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Wal-Mart's warning just shook these two IPOs

Two IPOs who were looking to price on Wednesday after the closing bell may have been seriously spooked by Wal-Mart's market-shaking move earlier in the day.

Just barely into the trading session on Wednesday, the retail giant announced that its full-year sales would be flat in 2016. That sent stock tumbling into its worst trading day in more than 25 years on a percentage basis.

Two companies set to go public, Albertsons and First Data, both took a hit as a result of the market's Wal-Mart jitters.

First Data, a payment-processing company, priced Wednesday night at $16, below its target of an $18 to $20 range.

Supermarket operator Albertsons was shooting for a range of $23 to $26, but reports surfaced Wednesday that the company might price closer to $20 or less. The company moved its pricing to Thursday.

Wal-Mart's lowered guidance weighed heavily on the Dow Jones industrial average and raised questions as to whether U.S. consumers are seriously tightening their wallets.

—CNBC's Kate Kelly and Jacob Pramuk contributed to this report.