Is “talking your book” wrong?

Some people claim that “talking your book” about a stock which you own or are short is wrong. It isn’t.
Talking your book isn’t the same as front running or manipulation.

Front running is the abuse of privileged information for personal gain. Manipulation is the intentional dissemination of false information.

Investors have greater incentives to get stocks right than journalists or sell-side analysts, so their research is more valuable.
Investors’ best research is typically about the stocks they know most about – the stocks they have positions in.

“Talking your book” is legal and widespread. Even before Seeking Alpha, many fund managers – including the most prominent and widely respected – talked their book in interviews on CNBC and other TV shows, pitched their ideas to Barron’s and other publications in the hope they’d be published, and publicized their research about their highest conviction positions in conference presentations (think HLF) or by email.-from Seeking Alpha