MBIO Instantâneo da Ação
Preço, capitalização de mercado, P/E, EPS, ROE, dívida/patrimônio, intervalo de 52 semanas
03
Preço$0.47
P/E-2.5
EPS$-0.39
ROE-30.9%
Intervalo 52 Semanas$0–$2
MBIO Gráfico de Preço da Ação
OHLCV diário com indicadores técnicos — panorâmica, zoom e personalize sua visualização
04
intervalo
barras
A granularidade da barra se adapta ao período selecionado — passe o mouse sobre o gráfico para ver a abertura/máxima/mínima/fechamento de uma barra.
Divisões de Ações2
Data ex
Desdobramento
Tipo
16 de Janeiro de 2025
1-for-50
Reverso
4 de Abril de 2023
1-for-15
Reverso
Desempenho de 10 Anos
Tendências de receita, lucro líquido, margens e EPS
06
EPS$-0.392021-12-31 → 2025-12-31
Fluxo de caixa livre·2018-12-31 → 2024-12-31
Avaliação e Proporções07–12
Avaliação
Rácios P/E, P/S, P/B, EV/EBITDA — a ação está cara ou barata?
Métrica
Tendência de 5 anos
MBIO
média 5A
Mediana de Pares
Veredito
P/E
-2.5média 5A ≈-334.1
≈-334.1
·
·
A mediana dos pares é calculada em uma base padronizada por métrica e pode não corresponder sempre à base TTM/MRQ mostrada para esta ação.
Lucratividade
Margens bruta, operacional e líquida; ROE, ROA, ROIC
Métrica
Tendência de 5 anos
MBIO
média 5A
Mediana de Pares
Veredito
ROA
-14.3%média 5A ≈-70.4%
≈-70.4%
-156.0%
Primeira linha
ROE
-30.9%média 5A ≈-494.8%
≈-494.8%
-275.5%
Primeira linha
ROIC
-25.9%
·
·
·
Saúde financeira
Dívida, liquidez, solvência — força do balanço patrimonial
Métrica
Tendência de 5 anos
MBIO
média 5A
Mediana de Pares
Veredito
Current Ratio (Índice de liquidez corrente)
2.2média 5A ≈3.8
≈3.8
2.3
Em linha
Quick Ratio (Índice de Liquidez Seca)
2.2média 5A ≈3.7
≈3.7
1.5
Liquidez forte
Crescimento
Crescimento da receita, EPS e lucro líquido: YoY, CAGR 3 anos, CAGR 5 anos
Ainda não há dados para este grupo de rácios
Ainda não há dados fundamentais suficientes para calcular este grupo de proporções.
Métricas por Ação
EPS, valor patrimonial por ação, fluxo de caixa por ação, dividendo por ação
Métrica
Tendência de 5 anos
MBIO
média 5A
Mediana de Pares
Veredito
EPS (Diluted) (EPS (Diluído))
$-0.39média 5A ≈$-69.95
≈$-69.95
·
·
Cash Flow / Share (Fluxo de Caixa / Ação)
$-1.07média 5A ≈$-6.54
≈$-6.54
·
·
Eficiência de Capital
Giro de ativos, giro de estoques, giro de contas a receber
Ainda não há dados para este grupo de rácios
Ainda não há dados fundamentais suficientes para calcular este grupo de proporções.
valor · ≈ média 5A · mediana do setor · veredicto relativo à mediana
Histórico de Lucros
EPS real vs. estimativa, surpresa %, taxa de acerto, próxima data de resultados
14
Surpresa Média-66.6%
Próximo relatórioNov 05, 2026
Período
Relatório
EPS Actual
EPS est.
Surpresa
31 de Dezembro de 2024
$-37.95
$-8.16
-365.1%
30 de Setembro de 2024
$-2.00
$-6.63
69.8%
31 de Dezembro de 2023
$-43.00
$-67.83
36.6%
30 de Setembro de 2023
$-70.00
$-65.03
-7.7%
Fundamentos Completos
Todas as métricas por ano — demonstração de resultados, balanço patrimonial, fluxo de caixa
15
Demonstração de Resultados13
Métrica
Tendência
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
R&D Expense
·
·
·
·
·
·
·
$2M
$100.0K
$2M
SG&A Expense
$4M
$4M
$10M
$12M
$11M
$10M
$10M
$7M
$11M
$3M
Operating Expenses
$2M
$16M
$49M
$76M
$67M
$57M
$46M
$31M
$32M
$11M
Operating Income
$-2M
$-16M
$-49M
$-76M
$-67M
$-57M
$-46M
$-31M
$-32M
$-11M
Other Non-op
$511.0K
$493.0K
$-2M
$-1M
$353.0K
$-3M
$-504.0K
$561.0K
$497.0K
$-1M
Pretax Income
$-2M
$-16M
·
·
·
·
·
·
·
·
Income Tax
$27.0K
·
·
·
·
·
·
·
·
·
Net Income
$-2M
$-16M
$-52M
$-78M
$-66M
$-60M
$-46M
$-31M
$-31M
$-13M
EPS (Basic)
$-0.39
$-38.57
$-299.95
$-10.09
$-0.76
·
·
·
·
·
EPS (Diluted)
$-0.39
$-38.57
$-299.95
$-10.09
$-0.76
·
·
·
·
·
Shares (Basic)
4,908,164
609,696
172,031
7,684,508
87,885,235
·
·
·
·
·
Shares (Diluted)
4,908,164
609,696
172,031
7,684,508
87,885,235
·
·
·
·
·
EBITDA
$-2M
$-16M
$-49M
$-76M
$-67M
$-57M
$-46M
$-31M
$-32M
$-11M
Balanço Patrimonial20
Métrica
Tendência
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
Cash & Equivalents
$17M
$7M
$6M
$76M
$110M
$98M
$61M
$16M
·
$27M
Short-term Investments
·
·
·
·
·
·
$0
$18M
·
·
Prepaid Expense
$110.0K
$200.0K
$1M
$3M
$2M
$2M
$2M
$1M
$278.0K
$0
Current Assets
$18M
$9M
$11M
$79M
$112M
$100M
$63M
$35M
$61M
$27M
PP&E (Net)
$0
$371.0K
$3M
$8M
$11M
$8M
$8M
$7M
$1M
$0
PP&E (Gross)
·
·
$8M
$17M
$17M
$12M
$10M
$7M
$1M
·
Accum. Depreciation
·
$5M
$4M
$8M
$6M
$4M
$2M
$632.0K
$2.0K
·
Other Non-current Assets
$0
$250.0K
$833.0K
$261.0K
$362.0K
$250.0K
$250.0K
$271.0K
$251.0K
$0
Total Assets
$18M
$9M
$18M
$92M
$125M
$110M
$73M
$43M
$63M
$27M
Accounts Payable
$4M
$7M
$6M
$7M
$4M
$4M
$2M
$1M
$3M
$683.0K
Short-term Debt
·
·
·
·
·
$0
$1M
$0
·
·
Current Liabilities
$8M
$13M
$15M
$15M
$11M
$10M
$8M
$6M
$4M
$3M
Capital Leases
$0
$422.0K
$2M
$3M
$2M
$2M
$2M
$0
·
·
Total Liabilities
$8M
$13M
$18M
$46M
$13M
$11M
$22M
$6M
$4M
$3M
Total Debt
·
·
·
·
·
$0
$1M
·
·
·
Common Stock
·
·
·
·
·
$7.0K
$4.0K
$3.0K
$3.0K
$2.0K
Retained Earnings
$-399M
$-397M
$-381M
$-329M
$-252M
$-185M
$-125M
$-79M
$-48M
$-17M
Stockholders' Equity
$10M
$-4M
$123.0K
$46M
$112M
$98M
$52M
$36M
$60M
$24M
Liabilities + Equity
$18M
$9M
$18M
$92M
$125M
$110M
$73M
$43M
$63M
$27M
Shares Outstanding
·
·
·
·
93,582,991
70,920,693
39,403,519
26,610,183
25,236,255
15,165,244
Fluxo de Caixa9
Métrica
Tendência
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
Stock-based Comp
$129.0K
$-450.0K
$568.0K
$2M
$3M
$3M
$3M
$5M
$2M
$0
Operating Cash Flow
$-5M
$-11M
$-49M
$-65M
$-54M
$-37M
$-34M
$-19M
$-13M
$-4M
CapEx
·
$0
$64.0K
$3M
$4M
$2M
$2M
$7M
$424.0K
·
Investing Cash Flow
$1M
$0
$6M
$-3M
$-5M
$-4M
$14M
$557.0K
$-29M
$0
Stock Issued
·
$7M
$4M
·
$0
$37M
$32M
$0
·
·
Net Stock Activity
·
$7M
·
·
$0
$37M
$32M
·
·
·
Financing Cash Flow
$15M
$11M
$-26M
$34M
$71M
$78M
$65M
$181.0K
$50M
$32M
Net Change in Cash
·
·
·
·
·
·
·
$-19M
$8M
$27M
Free Cash Flow
·
$-11M
$-50M
$-68M
$-58M
$-39M
$-36M
$-26M
·
·
Lucratividade3
Métrica
Tendência
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
ROA
-14.3%
-116.5%
-93.7%
-71.3%
-56.5%
-65.5%
-79.8%
-57.7%
-68.8%
-92.0%
ROE
-30.9%
251.4%
-2497.7%
-140.2%
-56.6%
-68.7%
-81.3%
-75.3%
-74.4%
-125.6%
ROIC
-25.9%
·
·
·
·
·
·
·
·
·
Liquidez e Solvência3
Métrica
Tendência
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
Current Ratio
2.2
0.7
0.7
5.2
10.3
10.5
8.1
6.3
17.0
8.5
Quick Ratio
2.2
0.5
0.4
5.0
10.1
10.3
7.9
·
·
8.5
Debt / Equity
·
·
·
·
·
0.0
0.0
·
·
·
Por Ação4
Métrica
Tendência
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
Book Value / Share
·
·
·
·
·
$1.39
$1.31
$1.37
$2.37
$1.60
Cash Flow / Share
$-1.07
$-18.71
$-5.75
$-0.63
·
·
·
·
·
·
Cash / Share
·
·
·
·
·
$1.38
$1.56
·
·
$1.81
EPS (TTM)
$-0.39
$-38.57
$-299.95
$-10.09
$-0.76
·
·
·
·
·
Avaliação (TTM)12
Métrica
Tendência
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
Revenue TTM
$0
$0
$0
$0
$0
$0
$0
$0
$0
$0
Net Income TTM
$-2M
$-16M
$-52M
$-78M
$-66M
$-60M
$-46M
$-31M
$-31M
$-13M
Market Cap
·
·
·
·
·
$201.33B
$120.57B
$58.68B
$226.94B
·
Enterprise Value
·
·
·
·
·
$201.23B
$120.51B
·
·
·
P/E
-2.5
-0.2
-0.2
-29.4
-1638.2
·
·
·
·
·
P/B
·
·
·
·
·
2045.3
2334.4
1612.1
3792.9
·
P / Tangible Book
·
·
·
·
·
2045.3
·
·
·
·
P / Cash Flow
·
·
·
·
·
-5394.7
-3590.6
-3049.0
-17526.8
·
P / FCF
·
·
·
·
·
-5130.1
-3356.2
-2246.9
·
·
EV / EBITDA
·
·
·
·
·
-3542.4
-2626.4
·
·
·
EV / FCF
·
·
·
·
·
-5127.6
-3354.5
·
·
·
Earnings Yield
-39.8%
-435.8%
-444.4%
-3.4%
-0.06%
·
·
·
·
·
Demonstração de Resultados10
Métrica
Tendência
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
SG&A Expense
$946.0K
$880.0K
$987.0K
$957.0K
$787.0K
$1M
$-223.0K
$1M
$2M
$1M
$2M
$2M
$3M
$2M
$2M
$3M
Operating Expenses
$1M
$1M
$670.0K
$624.0K
$885.0K
$253.0K
$1M
$1M
$9M
$5M
$9M
$10M
$14M
$16M
$19M
$19M
Operating Income
$-1M
$-1M
$-670.0K
$-624.0K
$-885.0K
$-253.0K
$-1M
$-1M
$-9M
$-5M
$-9M
$-10M
$-14M
$-16M
$-19M
$-19M
Other Non-op
$98.0K
$103.0K
$132.0K
$156.0K
$123.0K
$100.0K
$65.0K
$47.0K
$341.0K
$40.0K
$125.0K
$249.0K
$-2M
$-372.0K
$-202.0K
$-149.0K
Net Income
$-1M
$-955.0K
$-538.0K
$-468.0K
$-762.0K
$-153.0K
$-952.0K
$-1M
$-8M
$-5M
$-9M
$-10M
$-16M
$-17M
$-20M
$-19M
EPS (Basic)
$-0.16
$-0.14
$-0.08
$-0.07
$-0.19
$-0.05
$6.56
$-1.96
$-18.36
$-24.81
$-294.66
$-1.23
$-2.00
$-2.06
$-2.46
$-2.42
EPS (Diluted)
$-0.16
$-0.14
$-0.08
$-0.07
$-0.19
$-0.05
$6.56
$-1.96
$-18.36
$-24.81
$-294.66
$-1.23
$-2.00
$-2.06
$-2.46
$-2.42
Shares (Basic)
6,732,970
6,729,855
·
6,241,658
4,021,276
2,860,946
·
720,911
446,587
209,201
·
8,171,582
8,127,473
8,093,662
·
7,850,208
Shares (Diluted)
6,732,970
6,729,855
·
6,241,658
4,021,276
2,860,946
·
720,911
446,587
209,201
·
8,171,582
8,127,473
8,093,662
·
7,850,208
EBITDA
$-1M
$-1M
·
$-624.0K
$-885.0K
$-253.0K
·
$-1M
$-9M
$-5M
·
$-10M
$-14M
$-16M
·
$-19M
Balanço Patrimonial16
Métrica
Tendência
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
Cash & Equivalents
$15M
$16M
$17M
$19M
$13M
$14M
$7M
$4M
$4M
$1M
$6M
$10M
$15M
$58M
$76M
$91M
Prepaid Expense
$246.0K
$107.0K
$110.0K
$160.0K
$172.0K
$211.0K
$200.0K
$84.0K
$114.0K
$1M
$1M
$4M
$3M
$3M
$3M
$3M
Current Assets
·
·
$18M
$19M
$13M
$15M
$9M
$6M
$7M
$9M
$11M
$14M
$23M
$61M
$79M
$94M
PP&E (Net)
·
·
$0
$0
$0
$0
$371.0K
$421.0K
$472.0K
$3M
$3M
$4M
$4M
$9M
$8M
$10M
PP&E (Gross)
·
·
·
·
·
·
·
$8M
$8M
$8M
·
$8M
$8M
$18M
$17M
$18M
Accum. Depreciation
·
·
·
·
·
·
·
$5M
$5M
$5M
$4M
$4M
$4M
$9M
$8M
$8M
Other Non-current Assets
·
·
$0
$0
$0
$0
$250.0K
$250.0K
$250.0K
$530.0K
$833.0K
$1M
$253.0K
$257.0K
$261.0K
$320.0K
Total Assets
$16M
$17M
$18M
$19M
$13M
$15M
$9M
$7M
$9M
$15M
$18M
$21M
$29M
$74M
$92M
$109M
Accounts Payable
$3M
$3M
$4M
$5M
$6M
$6M
$7M
$9M
$9M
$11M
$6M
$5M
$7M
$6M
$7M
$7M
Current Liabilities
$8M
$8M
$8M
$9M
$10M
$11M
$13M
$15M
$16M
$17M
$15M
$14M
$13M
$13M
$15M
$14M
Capital Leases
·
·
$0
$0
$0
$0
$422.0K
$541.0K
$656.0K
$2M
$2M
$2M
$2M
$3M
$3M
$3M
Total Liabilities
$8M
$8M
$8M
$10M
$10M
$11M
$13M
$16M
$17M
$20M
$18M
$17M
$15M
$44M
$46M
$45M
Retained Earnings
$-401M
$-400M
$-399M
$-398M
$-398M
$-397M
$-397M
$-396M
$-394M
$-386M
$-381M
$-372M
$-362M
$-346M
$-329M
$-310M
Stockholders' Equity
$8M
$9M
$10M
$10M
$3M
$4M
$-4M
$-9M
$-8M
$-5M
$123.0K
$4M
$14M
$30M
$46M
$64M
Liabilities + Equity
$16M
$17M
$18M
$19M
$13M
$15M
$9M
$7M
$9M
$15M
$18M
$21M
$29M
$74M
$92M
$109M
Shares Outstanding
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
106,427,767
Fluxo de Caixa7
Métrica
Tendência
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
Stock-based Comp
$21.0K
$22.0K
$23.0K
$23.0K
$45.0K
$38.0K
$51.0K
$42.0K
$-619.0K
$76.0K
$188.0K
$100.0K
$45.0K
$235.0K
$473.0K
$496.0K
Operating Cash Flow
$-967.0K
$-1M
$-2M
$-818.0K
$-1M
$-1M
$-2M
$-2M
$-2M
$-5M
$-7M
$-12M
$-12M
$-18M
$-15M
$-16M
CapEx
·
·
·
·
·
·
·
$0
·
·
$30.0K
$0
$34.0K
$0
$95.0K
$979.0K
Investing Cash Flow
$0
$0
$0
$0
$0
$1M
$0
$0
$0
$0
$-30.0K
$6M
$-34.0K
$0
$-420.0K
$-892.0K
Stock Issued
·
·
·
·
·
·
·
$0
·
·
$4M
$163.0K
·
·
·
·
Financing Cash Flow
$-141.0K
$0
$0
$7M
$-235.0K
$8M
$5M
$1M
$5M
$49.0K
$4M
$250.0K
$-30M
$0
$1.0K
$800.0K
Free Cash Flow
·
·
·
·
·
·
·
·
·
·
·
·
·
$-18M
·
·
Lucratividade2
Métrica
Tendência
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
ROA
-7.5%
-6.1%
·
-3.5%
-7.1%
-1.0%
·
-10.2%
-43.6%
-11.8%
·
-15.6%
-21.5%
-15.9%
·
-15.6%
ROE
-20.5%
-15.7%
·
-84.0%
28.0%
22.9%
·
60.7%
-304.6%
-41.7%
·
-29.4%
-33.9%
-26.3%
·
-20.4%
Liquidez e Solvência2
Métrica
Tendência
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
Current Ratio
·
·
·
2.1
1.3
1.3
·
0.4
0.5
0.5
·
1.0
1.8
4.8
·
7.0
Quick Ratio
1.9
2.1
·
2.0
1.3
1.3
·
0.2
0.3
0.1
·
0.7
1.2
4.6
·
6.7
Por Ação4
Métrica
Tendência
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
Book Value / Share
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
$0.60
Cash Flow / Share
·
$-0.15
·
·
·
$-0.49
·
·
·
$-0.47
·
·
·
$-2.20
·
·
Cash / Share
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
$0.86
EPS (TTM)
$-0.45
$-0.48
·
$6.25
$4.36
$-13.81
·
$-339.79
$-339.06
$-322.70
·
$-7.75
$-8.94
$-9.44
·
$-7.85
Avaliação (TTM)7
Métrica
Tendência
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
Revenue TTM
$0
$0
·
$0
$0
$0
·
$0
$0
$0
·
$0
$0
$0
·
$0
Net Income TTM
$-3M
$-3M
·
$-2M
$-3M
$-11M
·
$-23M
$-32M
$-40M
·
$-63M
$-72M
$-74M
·
$-78M
Market Cap
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
$37.44B
P/E
-1.6
-1.5
·
0.2
0.2
-0.1
·
-0.0
-0.1
-0.2
·
-13.4
-34.7
-29.2
·
-44.8
P/B
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
582.0
P / Tangible Book
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
582.0
Earnings Yield
-64.1%
-65.9%
·
411.2%
456.5%
-1104.8%
·
-2891.8%
-1433.7%
-620.6%
·
-7.5%
-2.9%
-3.4%
·
-2.2%
Período mais recente à esquerda · valores nulos mostrados como ·
Demonstrações Financeiras
Demonstração de resultados, balanço patrimonial, fluxo de caixa — anual, últimos 5 anos
16
Métrica
2025-12-31
2024-12-31
2023-12-31
2022-12-31
2021-12-31
Lucro líquido
$-2M
$-16M
$-52M
$-78M
$-66M
EPS Diluído
$-0.39
$-38.57
$-299.95
$-10.09
$-0.76
Métrica
2025-12-31
2024-12-31
2023-12-31
2022-12-31
2021-12-31
Índice de liquidez corrente
2.2
0.7
0.7
5.2
10.3
Índice de Liquidez Seca
2.2
0.5
0.4
5.0
10.1
Métrica
2025-12-31
2024-12-31
2023-12-31
2022-12-31
2021-12-31
Fluxo de caixa livre
·
$-11M
$-50M
$-68M
$-58M
Investidores institucionais (13F)
25 declarantes
· $425K total
· Em 30 de Junho de 2026
17
Instituições que relatam a posse desta ação em seu Formulário 13F trimestral da SEC. Apenas posições compradas; um único declarante pode aparecer duas vezes para opções separadas. Grandes posições de compra/venda compensatórias geralmente refletem market-making ou inventário protegido, não convicção direcional.
Detentores25
Valor detido$425K
Novas posições5
Posições encerradas3
Atividade institucional — Q2 2026 vs trimestre anterior
Novas posições
Posições encerradas
Aumentou
Diminuído
Variação líquida de ações
5 (+1 vs trimestre anterior)
3 (-2 vs trimestre anterior)
4 (-1 vs trimestre anterior)
1 (-3 vs trimestre anterior)
+31K
Comparado a Q1 2026. Os registros do Formulário 13F da SEC devem ser feitos em até 45 dias após o final do trimestre, mais um pequeno período de tolerância para registrantes atrasados — trimestres ainda dentro desse período são ignorados em favor do par mais recente totalmente reportado.
Executivos de declarações SEC Formulário 3/4/5; líquido = apenas P/V de mercado aberto
Participação em ETFs
Detido por 1 ETF
20
O peso reflete apenas participações diretas em ações (N-PORT); fundos alavancados ou baseados em derivativos podem deter exposição adicional a swaps não mostrada.