Lyft on Friday shared the details of its plans to go public on the Nasdaq exchange under the symbol LYFT. The ride-hailing service had previously announced that it confidentially filed an IPO. In the S-1 form[1] filed with the US Securities and Exchange Commission on Friday, Lyft revealed that its revenue is growing quickly as it gains market share -- but in 2018 it posted net losses of nearly $1 billion.

Lyft's revenue in 2018 was $2.2 billion, up 103 percent from $1.1 billion in 2017. In 2016, its revenue was $343.3 million. The company generated bookings of $8.1 billion in 2018, up 76 percent from $4.6 billion in 2017. Its 2016 bookings were $1.9 billion.

Its net loss in 2018 came to $911.3 million. In 2017, its net loss was $688.3 million, compared with $682.8 million in 2016.  

Operating in more than 300 markets in the US and Canada, Lyft had 30.7 million riders in 2018 and 1.9 million drivers. Its US ridesharing market share was 39 percent in December 2018, up from 22 percent in December 2016. The number of active riders increased 47 percent in the fourth quarter of 2018 compared to the same period in 2017.

Lyft's growing market share is sure to be a concern for Uber, its main competitor. Uber is also readying to go public, but the company has been plagued by a series of controversies Last year, for instance, Uber reached a nationwide settlement agreement[2] over a massive 2016 data breach and subsequent cover-up scheme.[3] Meanwhile, Uber has undergone major leadership shakeups in recent years, and it continues to face challenges outside of North America[4]

As part of its initial public offering, Lyft

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