Zalando put out nice preliminary figures for the fourth quarter ended Dec. 31, although they came in below its latest forecast for the period. Breaking the magic €1 billion range for the first time, the quarterly turnover reached a level estimated at between €1,086 million and €1,094 million, representing an increase of between 25 and 26 percent from the fourth quarter of 2015.

For the full financial year, revenues went up by between 22.9 percent and 23.1 percent, reaching a level of €3.63 billion to €3.64 billion, hitting the middle of the guidance given most recently by the company's management.

The adjusted operating margin (Ebitda) for the year rose to a level of between 5.6 percent and 6.2 percent. In the fourth quarter, Zalando generated an adjusted Ebitda margin of 7.5 percent to 9.5 percent, compared with 8.3 percent in the same period of 2015.

Expressing satisfaction with the results, the management attributed them to Zalando's ongoing investments aimed at improving the customer experience.

The company said it will open a satellite warehouse in Sweden later this year, similar to those it has established in France and Italy, to better service the Nordic markets.

Zalando plans to publish its final figures for the fourth quarter and the past year on March 1.