TATA STONE is a private equity firm, and the company is part of Tata Steel Group.
Its shares have risen from just $1.25 per share on Monday to $1 on Tuesday.
This is a dramatic rise on the previous day.
The price has risen from $1 to $3 on Wednesday, with the last price rise on Friday.
Tata Steel shares were trading at $1,250 a share on Tuesday morning, which is the highest on record for a single day.
It is the third time that Tata Steel has been traded at $10 or more.
However, it is not the only steel firm that has risen in value this year.
The UK’s National Grid is now worth $5.2 billion, while US steel maker United Steelworkers is now valued at $8.5 billion.
In total, Tata Steel is up $4 billion.
Tata Power, the parent of Tata Power Power and the largest steel company in the world, is up 1,600 per cent to $2.2 trillion.
The other major steel firm in the UK is US steel giant Caterpillar.
Caterpillar’s stock has risen 7,300 per cent in the last year.
Other British steel firms are up 2,600 percent, including Tata Steel, which has risen more than 500 per cent.
Tata has a global turnover of $2 trillion, with over 500,000 employees.
The company is one of the world’s largest private equity firms.