The repercussions from Facebook’s botched initial public offering deepened on Thursday as Fidelity Investments found itself dealing with “thousands” of customers with order problems and Knight Capital demanded tens of millions of dollars in compensation from Nasdaq for trading-related losses.

The pressure on Nasdaq in particular was intense, not only from investor lawsuits and angry customers, but from the outside prospect it could lose the Facebook listing entirely after having just obtained it…

Advisers familiar with the situation at Fidelity said many investors are now finding out, nearly a week after the fact, that their orders were not executed at the prices they thought…

Knight Capital’s claims could end up dwarfing the Fidelity issues, though.

via Fidelity, Knight problems add to Nasdaq’s Facebook woes | Reuters.

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(Reuters) – The fallout from Facebook Inc’s messy initial public offering widened on Wednesday as shareholders sued the social network and its bankers while a trading firm revealed a massive loss on the shares and threatened to seek “remedies.”

The Nasdaq stock exchange also came under further pressure as a source close to the situation told Reuters that NYSE Euronext had opened discussions with Facebook about a potential stock listing there. Nasdaq also faces litigation from angry investors.

Facebook’s listing, envisioned as a crowning moment for an eight-year-old company that has become a business and cultural phenomenon, has instead turned into a legal and public relations fiasco for the company and its lead underwriter, Morgan Stanley.

via Shareholders sue Facebook, NYSE comes calling | Reuters.