Accounting is complicated. For example, let's say you buy a box for $50, pay it right away, then sell the box and deliver it on December for $100, but the buyer only pays you in January.
Then you need to publish your results for this year. How do you do it?
P&L statement:
Revenue: $100
Costs: $50
Profit: $50
Cash flow statement:
Cash from sales: $0
Cash paid to suppliers: $50
Net cash flow: -$50
So you had a negative cash flow, but was profitable.
Actually, IIRC (and correct me if I'm wrong) for accounting purposes, gold counts as "cash & cash equivalents", so if it bought $1B in gold bars, AirBnB's cash wouldn't change.
Bonds can be considered cash equivalents if they have short maturity.
Gold is highly liquid, and from what I've read, it can be considered (in bullion) cash equivalents, except for banks, that due to Base 3 regulations can only consider part of their gold holdings as cash equivalent for liquidity purposes.
Then you need to publish your results for this year. How do you do it?
P&L statement:
Revenue: $100
Costs: $50
Profit: $50
Cash flow statement:
Cash from sales: $0
Cash paid to suppliers: $50
Net cash flow: -$50
So you had a negative cash flow, but was profitable.