Plug Power [PLUG] vs Acuity Brands [AYI] Detailed Stock Comparison

Plug Power Inc.

NASDAQ
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Acuity Brands Inc.

NYSE
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TLDR: Quick Comparison Summary

Based on 21 vital metrics comparison: Plug Power Inc. wins in 1 metrics, Acuity Brands Inc. wins in 17 metrics, with 0 ties. Acuity Brands Inc. appears stronger overall.

View Metrics Details

Vital Metrics Comparison

Metric Plug Power Inc. Acuity Brands Inc. Better
P/E Ratio (TTM) N/A 21.74 N/A
Price-to-Book Ratio 4.39 3.16 Acuity Brands Inc.
Debt-to-Equity Ratio 99.39 28.45 Acuity Brands Inc.
PEG Ratio -14.97 0.82 Acuity Brands Inc.
EV/EBITDA -7.60 12.33 Acuity Brands Inc.
Profit Margin (TTM) -229.83% 9.37% Acuity Brands Inc.
Operating Margin (TTM) -65.39% 13.06% Acuity Brands Inc.
EBITDA Margin (TTM) N/A 13.06% N/A
Return on Equity -120.50% 16.03% Acuity Brands Inc.
Return on Assets (TTM) -14.52% 8.33% Acuity Brands Inc.
Free Cash Flow (TTM) $-661.48M $533.00M Acuity Brands Inc.
Dividend Yield N/A 0.23% N/A
1-Year Return 113.95% 11.92% Plug Power Inc.
Price-to-Sales Ratio (TTM) 6.05 1.98 Acuity Brands Inc.
Enterprise Value $5.13B $9.46B Acuity Brands Inc.
EV/Revenue Ratio 7.23 2.06 Acuity Brands Inc.
Gross Profit Margin (TTM) 2.42% 49.29% Acuity Brands Inc.
Revenue per Share (TTM) $1 $149 Acuity Brands Inc.
Earnings per Share (Diluted) $-1.42 $13.63 Acuity Brands Inc.
Beta (Stock Volatility) 1.79 1.43 Acuity Brands Inc.
Short % of Float 24.51% 2.98% Acuity Brands Inc.

Plug Power Inc. vs Acuity Brands Inc. Stock Performance Analysis

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PLUG
AYI

Performance Comparison

Short-term Returns

Stock1D1W1M3M6MYTD
Plug Power Inc.1.45%-12.23%-25.93%25.00%26.13%25.56%
Acuity Brands Inc.1.78%2.13%7.42%14.37%-16.21%-18.96%

Long-term Returns

Stock1Y3Y5Y10Y15Y20Y
Plug Power Inc.113.95%-73.89%-90.54%57.71%17.95%-94.47%
Acuity Brands Inc.11.92%78.65%66.50%21.53%428.71%706.40%

Performance & Financial Health Analysis: Plug Power Inc. vs Acuity Brands Inc.

MetricPLUGAYI
Market Information
Market Cap i$4.29B$8.87B
Market Cap CategoryMid capMid cap
10 Day Avg. Volume i75,508,939469,034
90 Day Avg. Volume i70,754,336489,655
Last Close$2.80$302.53
52 Week Range$1.03 - $4.58$257.04 - $380.17
% from 52W High-38.86%-20.42%
All-Time High$1,565.00 (Jan 24, 2000)$380.17 (Jan 05, 2026)
% from All-Time High-99.82%-20.42%
Growth Metrics
Quarterly Revenue Growth0.18%0.05%
Quarterly Earnings Growth0.18%0.25%
Financial Health
Profit Margin (TTM) i-2.30%0.09%
Operating Margin (TTM) i-0.65%0.13%
Return on Equity (TTM) i-1.21%0.16%
Debt to Equity (MRQ) i99.3928.45
Cash & Liquidity
Book Value per Share (MRQ)$0.70$93.76
Cash per Share (MRQ)$0.27$9.05
Operating Cash Flow (TTM) i$-535,835,008$639.70M
Levered Free Cash Flow (TTM) i$-351,780,128$430.21M
Dividends
Last 12-Month Dividend Yield iN/A0.23%
Last 12-Month Dividend iN/A$0.71

Valuation & Enterprise Metrics Analysis: Plug Power Inc. vs Acuity Brands Inc.

MetricPLUG (Apr 21, 2026)AYI (Apr 24, 2026)
Price Ratios
P/E Ratio (TTM) iN/A21.74
Forward P/E i-14.9713.93
PEG Ratio i-14.970.82
Price to Sales (TTM) i6.051.98
Price to Book (MRQ) i4.393.16
Market Capitalization
Market Capitalization i$4.29B$8.87B
Enterprise Value i$5.13B$9.46B
Enterprise Value Metrics
Enterprise to Revenue i7.232.06
Enterprise to EBITDA i-7.6012.33
Risk & Other Metrics
Beta i1.791.43
Book Value per Share (MRQ) i$0.70$93.76

Financial Statements Comparison: Plug Power Inc. vs Acuity Brands Inc.

Financial Metrics

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Revenue

Operating Margin

Profit Margin

Long Term Debt

Income Flow Analysis

Financial Statements Comparison

Income Statement

MetricPLUG (2025)AYI (2025)
Revenue/Sales i709.92M4.35B
Cost of Goods Sold i951.96M2.27B
COGS % of Revenue i134.1%52.2%
Gross Profit i-242.04M2.08B
Gross Margin i-34.1%47.8%
Research & Development i57.96M140.20M
Operating Income (EBIT) i-679.57M593.60M
Operating Margin i-95.7%13.7%
EBITDA i-892.41M706.60M
EBITDA Margin i-125.7%16.3%
Pre-Tax Income i-1.69B500.20M
Pre-Tax Income % of Revenue i-238.5%11.5%
Income Tax i356,000103.60M
Income Tax % of Revenue i0.1%2.4%
Net Income (Profit) i-1.69B396.60M
Profit Margin i-238.6%9.1%

Balance Sheet & Liquidity Metrics

MetricPLUG (2025)AYI (2025)
Cash & Equivalents i368.54M422.50M
Total Current Assets i1.41B1.65B
Total Current Assets % of Revenue i198.7%38.0%
Total Current Liabilities i610.59M845.80M
Total Current Liabilities % of Revenue i86.0%19.5%
Long-Term Debt i836.46M981.10M
Long-Term Debt % of Revenue i117.8%22.6%
Total Shareholders Equity i1.00B2.72B
Retained Earnings i-8.23B4.29B
Retained Earnings % of Revenue i-1,158.7%98.6%
Property, Plant & Equipment i548.57M97.40M

Cash Flow Statement Comparison

MetricPLUG (2025)AYI (2025)
Operating Cash Flow i-1.61B568.10M
Operating Cash Flow % of Revenue i-226.9%13.1%
Capital Expenditures i-125.64M-68.40M
Free Cash Flow i-661.48M533.00M
FCF Margin i-93.2%12.3%
Debt Repayment i-713.53M-200.00M
Common Stock Repurchase iN/A-118.50M

Short Interest & Institutional Ownership Analysis

MetricPLUGAYI
Shares Short i339.72M780,329
Short Ratio i4.431.54
Short % of Float i24.51%2.98%
Shares Outstanding i1.39B30.46M
Float Shares i1.33B29.92M
% Held by Insiders i4.53%0.43%
% Held by Institutions i50.85%99.32%
% Held by Public i44.62%0.25%

Dividend Analysis & Yield Comparison: Plug Power Inc. vs Acuity Brands Inc.

MetricPLUGAYI
Last 12-Month Dividend iN/A$0.71
Last 12-Month Dividend Yield iN/A0.23%
3-Year Avg Annual Dividend iN/A$0.62
3-Year Avg Dividend Yield iN/A0.06%
3-Year Total Dividends iN/A$1.87
Ex-Dividend DateN/AFeb 02, 2026