It was another busy week for Australia's top brokers. This has led to the release of a number of broker notes.

Three broker buy ratings that you might want to know more about are summarised below. Here's why brokers think these ASX shares are in the buy zone:

Gentrack Group Ltd (ASX: GTK)

According to a note out of Shaw and Partners, its analysts have retained their high risk buy rating and $11.80 price target on this utilities software company's shares. Shaw and Partners is a big fan of Gentrack and has named it as one of its top picks. And with the tech stock getting dragged down during the market sell off, the broker thinks now is a great buying opportunity for investors. Especially with Gentrack recently reaffirming its confidence in achieving medium-term annual revenue growth of 15%+. Shaw and Parthers is expecting recurring revenue growth at almost 20% for FY 2025. The Gentrack share price ended the week at $9.87.

Guzman Y Gomez Ltd (ASX: GYG)

A note out of Morgan Stanley reveals that its analysts have retained their overweight rating and $42.00 price target on this quick service restaurant operator's shares. This follows the release of a strong third quarter update from the burrito seller last week. Morgan Stanley highlights that Guzman Y Gomez's performance has improved since the end of the first half, with sales growth accelerating. As a result, the broker believes the company is on track to outperform expectations in FY 2025. It was also pleased to see the announcement of a dividend policy, which will see the majority of future earnings paid out to shareholders. The Guzman Y Gomez share price was fetching $33.26 at Friday's close.

Pilbara Minerals Ltd (ASX: PLS)

Analysts at Morgans have retained their add rating on this lithium miner's shares with a reduced price target of $2.40. According to the note, the broker has cut its lithium forecasts due to an oversupply caused by production from Africa and China. The good news is that Morgans believes that Pilbara Minerals has the balance sheet strength to cope with low lithium prices until at least FY 2025. Whereas some of its peers may need to raise capital before then to shore up their balance sheets. In light of this, it sees the company as a good way to gain exposure to the eventual recovery in lithium prices. The Pilbara Minerals share price ended the week at $1.37.