Investors have been revamping their portfolios following the release of the first-quarter earnings of Toronto Stock Exchange (TSX)-listed firms. Most of these companies are reporting pre-COVID level recoveries, while few of them are still struggling to rebound from the ongoing COVID-19 impact.
Here are five TSX stocks that are worth exploring before May ends.
High Liner Foods Incorporated (TSX:HLF)
The consumer-packaged food firm retails its products to health care facilities, enterprises and individuals. High Liner Foods stock gained 110 per cent in the past one year, beating the S&P/TSX Packaged Food & Meat Index in comparison.
High Liner scrip also climbed nearly 24 per cent this year, propelled by the rising demand of essential services.
The company posted a profit surge of C$ 10.4 million in the fourth quarter of 2020, up nearly 347 per cent against a net loss of C$ 3.0 million a year ago. High Liner Foods is expected to announce a robust bottom line in the first quarter of 2021.
Lightspeed POS Inc (TSX:LSPD)
The technology company offers cloud-based Software-as-a-Service (SaaS) solutions and data interfaces to finance tech companies.
Lightspeed stock amplified by around 214 per cent to C$ 70.41 apiece in one year. However, the fintech share prices are down around 23 per cent this year due to tech correction. It could rebound on the back of upcoming results.
The software firm expects Q4 revenues to be in the range of US$ 68 million and US$ 70 million, noting a rise of 17 to 21 per cent sequentially. It projects an adjusted EBITDA loss of nearly US$ 12 million to US$ 14 million.

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SNC-Lavalin Group Inc (TSX:SNC)
Stocks of the construction engineering firm zoomed 49 per cent year-to-date (YTD), led by the higher net income from financing, consulting and construction services.
SNC-Lavalin Group posted a profit attributable to stockholders of C$ 73 million in its first-quarter, as against a loss of around C$66 million a year ago.
SNC-Lavalin stock swelled more than 68 per cent in the past one year, surpassed the S&P/TSX construction and Engineering Index in comparison.
ONEX Corporation (TSX:ONEX)
The asset management firm’s stock increased by 41 per cent in the last one year, guided by its asset and wealth management divisions’ performances. ONEX stock climbed about 18 per cent this year, up four times against the S&P/TSX Asset Management and Custody Banks.
ONEX registered a net income of US$ 415 million in the quarter ending March 31, 2021, recording a massive jump against a net loss of US$ 997 million a year ago.
Adcore Inc (TSX:ADCO)
The artificial intelligence-based advertising solutions provider delivered a substantial 195 per cent equity growth in the past one year, led by the rising digital advertising demand.
Adcore stocks also grew over 77 per cent YTD, overtaking the S&P/TSX IT Consulting & Other Services Index.
After posting a revenue surge of 52 per cent YoY to C$ 22.8 million in 2020, Adcore is likely to report a higher top line for the first quarter of 2021.
The above constitutes a preliminary view and any interest in stocks should be evaluated further from investment point of view.