What happened

Shares of CPI Card Group (PMTS -2.03%) are plummeting on Thursday, declining by more than 44% as of 11:55 a.m. ET after the company slashed guidance for 2016.

So what

CPI Card Group is a leading manufacturer of EMV debit and credit cards with an embedded computer chip. If you use a debit or credit card, you've likely received one in the mail from your bank to replace your old card.

A pile of credit cards on a table.

Image source: Getty Images.

Though this should be a very obvious growth market given the number of cards that will have to be replaced, CPI Card Group seems to be having issues with timing. The company noted that large issuers and processors had overstocked the cards in 2015, which would negatively affect sales growth in 2016.

In addition, it said that small to medium-sized issuers were taking longer to move to chip-based cards, which could reduce its 2016 sales expectations. All in all, it expects each factor to lead to a $35 to $40 million reduction in its forecasted sales, or a $70 to $80 million hit to previous revenue guidance.

Now what

The table below shows CPI Card Group's new expectations for 2016 vs. prior guidance established at the end of 2015.

Metric

Prior guidance

New guidance

Percentage change (midpoint)

Net sales

$431 to $445 million

$335 to $355 million

-21%

Adjusted EBITDA

$111 to $116 million

$75 to $82 million

-31%

Adjusted diluted EPS

$0.92 to $0.97

$0.50 to $0.58

-43%

Data source: 8-K filings.

Notably, the company expects that a decline in sales will lead to a magnified decline in its adjusted earnings per share, as economies of scale and operating leverage work against it.

The market seems content to slash CPI Card Group's share price roughly in proportion to the reduction in earnings guidance for 2016.