The S&P/ASX 200 Index (ASX: XJO) has gained 14.7% since hitting...

The S&P/ASX 200 Index (ASX: XJO) has gained 14.7% since hitting one-year lows on 7 April, but this ASX 200 stock has left those gains in the dust.

The rocketing company in question is Boss Energy Ltd (ASX: BOE).

At market close on 7 June, Boss Energy shares were changing hands for $2.10. In afternoon trade today, shares in the ASX uranium producer are trading for $3.90 apiece.

That sees the Boss Energy share price up an eye-popping 85.7% since the April lows. Or almost six-times the gains posted by the benchmark index over this same time.

To put that in perspective, a $5,000 investment in this booming ASX 200 stock on 7 April would be worth (a rounded) $9,286 today.

That will come as great news to shareholders. Though you're unlikely to hear the cadre of short sellers betting against Boss Energy shares cheering. The uranium miner remains the most shorted share on the ASX again this week, with a short interest of 21.2%.

Here's what's been going right for investors…and wrong for short sellers.

What's sending the ASX 200 stock surging?

A number of stars have aligned to help send the Boss Energy share price surging.

First, there's been a material increase in global uranium prices. In early April the nuclear fuel was trading for US$64 per pound. On Friday, that same pound was worth US$72, up 12.5%.

With 65 nuclear reactors under construction around the world, the highest level since 1990, markets appear to be repricing uranium with high pending demand on the horizon amid limited supply growth.

The ASX 200 stock also got a big lift from its March quarterly update, released on 29 April.

Over the three months, Boss drummed 295,819 pounds of uranium, up 116% from the December quarter. And Boss Energy's ion exchange (IX) uranium production increased by 15% quarter on quarter to 246,869 pounds.

And investors reacted positively to management reaffirming full-year FY 2025 production guidance of 850,000 pounds of uranium.

The Donald Trump effect

While a number of ASX 200 stocks have gotten hammered in recent months by various policies implemented (or suggested) by United States President Donald Trump, Boss Energy isn't one of them.

Quite the opposite, in fact.

Part of that stems from the fact that uranium is exempt from the raft of US tariffs targeting most materials and goods imported into the nation.

And Boss Energy shares enjoyed another big Trump boost on 23 May.

That followed news that Trump intends to ease the regulatory processes required to construct new nuclear reactors in the US. It was also reported that Trump would declare a national emergency over the nation's current dependence on China and Russia for nuclear fuel, which would be welcome news to Aussie producers.

The ASX 200 uranium stock closed up 12.1% on the day this news hit the wires.