It has been another busy week for many of 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 right now:

CSL Ltd (ASX: CSL)

According to a note out of Ord Minnett, its analysts have retained their buy rating and $310.00 price target on this biotherapeutics company's shares. The broker has been looking at the company's margins. The good news is that it believes that higher margin specialty products will be able to offset margin pressures from other sides of the business. It notes that this will be supported by the impending launch of Andembry in the United States, which received FDA approval earlier this week. It expects this to underpin mid-single digit revenue growth in the Specialty Products segment through to 2028. The CSL share price is trading at $240.42 on Friday afternoon.

Jumbo Interactive Ltd (ASX: JIN)

A note out of Macquarie reveals that its analysts have retained their outperform rating on this online lottery ticket seller's shares with a trimmed price target of $13.90. The broker highlights that Jumbo's shares have materially de-rated since its half year results. It notes that this has been driven by market-share losses within Australian lottery retailing. However, it feels this has been an overreaction, highlighting that its shares are trading at a 45% P/E discount to the ASX 300 Industrials. This is its widest since 2017. So, with Macquarie expecting the company to outperform expectations in FY 2026 and beyond, it thinks now could be an opportune time for investors to snap up shares. The Jumbo share price is fetching $9.71 at the time of writing.

Life360 Inc (ASX: 360)

Analysts at Morgan Stanley have retained their overweight rating on this location technology company's shares with an improved price target of $40.00. According to the note, the broker believes that Life360 is well-positioned for further strong growth. It highlights that it has one of the fast-growing userbases and is supported by the network effect and word of mouth. This lends itself to lower customer acquisition costs compared to what other companies have to pay. All in all, it sees potential for Life360 to outperform the market's expectations in the medium term. The Life360 share price is trading at $32.08 on Friday.