The initial public offering market started the month of December off slow, with zero new listings last week. However, the market is expected to pick up in the week ahead, with four companies set to raise more than $4.2 billion.

Here's the week ahead's schedule in order of offering amount:

Nu Holdings Ltd. (NU  ) plans to raise more than $2.8 billion from over 289 million shares priced between $8 to $9 each. The Brazilian online-only bank was formed to launch a no-fees credit card offering a mobile-first customer experience. Since its founding in 2013, Nu has expanded its offerings to include various other financial products for its nearly 50 million customers.

HashiCorp, Inc. (HCP  ) plans to raise more than $1.26 billion from 15.3 million shares priced between $68 to $72 each. The company provides a suite solutions that standardize and automate the provisioning, securing, connecting, and running of cloud infrastructure at scale.

Chicago Atlantic Real Estate Finance, Inc. (REFI  ) plans to raise more than $129 million from 6.25 million shares priced between $16 to $18 each. The cannabis-focused REIT works on originating, structuring, and investing in first mortgage loans and alternative structured financings secured by commercial real estate properties.

Austin Gold Corp. (AUST  ) plans to raise $20.7 million from 3 million shares priced between $4 to $6 each. The Canadian gold exploration company currently has interests in four properties in the state of Nevada.