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Among the weakest

Plug Power (PLUG) stock vs the S&P 500 and clean tech stocks

As of 2 October 2026, Plug Power (PLUG) 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.

Prices as of
PLUG 1M
−9.1%
S&P 500 1M
+1.3%
Funds that hold it
2
Weight in CTEC
2.7%

Where Plug Power stands now

As of 2 October 2026, Plug Power 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, PLUG 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.

Plug Power is 2.7% of CTEC, so the fund's direction owes little to it. It sits in 2 of the sector and theme funds Zensei tracks. The thing to watch is the past month: stocks this far behind only become interesting once the recent window turns.

PLUG vs the S&P 500: returns

Plug Power and the S&P 500 (SPY) side by side, over each window Zensei tracks.

Window
PLUG
S&P 500
1 week−4.0%−0.2%
2 weeks−10.4%+1.2%
1 month−9.1%+1.3%
3 months−28.0%+3.6%
6 months−21.2%+17.9%
1 year−32.9%+16.2%

Prices as of · computed from daily adjusted closes · how we measure

Zensei Edge

PLUG against clean tech stocks, in depth

See the size of the gap between Plug Power 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 analysis

Which ETFs hold Plug Power?

2 funds that Zensei tracks hold PLUG, by weight. The fund with the largest weight is its sector on this page.

Fund
Weight
CTECClean Tech StocksMain sector
Global X CleanTech ETF
2.7%
iShares Global Clean Energy ETF
2.6%

Plug Power competitors

The largest other holdings of Global X CleanTech ETF (CTEC), with their return over the past month.

Stock
Weight
1M
8.1%+35.4%
FSLRFirst Solar Inc
6.3%−12.5%
NXTNextpower Inc
4.3%+1.5%
ENPHEnphase Energy Inc
3.9%−5.8%
2.9%−16.5%
SEDGSolaredge Technologies Inc
1.8%+1.8%
FLNCFluence Energy Inc
1.3%−27.0%
AMPXAmprius Technologies Inc
1.2%+2.0%
Each stock measured against the sector, with momentum and relative strengthUnlock with Premium

Plug Power stock: common questions

Is Plug Power stock beating the S&P 500?

As of 2 October 2026, Plug Power (PLUG) is down 9.1% over the past month. The S&P 500 is up 1.3% over the same month. Over three months, the stock is down 28.0% and the S&P 500 is up 3.6%.

Which ETFs hold Plug Power?

As of 2 October 2026, 2 funds that Zensei tracks hold PLUG. Its largest weight is in Global X CleanTech ETF (CTEC), at 2.7%. It is also in iShares Global Clean Energy ETF (ICLN, 2.6%).

Who are Plug Power'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), QuantumScape (QS). These are the stocks Plug Power sits next to among clean tech stocks.

Is Plug Power doing better than other clean tech stocks?

As of 2 October 2026, Plug Power (PLUG) 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 Plug Power 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.