QuantumScape (QS) stock vs the S&P 500 and clean tech stocks
As of 2 October 2026, QuantumScape (QS) is among the weakest stocks we track. It is well behind the S&P 500 and behind clean tech stocks as a group (CTEC) over the past three months.
Where QuantumScape stands now
As of 2 October 2026, QuantumScape is behind the S&P 500 on every window Zensei tracks, from one month to one year. The market has preferred other stocks for some time.
Inside its group, QS lags: it is behind clean tech stocks (CTEC) over both the past month and three months. As a group, clean tech stocks are gaining ground on the S&P 500 right now. The group is in transition, so the stock's place inside it matters more than usual.
QuantumScape is 2.9% of CTEC, so the fund's direction owes little to it. The thing to watch is the past month: stocks this far behind only become interesting once the recent window turns.
QS vs the S&P 500: returns
QuantumScape and the S&P 500 (SPY) side by side, over each window Zensei tracks.
Prices as of · computed from daily adjusted closes · how we measure
QS against clean tech stocks, in depth
See the size of the gap between QuantumScape and clean tech stocks (CTEC) over every window, its momentum and its relative strength, and where it sits among clean tech stocks.
See the full analysisWhich ETFs hold QuantumScape?
One fund that Zensei tracks holds QS, by weight. The fund with the largest weight is its sector on this page.
QuantumScape competitors
The largest other holdings of Global X CleanTech ETF (CTEC), with their return over the past month.
QuantumScape stock: common questions
Is QuantumScape stock beating the S&P 500?
As of 2 October 2026, QuantumScape (QS) is down 16.5% over the past month. The S&P 500 is up 1.3% over the same month. Over three months, the stock is down 35.4% and the S&P 500 is up 3.6%.
Which ETFs hold QuantumScape?
As of 2 October 2026, one fund that Zensei tracks holds QS. Its largest weight is in Global X CleanTech ETF (CTEC), at 2.9%.
Who are QuantumScape's competitors?
As of 2 October 2026, the largest other holdings of Global X CleanTech ETF (CTEC) are Bloom Energy (BE), First Solar Inc (FSLR), Nextpower Inc (NXT), Enphase Energy Inc (ENPH), Plug Power (PLUG). These are the stocks QuantumScape sits next to among clean tech stocks.
Is QuantumScape doing better than other clean tech stocks?
As of 2 October 2026, QuantumScape (QS) is behind clean tech stocks as a group (CTEC) over the past three months. Zensei Edge shows the size of the gap, its momentum and its relative strength.
Track QuantumScape against clean tech stocks and the market
Zensei Edge maps 100+ sectors and themes against the S&P 500, with each stock inside them measured against its group.