eBay Shares Under Pressure Following ChannelAdvisor Data; Same-Store Sales Down 9% From February

eBay Inc (NASDAQ: EBAY) was trading down in Wednesday's after-hours session. ChannelAdvisor released its March same-store sales report, with some disappointing news for the online marketplace vendor.

eBay's same-store sales for the month came in at -0.2 percent, a decrease from February's 9.5 percent. This was essentially flat year-over-year compared vs. the e-commerce growth rate of 15 percent.

Here are ChannelAdvisor's interior data points for the month:

• eBay auctions: March’s eBay auction same-store sales were -20.8 percent year-over-year, a decrease compared to February's -15.7 percent
• eBay fixed-price: Came in at -5.8 percent year-over-year in March, a decrease from February's 4.1 percent.
• eBay Motors: Parts and Accessories for March were 11.3 percent, down compared to February's 22.1 percent. eBay Motors P+A continued to be the bright spot in the eBay same-store sales results, growing fastest of all the eBay components.

Overall, the report noted that "March is consistent with the trends we saw in February with a mix of channels growing faster or in-line with the e-commerce growth rate of 15 percent."

After closing higher by more than 4 percent, eBay shares were down about 1.3 percent at $25.10 in the after-hours session.