Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: The Energizer Bunny ran out of power and fell flat on its face today as Energizer Holdings (NYSE: ENR) fell as much as 15% in intraday trading after the company released earnings.

So what: Earnings excluding one-time items of $1.68 per share fell well short of estimates of $1.92 per share, and expectations for the rest of the year weren't better. Energizer expects earnings for fiscal 2011 to be between $5.10 and $5.30 per share, below estimates of $6.12.

Now what: This is the second straight earnings report that has put Energizer on our plunged list as results continue to be weaker than anyone expected. Promotional spending on Energizer's Schick Hydro was one reason for the weak results this quarter. To rub a little salt in the wound, competitor Procter & Gamble said it had to ramp up production to keep up with demand for its Gillette Fusion ProGlide razors. I don't see any reason to buy today -- unless you want to get into P&G.

Interested in more info on Energizer? Add it to your watchlist.

Fool contributor Travis Hoium does not have a position in any company mentioned. You can follow Travis on Twitter at @FlushDrawFool, check out his personal stock holdings or follow his CAPS picks at TMFFlushDraw.

Energizer Holdings is a Motley Fool Inside Value selection. Energizer Holdings is a Motley Fool Stock Advisor recommendation. Procter & Gamble is a Motley Fool Income Investor selection. 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.