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Side-by-side financial comparison of Amphastar Pharmaceuticals, Inc. (AMPH) and Empire State Realty OP, L.P. (ESBA). Click either name above to swap in a different company.

Empire State Realty OP, L.P. is the larger business by last-quarter revenue ($199.2M vs $183.1M, roughly 1.1× Amphastar Pharmaceuticals, Inc.). Empire State Realty OP, L.P. runs the higher net margin — 16.1% vs 13.3%, a 2.8% gap on every dollar of revenue. On growth, Empire State Realty OP, L.P. posted the faster year-over-year revenue change (0.8% vs -1.8%). Empire State Realty OP, L.P. produced more free cash flow last quarter ($50.6M vs $24.6M). Over the past eight quarters, Empire State Realty OP, L.P.'s revenue compounded faster (4.9% CAGR vs 3.2%).

Amphastar Pharmaceuticals is a publicly traded American speciality pharmaceutical company. It was incorporated in May 2004 and primarily develops, manufactures, and sells inhalation and intranasal products.

Empire State Realty OP, L.P. is a real estate operating partnership focused on owning, managing, and leasing premium commercial and retail properties primarily in the New York City metropolitan area. Its portfolio includes iconic landmarks like the Empire State Building, serving corporate tenants, retail brands and tourism-related business segments.

AMPH vs ESBA — Head-to-Head

Bigger by revenue
ESBA
ESBA
1.1× larger
ESBA
$199.2M
$183.1M
AMPH
Growing faster (revenue YoY)
ESBA
ESBA
+2.7% gap
ESBA
0.8%
-1.8%
AMPH
Higher net margin
ESBA
ESBA
2.8% more per $
ESBA
16.1%
13.3%
AMPH
More free cash flow
ESBA
ESBA
$26.0M more FCF
ESBA
$50.6M
$24.6M
AMPH
Faster 2-yr revenue CAGR
ESBA
ESBA
Annualised
ESBA
4.9%
3.2%
AMPH

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AMPH
AMPH
ESBA
ESBA
Revenue
$183.1M
$199.2M
Net Profit
$24.4M
$32.2M
Gross Margin
46.8%
Operating Margin
19.4%
17.8%
Net Margin
13.3%
16.1%
Revenue YoY
-1.8%
0.8%
Net Profit YoY
-35.7%
71.2%
EPS (diluted)
$0.51
$0.11

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
AMPH
AMPH
ESBA
ESBA
Q4 25
$183.1M
$199.2M
Q3 25
$191.8M
$197.7M
Q2 25
$174.4M
$191.3M
Q1 25
$170.5M
$180.1M
Q4 24
$186.5M
$197.6M
Q3 24
$191.2M
$199.6M
Q2 24
$182.4M
$189.5M
Q1 24
$171.8M
$181.2M
Net Profit
AMPH
AMPH
ESBA
ESBA
Q4 25
$24.4M
$32.2M
Q3 25
$17.4M
$13.6M
Q2 25
$31.0M
$11.4M
Q1 25
$25.3M
$15.8M
Q4 24
$38.0M
$18.8M
Q3 24
$40.4M
$22.8M
Q2 24
$37.9M
$28.6M
Q1 24
$43.2M
$10.2M
Gross Margin
AMPH
AMPH
ESBA
ESBA
Q4 25
46.8%
Q3 25
51.4%
Q2 25
49.6%
Q1 25
50.0%
Q4 24
46.5%
Q3 24
53.3%
Q2 24
52.2%
Q1 24
52.4%
Operating Margin
AMPH
AMPH
ESBA
ESBA
Q4 25
19.4%
17.8%
Q3 25
13.2%
19.9%
Q2 25
24.2%
18.4%
Q1 25
21.9%
14.3%
Q4 24
24.2%
21.7%
Q3 24
29.8%
22.7%
Q2 24
30.3%
20.8%
Q1 24
27.9%
17.1%
Net Margin
AMPH
AMPH
ESBA
ESBA
Q4 25
13.3%
16.1%
Q3 25
9.0%
6.9%
Q2 25
17.8%
6.0%
Q1 25
14.8%
8.8%
Q4 24
20.4%
9.5%
Q3 24
21.1%
11.4%
Q2 24
20.8%
15.1%
Q1 24
25.1%
5.6%
EPS (diluted)
AMPH
AMPH
ESBA
ESBA
Q4 25
$0.51
$0.11
Q3 25
$0.37
$0.05
Q2 25
$0.64
$0.04
Q1 25
$0.51
$0.05
Q4 24
$0.74
$0.07
Q3 24
$0.78
$0.08
Q2 24
$0.73
$0.10
Q1 24
$0.81
$0.03

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
AMPH
AMPH
ESBA
ESBA
Cash + ST InvestmentsLiquidity on hand
$282.8M
$132.7M
Total DebtLower is stronger
$608.7M
Stockholders' EquityBook value
$788.8M
Total Assets
$1.6B
$4.5B
Debt / EquityLower = less leverage
0.77×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMPH
AMPH
ESBA
ESBA
Q4 25
$282.8M
$132.7M
Q3 25
$276.2M
$154.1M
Q2 25
$231.8M
$94.6M
Q1 25
$236.9M
$187.8M
Q4 24
$221.6M
$385.5M
Q3 24
$250.5M
$421.9M
Q2 24
$217.8M
$535.5M
Q1 24
$289.6M
$333.6M
Total Debt
AMPH
AMPH
ESBA
ESBA
Q4 25
$608.7M
Q3 25
$608.6M
Q2 25
$607.7M
Q1 25
$603.9M
Q4 24
$601.6M
Q3 24
$596.4M
Q2 24
$586.9M
Q1 24
$594.0M
Stockholders' Equity
AMPH
AMPH
ESBA
ESBA
Q4 25
$788.8M
Q3 25
$776.7M
Q2 25
$757.5M
Q1 25
$751.3M
Q4 24
$732.3M
Q3 24
$727.7M
Q2 24
$713.3M
Q1 24
$672.4M
Total Assets
AMPH
AMPH
ESBA
ESBA
Q4 25
$1.6B
$4.5B
Q3 25
$1.7B
$4.1B
Q2 25
$1.6B
$4.1B
Q1 25
$1.6B
$4.1B
Q4 24
$1.6B
$4.5B
Q3 24
$1.5B
$4.4B
Q2 24
$1.5B
$4.4B
Q1 24
$1.6B
$4.2B
Debt / Equity
AMPH
AMPH
ESBA
ESBA
Q4 25
0.77×
Q3 25
0.78×
Q2 25
0.80×
Q1 25
0.80×
Q4 24
0.82×
Q3 24
0.82×
Q2 24
0.82×
Q1 24
0.88×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AMPH
AMPH
ESBA
ESBA
Operating Cash FlowLast quarter
$32.9M
$249.1M
Free Cash FlowOCF − Capex
$24.6M
$50.6M
FCF MarginFCF / Revenue
13.4%
25.4%
Capex IntensityCapex / Revenue
4.5%
99.6%
Cash ConversionOCF / Net Profit
1.35×
7.74×
TTM Free Cash FlowTrailing 4 quarters
$121.2M
$109.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMPH
AMPH
ESBA
ESBA
Q4 25
$32.9M
$249.1M
Q3 25
$52.6M
$105.3M
Q2 25
$35.6M
$26.7M
Q1 25
$35.1M
$83.1M
Q4 24
$29.0M
$260.9M
Q3 24
$60.0M
$102.8M
Q2 24
$69.1M
$37.1M
Q1 24
$55.3M
$70.9M
Free Cash Flow
AMPH
AMPH
ESBA
ESBA
Q4 25
$24.6M
$50.6M
Q3 25
$47.2M
$72.8M
Q2 25
$25.0M
$-55.1M
Q1 25
$24.4M
$41.1M
Q4 24
$16.6M
$88.0M
Q3 24
$46.2M
$-65.1M
Q2 24
$63.1M
$19.5M
Q1 24
$46.5M
$23.2M
FCF Margin
AMPH
AMPH
ESBA
ESBA
Q4 25
13.4%
25.4%
Q3 25
24.6%
36.8%
Q2 25
14.3%
-28.8%
Q1 25
14.3%
22.8%
Q4 24
8.9%
44.5%
Q3 24
24.1%
-32.6%
Q2 24
34.6%
10.3%
Q1 24
27.1%
12.8%
Capex Intensity
AMPH
AMPH
ESBA
ESBA
Q4 25
4.5%
99.6%
Q3 25
2.8%
16.5%
Q2 25
6.1%
42.8%
Q1 25
6.3%
23.4%
Q4 24
6.7%
87.5%
Q3 24
7.2%
84.1%
Q2 24
3.3%
9.3%
Q1 24
5.1%
26.3%
Cash Conversion
AMPH
AMPH
ESBA
ESBA
Q4 25
1.35×
7.74×
Q3 25
3.03×
7.72×
Q2 25
1.15×
2.35×
Q1 25
1.39×
5.27×
Q4 24
0.76×
13.88×
Q3 24
1.48×
4.51×
Q2 24
1.82×
1.30×
Q1 24
1.28×
6.94×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AMPH
AMPH

Other Products$62.4M34%
Baqsimi$46.7M26%
Primatenemist$27.9M15%
Epinephrine$17.1M9%
Lidocaine$14.9M8%
Glucagon$14.1M8%

ESBA
ESBA

Real Estate Segment$163.8M82%
Observatory Segment$35.2M18%

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