Roblox and Affirm, two high-valued tech companies that were poised to go public soon, are putting off their planned IPOs in light of the bullish debuts last week by Airbnb and DoorDash. Roblox, an online videogame company, and Affirm, a consumer lending platform that was valued last year at $2.9 billion, had been expected to join an end-of-year IPO stampede. But both companies are now looking to get back on track early next year, The Wall Street Journal reported. Affirm's reasons for postponing were unclear. As for Roblox, the decision allows the company time to adjust its deal's pricing and other matters in line with the intense investor appetite that has greeted new issues coming to market, the Journal reported. Roblox has raised more than $335 million, most recently at a $4 billion valuation in February, according to PitchBook.