There's never a shortage of losers in the stock market.

Let's take a closer look at five of this past week's biggest sinkers.

Company

Oct. 21 Weekly Loss My Watchlist
Crocs (Nasdaq: CROX) $15.25 (44%) Add
Bank of Ireland (NYSE: IRE) $5.70 (31%) Add
Polycom (Nasdaq: PLCM) $16.51 (27%) Add
Cirrus Logic (Nasdaq: CRUS) $14.54 (21%) Add
Cree (Nasdaq: CREE) $24.67 (17%) Add

Source: Barron's.

Crocs lost the soul of its soles after the funky footwear maker slashed its guidance. Crocs has counted on overseas popularity to fuel its renaissance as a growth stock, but Europe may be down to wearing wooden clogs -- and not resin Crocs -- the way things are going.

Ireland continues to be a financial wasteland, and Bank of Ireland continues to be one of the biggest losers. The only thing that a recent 1-for-10 reverse stock split has done is prevent us from calling the woozy banker a penny stock.

Video-conferencing specialist Polycom logged off after posting disappointing third-quarter financials. An adjusted profit of $0.26 a share on $379 million in revenue was shy of Wall Street expectations on both ends of the income statement.

Cirrus Logic's slip was completely logical. The maker of iPad and iPhone parts posted disappointing quarterly results. Slippery margins and a ho-hum outlook didn't help Cirrus Logic's cause.

To Cree or not to Cree? Investors chose not to Cree, after the company issued gloomy guidance for the current quarter.

It was a rough week for these five stocks. Let's see if they bounce back.

The Motley Fool owns shares of Cirrus Logic. Motley Fool newsletter services have recommended buying shares of Polycom. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.

Longtime Fool contributor Rick Munarriz calls them as he sees them. He does not own shares in any of the stocks in this story. Rick is also part of the Rule Breakers newsletter research team, seeking out tomorrow's ultimate growth stocks a day early.