<P> The next day, "Black Tuesday", October 29, 1929, about 16 million shares traded as the panic selling reached its peak . Some stocks actually had no buyers at any price that day ("air pockets"). The Dow lost an additional 30 points, or 12 percent . The volume of stocks traded on October 29, 1929, was a record that was not broken for nearly 40 years . </P> <P> On October 29, William C. Durant joined with members of the Rockefeller family and other financial giants to buy large quantities of stocks to demonstrate to the public their confidence in the market, but their efforts failed to stop the large decline in prices . Due to the massive volume of stocks traded that day, the ticker did not stop running until about 7: 45 p.m. The market had lost over $30 billion in the space of two days which included $14 billion on October 29 alone . </P> <Table> Dow Jones Industrial Average on Black Monday and Black Tuesday <Tr> <Th> Date </Th> <Th> Change </Th> <Th>% Change </Th> <Th> Close </Th> </Tr> <Tr> <Td> October 28, 1929 </Td> <Td> − 38.33 </Td> <Td> − 12.82 </Td> <Td> 260.64 </Td> </Tr> <Tr> <Td> October 29, 1929 </Td> <Td> − 30.57 </Td> <Td> − 11.73 </Td> <Td> 230.07 </Td> </Tr> </Table> <Tr> <Th> Date </Th> <Th> Change </Th> <Th>% Change </Th> <Th> Close </Th> </Tr>

Who did the stock market crash affect the most