Tesla's soaring stock has Elon Musk nearing another $1.8B US payday

Tesla Inc.'s blistering stock rally is putting CEOElon Musk in reach of a payday potentially worth $1.8 billion US, his second jackpot from the electric carmaker in about two months.

Fuelled by stronger-than-expected car deliveries, shares of Tesla have surged over 40 per centin the past seven sessions, elevating the company's market capitalization to $259 billion US. More importantly for Musk's personal finances, Tesla's six-month average market capitalization has reached a record $138 billion US.

Hitting a six-month average market capitalization of $150 billion US would trigger the vesting of the second of 12 tranches of options granted to the billionaire to buy Tesla stock as part of his 2018 pay package. In early May, Musk's first tranche vested after Tesla's six-month average stock market value reached $100 billion US.

Musk has already achieved targets related to Tesla's financial growth that are also required in order to vest the approaching options tranche.

• Investors make Tesla the most valuable car company in the world

Each tranche gives Musk the option to buy 1.69 million Tesla shares at $350.02 US each. At Tesla's current stock price of $1,397 US, Musk would theoretically be able to sell the shares related to the tranche that vested in May and the upcoming tranche for a combined profit of over $3.5 billion, or $1.8 billion per tranche.

Musk's first tranche was worth about $700 million in May, when it vested, but its value has since increased along with Tesla's stock price.

Tesla has surged 500 per centover the past year as the company increased sales of its Model 3 sedan.

Company reporting strong sales despite pandemic

Tesla last week reported higher-than-expected second-quarter vehicle deliveries, defying plummeting sales in the wider auto industry as the coronavirus pandemic slammed the global economy.

The solid delivery numbers heightened expectations of a profitable second quarter, which would mark four consecutive profitable quarters, a first for Tesla, and a key hurdle to be added to the S&P 500 index.

Musk, who is also the majority owner and CEO of the SpaceX rocket maker, receives no salary, only the options in his pay package. A full payoff of all tranches would surpass anything previously granted to U.S. executives.

When Tesla unveiled Musk's pay package, it said he could theoretically reap as much as $55.8 billion US if no new shares were issued. However, Tesla has since issued shares to compensate employees, and also sold shares in secondary offers, including a $2 billion stock sale in February.