It's a recipe for scamming investors and fraud, and shame on Obama for passing it.
The "Jumpstart Our Business Startups Act" (in addition to everything else, the Act has an annoying, redundant title) will very nearly legalize fraud in the stock market.
In fact, one could say this law is not just a sweeping piece of deregulation that will have an increase in securities fraud as an accidental, ancillary consequence. No, this law actually appears to have been specifically written to encourage fraud in the stock markets.
Ostensibly, the law makes it easier for startup companies (particularly tech companies, whose lobbyists were a driving force behind its passage) to attract capital by, among other things, exempting them from independent accounting requirements for up to five years after they first begin selling shares in the stock market.
The law also rolls back rules designed to prevent bank analysts from talking up a stock just to win business, a practice that was so pervasive in the tech-boom years as to be almost industry standard.
Even worse, the JOBS Act, incredibly, will allow executives to give "pre-prospectus" presentations to investors using PowerPoint and other tools in which they will not be held liable for misrepresentations. These firms will still be obligated to submit prospectuses before their IPOs, and they'll still be held liable for what's in those. But it'll be up to the investor to check and make sure that the prospectus matches the "pre-presentation."