The S&P/ASX 300 Index (ASX: XKO) is posting a modest gain on Wednesday, helped along by three shares that call the index home.
They've gained as much as 11.7% today amid, ahead of, and exclusive of, exciting announcements.
Meanwhile, the ASX 300 is up 0.27% at 6,794.4 points right now.
Let's take a look at what's driving them to outperform the iconic index this afternoon.
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These 3 ASX 300 shares are taking off today
Among the top-performing ASX 300 shares today is Costa Group Holdings Ltd (ASX: CGC). The stock is rocketing 11.68% at the time of writing to trade at $2.49.
Its gains come on the back of news its historical parent company, Paine Schwartz Food, which spun Costa out in 2015, has bought a sizable chunk of its shares.
The private equity firm snapped up a 13.78% stake in Costa overnight, paying an average price of around $2.51 per share, as my Fool colleague James reports.
There's yet to be any clue as to whether the firm might attempt to further increase its stake or make a play for the company.
Another ASX 300 share taking off on Wednesday is Vulcan Energy Resources Ltd (ASX: VUL). Right now, its stock is up 5.24%, trading at $7.23.
Interestingly, there's been no word from the lithium developer – yet.
The company is expected to release its activities and cashflow report for the September quarter tomorrow. No doubt, all eyes will be on the stock on Thursday morning.
Finally, the Calix Ltd (ASX: CXL) share price is helping to buoy the ASX 300 despite the company's silence. It's soared 3.43% to trade at $5.73 at the time of writing.
While there's been no word from the environmental technology stock today, it did open a $20 million share purchase plan, expected to issue new shares for $4.55 apiece, yesterday.
It follows a $60 million capital raise the company undertook last week.
