There is definitely a strong correlation between the stock market and junk-bond performance.
Ehhh...perhaps but do people working a job and paying on a loan correlate with a corporation meeting their debt obligations?
What affects lending club payback performance is loss of a job, serious injury or medical condition, death, divorce, serious financial mishap or taking on more debt than the borrower can pay. I fix the last one by filtering. I can't do anything about the rest. The only two of those that are economy related are the loss of a job or serious financial mishap, like a housing market crash.
Since the housing market collapse (which I think had a LOT more to do with higher default rates than the economy and definitely more to do with it than the stock market decline) happened at the same time as the recession, job loss, etc...its hard to pick out the causative factors to rise in defaults a few years ago.
However, it'd take some splaining to come up with the correlation between a drop in the S&P 500 and Frank the car repairman not paying his monthly car payment or debt consolidation loan. Maybe a guy who sells financial products for a living and makes his money on commission has a bad time paying loans during a stock market crash.
In any case I'm pretty sure I said results would likely to be trailing on LC default rates, which is fine with me. Its not like the DOW will drop 4000 points one day and 15% of my loans will default the next. It'll more likely have an effect 3-6+ months later. I can still draw a bunch of cash from my LC account until, through, and after a higher default rate scenario and avoid selling equities while they're beaten down.
Unless I get into a certain loss situation, and during the recent worst recession since the depression coupled with a housing market crash and a stock market crash...lenders with 800+ notes still made money, I don't think stock market correlation from anything other than a total return measure matters here. I just want to avoid losing money, make some money on my cash stash if I can, and have a source of steady reliable income with a knob I can turn up and down to avoid selling equities in a market downturn.