Citigoup’s stock closed at $4.71 today, down 26.39%. That pushes them below the $5 threshold, which is generally a big trigger for massive selling:

Most institutional investors and pension funds are barred from owning stocks below $5. So if Citigroup’s stock remains below that level, it could trigger a wave of selling that would send the share price even lower.

“That’s the danger of crossing that $5 threshold,” says Owen Malcolm, senior vice president of Sanders Financial Management in Atlanta. “They’re (Citigroup) already in trouble. It could get worse.”

I got a feeling their isn’t going to be much to be thankful for next week on Wall Street.