanotech ETF in 2014, after it underperformed the S&P 500 for seven of the previous eight years.