SAO PAULO, Jan 16 (Reuters) - Brazilian planemaker Embraer SA said on Monday it had secured a new firm order for 15 new E195-E2 aircraft from an undisclosed customer, driving its shares higher in Sao Paulo.

Shares of Embraer were up more than 3% to 16.26 reais in morning trading, making it one of the top gainers on Brazil's Bovespa stock index, which was down 0.8%.

Embraer said in a statement the order was valued at $1.17 billion at list price and would be added to its fourth-quarter 2022 backlog.

The company had already announced late last year an order for five E195-E2 jets from Spanish carrier Binter, which was also added to its fourth quarter backlog.

Analysts at JPMorgan said they see Embraer's backlog hitting as much as $20.9 billion in the period, up from $17.8 billion at the end of the third quarter, which would represent the highest level since the third quarter of 2016.

"We view today's announcement as a positive as Embraer’s backlog growth is an important factor supporting our 'Overweight' rating on the name," they said in a research note. (Reporting by Gabriel Araujo; Editing by Steven Grattan)