On Tuesday, Standard & Poor’s assigned Tesla Motors' bond with a B- rating.  Or, in Wall Street talk, Tesla Motors' bond got "junk" status.

"Junk" status is assigned when there's an increased possibility of default.   A "junk" bond bond is rated below investment grade. These bonds typically have a higher risk of default, but pay higher yields due to their risky nature.  This makes them attractive to investors who are willing to take the risk in hopes of a BIG return.

As Automotive News reports:

"In describing the portfolio as “vulnerable,” S&P stated that Tesla has a “narrow product focus, concentrated production footprint, small scale relative to its larger automotive peers, limited visibility on the long-term demand for its products and limited track record in handling execution risks that could arise in managing high volume parallel production.”

Despite the "junk" rating S&P believes that Tesla bonds are "stable" at the moment.  This "stable" rating “reflects our expectation that the company will sustain its recent improvement in gross margins over the next 12 months,” according to S&P.

Per Automotive News:

"So far this year, Tesla has issued $920 million of 0.25 percent unsecured convertible senior notes due in 2019 and $1.38 billion of 1.25 percent unsecured convertible senior notes due in 2021. Last year, the company issued $660 million in unsecured convertible senior notes due in 2018."

Those funds will mainly be put to use in constructing the battery giga factory and for development of Tesla's Gen 3 electric vehicles

Source: Automotive News