Lista de fondos de inversión

ROBECO ASSET MGMT

Patrimonio

461.135 M€

Fondos

184 1249 clases

Categorías

Riesgo

Rentabilidad de los fondos

Rentabilidad anualizada


Lista de todos los fondos

Rentabilidad anualizada

# Fondo Patrimonio Riesgo Rentabilidad Volatilidad
1 ROBECO HIGH YIELD BONDS 0FH EUR 125.038M€ - -3,05% 3,92% 7,00% 4,98% 2,81% -
2 Robeco High Yield Bonds 0DH € 125.038M€ 4 -3,58% 3,90% 6,41% 4,94% 2,28% -
3 Robeco High Yield Bonds 0IH € 125.038M€ 4 -2,97% 3,91% 7,06% 4,96% 2,89% -
4 Robeco High Yield Bonds BH € 125.038M€ 3 -8,97% 3,97% -0,01% 4,72% -2,70% -
5 Robeco High Yield Bonds D € 125.038M€ 4 4,88% 5,13% - - - -
6 Robeco High Yield Bonds DH € 125.038M€ 3 -3,30% 2,69% 6,17% 4,76% 3,33% -
7 Robeco High Yield Bonds IH € 125.038M€ 3 -2,76% 2,69% 6,79% 4,78% 3,94% -
8 Robeco High Yield Bonds CH € 125.038M€ 3 -8,50% 3,97% 0,50% 4,71% -2,22% -
9 Robeco High Yield Bonds FH € 125.038M€ 3 -2,83% 2,68% 6,69% 4,77% 3,85% -
10 Robeco BP US Premium Equities D € 74.748M€ 5 -4,90% 16,04% 9,21% 14,76% 9,99% -
11 Robeco BP US Premium Equities DH € 74.748M€ 5 -14,65% 16,16% 8,15% 13,43% 4,82% -
12 Robeco BP US Premium Equities I € 74.748M€ 5 -4,06% 16,05% 10,18% 14,80% 10,96% -
13 Robeco BP US Premium Equities IH € 74.748M€ 5 -14,00% 16,17% 9,02% 13,47% 5,68% -
14 Robeco BP US Premium Equities MH € 74.748M€ 5 -15,12% 16,15% 7,54% 13,41% 4,27% -
15 Robeco BP US Premium Equities F € 74.748M€ 5 -4,18% 16,05% 10,04% 14,79% 10,82% -
16 Robeco BP US Premium Equities FH € 74.748M€ 5 -14,01% 16,17% 8,96% 13,46% 5,60% -
17 Robeco QI Emerging Conservative Equities B € 45.880M€ 5 -8,02% 10,13% 5,43% 7,95% 0,84% -
18 Robeco QI Emerging Conservative Equities D € 45.880M€ 5 -3,23% 9,12% 10,83% 8,05% 6,08% -
19 Robeco QI Emerging Conservative Equities I € 45.880M€ 5 -2,60% 9,12% 11,55% 8,06% 6,77% -
20 Robeco QI Emerging Conservative Equities C € 45.880M€ 5 -7,44% 10,13% 6,09% 7,97% 1,47% -
21 Robeco QI Emerging Conservative Equities F € 45.880M€ 5 -2,63% 9,12% 11,52% 8,06% 6,73% -
22 Robeco BP Global Premium Equities B € 28.807M€ 5 -9,44% 13,77% 4,32% 12,55% 4,20% -
23 Robeco BP Global Premium Equities D € 28.807M€ 5 -7,57% 13,34% 7,14% 12,68% 7,61% -
24 Robeco BP Global Premium Equities I € 28.807M€ 5 -6,97% 13,34% 7,84% 12,72% - -
25 Robeco BP Global Premium Equities FH € 28.807M€ 5 -14,11% 13,46% - - - -
26 Robeco BP Global Premium Equities DH € 28.807M€ 5 -14,69% 13,46% - - - -
27 Robeco BP Global Premium Equities IH € 28.807M€ 5 -14,10% 13,46% - - - -
28 Robeco BP Global Premium Equities C € 28.807M€ 5 -8,87% 13,76% 4,98% 12,57% 4,85% -
29 Robeco BP Global Premium Equities F € 28.807M€ 5 -7,00% 13,34% 7,80% 12,72% - -
30 Robeco BP US Large Cap Equities D € 25.835M€ 5 -3,85% 15,69% 9,83% 14,59% 8,96% -
31 Robeco BP US Large Cap Equities DH € 25.835M€ 5 -13,12% 15,70% 8,96% 12,49% 3,87% -
32 Robeco BP US Large Cap Equities I € 25.835M€ 5 -3,20% 15,70% 10,58% 14,61% 9,69% -
33 Robeco BP US Large Cap Equities IH € 25.835M€ 5 -12,63% 15,73% 9,75% 12,55% 4,64% -
34 Robeco BP US Large Cap Equities F € 25.835M€ 5 -3,26% 15,69% 10,52% 14,61% 9,64% -
35 Robeco BP US Large Cap Equities FH € 25.835M€ 5 -12,68% 15,74% 9,66% 12,55% 4,60% -
36 Robeco Global Consumer Trends Equities D € 23.290M€ 5 4,19% 14,99% 12,88% 14,07% 11,38% -
37 Robeco Global Consumer Trends Equities I € 23.290M€ 5 5,01% 15,00% 13,76% 14,09% 12,25% -
38 Robeco Global Consumer Trends Equities M € 23.290M€ 5 3,68% 14,98% 12,32% 14,05% 10,82% -
39 Robeco Global Consumer Trends Equities F € 23.290M€ 5 4,97% 15,00% 13,73% 14,09% 12,21% -
40 Robeco Global Consumer Trends Equities FH € 23.290M€ 5 - - - - - -
41 Robeco Financial Institutions Bonds 0FH € 22.181M€ 3 -5,89% 4,69% 3,15% 5,09% - -
42 Robeco Financial Institutions Bonds 0DH € 22.181M€ 3 -6,23% 4,70% 2,78% 5,10% - -
43 Robeco Financial Institutions Bonds 0IH € 22.181M€ 3 -5,84% 4,69% 3,23% 5,09% - -
44 Robeco Financial Institutions Bonds BH € 22.181M€ 3 -8,10% 3,98% -0,73% 4,03% -1,77% -
45 Robeco Financial Institutions Bonds DH € 22.181M€ 3 -4,32% 3,58% 4,02% 4,24% 3,50% -
46 Robeco Financial Institutions Bonds IH € 22.181M€ 3 -3,91% 3,59% 4,47% 4,24% 3,94% -
47 Robeco Financial Institutions Bonds CH € 22.181M€ 3 -7,77% 3,99% -0,37% 4,04% -1,42% -
48 Robeco Financial Institutions Bonds FH € 22.181M€ 5 -3,98% 3,59% - - - -
49 Robeco QI Global Dynamic Duration DH € 17.307M€ 3 0,87% 3,22% -0,37% 5,23% 2,27% -
50 Robeco QI Global Dynamic Duration IH € 17.307M€ 3 1,31% 3,22% 0,06% 5,24% 2,71% -
51 Robeco QI Global Dynamic Duration FH € 17.307M€ 3 1,23% 3,23% -0,01% 5,23% 2,62% -
52 Robeco BP US Select Opportunities Equities D € 12.882M€ 5 -6,73% 15,20% 7,59% 14,46% 9,47% -
53 Robeco BP US Select Opportunities Equities DH € 12.882M€ 5 -16,24% 15,11% 6,51% 13,26% 4,28% -
54 Robeco BP US Select Opportunities Equities I € 12.882M€ 5 -5,91% 15,21% 8,53% 14,49% 10,44% -
55 Robeco BP US Select Opportunities Equities IH € 12.882M€ 5 -15,50% 15,08% 7,43% 13,26% - -
56 Robeco BP US Select Opportunities Equities F € 12.882M€ 5 -6,03% 15,21% 8,29% 14,52% - -
57 Robeco BP US Select Opportunities Equities FH € 12.882M€ 5 -15,57% 15,08% 7,35% 13,26% 5,06% -
58 ROBECO QI EUROPEAN CONSERVATIVE EQUITIES IH EUR 10.740M€ - -5,44% 8,75% 5,34% 7,62% 6,13% -
59 Robeco QI European Conservative Equities D € 10.740M€ 5 -5,31% 8,64% 3,11% 7,46% 5,04% -
60 Robeco QI European Conservative Equities I € 10.740M€ 5 -4,81% 8,65% 3,65% 7,47% 5,59% -
61 Robeco QI European Conservative Equities B € 10.740M€ 5 -9,06% 9,30% -0,95% 7,40% 0,88% -
62 Robeco QI European Conservative Equities C € 10.740M€ 5 -8,61% 9,30% -0,44% 7,42% 1,39% -
63 Robeco QI European Conservative Equities F € 10.740M€ 5 -4,84% 8,65% - - - -
64 Robeco Emerging Stars Equities D € 6.775M€ 6 -10,80% 10,63% 11,95% 11,61% 6,72% -
65 Robeco Emerging Stars Equities I € 6.775M€ 6 -10,10% 10,63% 12,73% 11,63% 7,44% -
66 Robeco Emerging Stars Equities F € 6.775M€ 6 -10,17% 10,63% 12,70% 11,65% 7,38% -
67 Robeco Global Total Return Bond Fund DH € 6.400M€ 3 -3,68% 1,80% -1,24% 2,98% 0,39% -
68 Robeco Global Total Return Bond Fund IH € 6.400M€ 3 -3,30% 1,80% -0,86% 2,98% 0,78% -
69 Robeco Global Total Return Bond Fund FH € 6.400M€ 3 -3,38% 1,80% -0,93% 2,98% 0,70% -
70 Robeco Emerging Markets Equities D € 6.121M€ 6 -12,35% 11,64% 13,39% 12,18% 7,07% -
71 Robeco Emerging Markets Equities I € 6.121M€ 6 -11,66% 11,65% 14,28% 12,21% 7,91% -
72 Robeco Emerging Markets Equities M € 6.121M€ 6 -12,79% 11,64% 12,82% 12,17% 6,53% -
73 Robeco Emerging Markets Equities F € 6.121M€ 6 -11,73% 11,64% 14,18% 12,20% 7,82% -
74 Robeco New World Financial Equities I EUR 5.751M€ 6 -6,19% 14,36% - - - -
75 Robeco New World Financial Equities D € 5.751M€ 6 -7,38% 14,39% 11,47% 16,34% 7,11% -
76 Robeco New World Financial Equities F € 5.751M€ 6 -6,68% 14,40% 12,32% 16,37% 7,91% -
77 Robeco New World Financial Equities FH € 5.751M€ 6 - - - - - -
78 ROBECO GLOBAL CREDITS FH EUR 4.852M€ - -3,38% 2,24% - - - -
79 Robeco Global Credits 0IH € 4.852M€ 3 -3,25% 2,64% 2,38% 2,33% - -
80 Robeco Global Credits DH € 4.852M€ 3 -3,63% 2,24% - - - -
81 Robeco Global Credits IH € 4.852M€ 3 -3,37% 2,24% 1,91% 3,66% - -
82 ROBECO GLOBAL FINTECH EQUITIES F GBP 4.521M€ - - - - - - -
83 Robeco Asia-Pacific Equities D € 3.676M€ 5 -11,50% 12,91% 8,18% 13,84% 7,05% -
84 Robeco Asia-Pacific Equities F € 3.676M€ 5 -10,83% 12,93% 9,00% 13,87% 7,85% -
85 Robeco Asia-Pacific Equities I € 3.676M€ 5 -10,81% 12,92% - - - -
86 Robeco QI Global Conservative Equities B € 3.378M€ 5 -2,34% 10,26% 2,30% 7,63% 4,85% -
87 Robeco QI Global Conservative Equities D € 3.378M€ 5 1,70% 9,37% 6,48% 7,70% 9,16% -
88 Robeco QI Global Conservative Equities I € 3.378M€ 5 2,23% 9,37% 7,05% 7,71% 9,74% -
89 Robeco QI Global Conservative Equities F € 3.378M€ 5 2,19% 9,36% - - - -
90 Robeco Euro Sustainable Credits FH € 3.376M€ 3 -1,48% 0,91% 1,99% 2,04% 2,31% -
91 Robeco Euro Sustainable Credits BH € 3.376M€ 3 -3,77% 1,09% -1,35% 1,81% -1,87% -
92 Robeco Euro Sustainable Credits DH € 3.376M€ 3 -1,82% 0,91% 1,64% 2,05% 1,95% -
93 Robeco Euro Sustainable Credits IH € 3.376M€ 3 -1,40% 0,91% 2,08% 2,05% 2,39% -
94 ROBECO INVESTMENT GRADE CORPORATE BONDS CH EUR 3.296M€ - -2,48% 1,22% -0,95% 2,33% -1,42% -
95 ROBECO INVESTMENT GRADE CORPORATE BONDS IHHI EUR 3.296M€ - -1,50% 1,86% 2,46% 2,34% 1,59% -
96 ROBECO INVESTMENT GRADE CORPORATE BONDS 0IH EUR 3.296M€ - -2,40% 1,39% 1,18% 1,71% - -
97 Robeco Investment Grade Corporate Bonds BH € 3.296M€ 3 -2,84% 1,23% -1,31% 2,33% -1,72% -
98 Robeco Investment Grade Corporate Bonds DH € 3.296M€ 3 -0,85% 0,92% 1,71% 2,52% 2,06% -
99 Robeco Investment Grade Corporate Bonds IH € 3.296M€ 3 -0,38% 0,91% 2,19% 2,53% 2,55% -
100 Robeco Investment Grade Corporate Bonds FH € 3.296M€ 3 -0,48% 0,93% 2,07% 2,52% 2,42% -
101 ROBECO EURO GOVERNMENT BONDS IHHI EUR 2.878M€ - -1,67% 2,57% 0,86% 2,50% 1,73% -
102 Robeco Euro Government Bonds 2IH € 2.878M€ 3 -1,45% 3,18% -0,14% 2,09% - -
103 Robeco Euro Government Bonds DH € 2.878M€ 3 0,04% 3,27% 0,55% 3,53% 2,86% -
104 Robeco Euro Government Bonds IH € 2.878M€ 3 0,25% 3,26% 0,75% 3,54% 3,07% -
105 Robeco Euro Government Bonds FH € 2.878M€ 3 0,21% 3,27% 0,72% 3,54% 3,03% -
106 Robeco Euro Credit Bonds DH € 2.625M€ 3 -1,90% 0,92% 1,84% 2,13% 2,10% -
107 Robeco Euro Credit Bonds IH € 2.625M€ 3 -1,48% 0,92% 2,27% 2,13% 2,53% -
108 Robeco Euro Credit Bonds FH € 2.625M€ 3 -1,55% 0,92% 2,20% 2,12% 2,45% -
109 Robeco Global Stars Equities Fund EUR 2.485M€ 5 -4,05% 15,44% 6,00% 12,67% 5,59% -
110 ROBECO PROPERTY EQUITIES F EUR 2.474M€ - 5,98% 12,05% 6,15% 8,20% 9,31% -
111 ROBECO PROPERTY EQUITIES C EUR 2.474M€ - 1,78% 12,74% 1,99% 8,12% 4,57% -
112 Robeco Property Equities B € 2.474M€ 5 0,97% 12,73% 1,21% 8,11% 3,81% -
113 Robeco Property Equities D € 2.474M€ 5 5,19% 12,04% 5,35% 8,18% 8,50% -
114 Robeco Property Equities I € 2.474M€ 5 6,00% 12,05% 6,18% 8,20% 9,35% -
115 Robeco Property Equities IH € 2.474M€ 5 -1,56% 11,25% 5,41% 7,05% 5,71% -
116 Robeco QI Emerging Markets Active Equities D € 2.424M€ 6 -10,99% 12,63% 15,06% 11,82% 6,09% -
117 Robeco QI Emerging Markets Active Equities I € 2.424M€ 6 -10,43% 12,63% 15,78% 11,84% 6,76% -
118 Robeco QI Emerging Markets Active Equities F € 2.424M€ 6 -10,43% 12,63% 15,77% 11,84% 6,75% -
119 Robeco All Strategy Euro Bonds DHHI € 2.055M€ 3 - 2,07% - 1,64% - -
120 RobecoSAM Sustainable European Equities D € 1.906M€ 6 -4,17% 9,92% 7,56% 10,48% 4,78% -
121 RobecoSAM Sustainable European Equities I € 1.906M€ 6 -3,55% 9,92% 8,24% 10,50% 5,45% -
122 RobecoSAM Sustainable European Equities F € 1.906M€ 6 -3,56% 9,92% 8,23% 10,50% 5,43% -
123 Robeco Chinese Equities D € 1.383M€ 6 -20,01% 18,00% 9,82% 18,16% 6,54% -
124 Robeco Chinese Equities I € 1.383M€ 6 -19,42% 18,00% - - - -
125 Robeco Chinese Equities F € 1.383M€ 6 -19,43% 18,00% 10,63% 18,19% 7,33% -
126 ROBECO (LU) FUNDS III - ROBECO QI LONG/SHORT DYNAMIC DURATION FH EUR 1.334M€ - 0,55% 1,72% -0,87% 2,06% 0,26% -
127 Robeco QI Long/Short Dynamic Duration DH € 1.334M€ 3 0,22% 1,73% -1,21% 2,06% -0,08% -
128 Robeco QI Long/Short Dynamic Duration EH € 1.334M€ 3 -0,39% 1,81% -1,89% 2,47% -1,10% -
129 Robeco QI Long/Short Dynamic Duration IH € 1.334M€ 3 0,69% 1,72% -0,74% 2,06% 0,40% -
130 ROBECO EUROPEAN HIGH YIELD BONDS 0IH EUR 1.080M€ - -2,84% 3,85% 4,83% 4,59% - -
131 Robeco European High Yield Bonds DH € 1.080M€ 3 -1,99% 3,06% 5,05% 4,12% 3,74% -
132 Robeco European High Yield Bonds IH € 1.080M€ 3 -1,42% 3,07% 5,66% 4,13% 4,34% -
133 Robeco European High Yield Bonds FH € 1.080M€ 3 -1,50% 3,07% 5,57% 4,13% 4,25% -
134 ROBECO QI GLOBAL DEVELOPED SUSTAINABLE ENHANCED INDEX EQUITIES F EUR 770M€ - -2,91% 13,38% 9,28% 12,57% - -
135 Robeco QI Global Developed Sustainable Enhanced Index Equities I EUR 770M€ 5 -2,74% 13,38% 9,48% 12,57% - -
136 Robeco QI Global Developed Sustainable Enhanced Index Equities D EUR 770M€ 5 -3,12% 13,37% 9,06% 12,56% - -
137 Robeco QI Global Multi-Factor Credits IH € 581M€ 3 -3,21% 1,96% 1,22% 3,67% - -
138 ROBECO EMERGING MARKETS SMALLER COMPANIES EQUITIES F EUR 563M€ - -9,79% 11,58% 8,11% 9,61% 6,22% -
139 ROBECO EMERGING MARKETS SMALLER COMPANIES EQUITIES I EUR 563M€ - -9,77% 11,59% - - - -
140 Robeco Emerging Markets Smaller Companies Equities D € 563M€ 6 -10,55% 11,59% 7,18% 9,58% 5,30% -
141 Robeco QI Global Developed Conservative Equities D € 559M€ 5 -1,95% 10,51% 5,68% 9,11% - -
142 Robeco QI Global Developed Conservative Equities I € 559M€ 5 -1,44% 10,52% 5,69% 8,84% - -
143 ROBECO ASIAN STARS EQUITIES F EUR 544M€ - -12,10% 11,94% 10,77% 12,10% 7,69% -
144 Robeco Asian Stars Equities D € 544M€ 6 -12,75% 11,94% 9,96% 12,09% 6,88% -
145 Robeco QI US Conservative Equities D € 443M€ 5 2,57% 12,14% 8,50% 10,26% - -
146 Robeco QI US Conservative Equities I € 443M€ 5 3,08% 12,15% 9,02% 10,28% - -
147 Robeco QI Global Momentum Equities D € 347M€ 5 -10,93% 14,61% 7,20% 13,12% - -
148 Robeco QI Global Momentum Equities I € 347M€ 5 -10,46% 14,61% 7,77% 13,13% 7,86% -
149 Robeco QI Global Momentum Equities F € 347M€ 5 -10,48% 14,61% 7,75% 13,13% - -
150 Robeco QI Global Developed Multi-Factor Equities D € 216M€ 5 -5,25% 12,95% 8,08% 12,23% - -
151 Robeco QI Global Developed Multi-Factor Equities I € 216M€ 5 -4,75% 12,95% 8,65% 12,24% - -
152 Robeco QI Emerging Markets Enhanced Index Equities D € 209M€ 6 -10,00% 11,89% - - - -
153 Robeco QI Emerging Markets Enhanced Index Equities F € 209M€ 6 -9,69% 11,89% - - - -
154 ROBECOSAM SUSTAINABLE FOOD EQUITIES F EUR 173M€ - -3,69% 11,03% 7,16% 11,10% 4,21% -
155 RobecoSAM Sustainable Food Equities D € 173M€ 5 -4,42% 11,02% 6,34% 11,08% 3,42% -
156 RobecoSAM Sustainable Food Equities I € 173M€ 5 -3,67% 11,03% 7,18% 11,10% 4,24% -
157 Robeco QI Dynamic High Yield IH € 173M€ 4 -2,19% 3,46% 5,85% 4,22% - -
158 Robeco Emerging Debt D € 170M€ 4 -3,44% 9,31% 4,47% 8,01% -2,95% -
159 ROBECO GLOBAL STARS EQUITIES F EUR 167M€ - -1,69% 13,91% 9,93% 12,11% 9,18% -
160 Robeco Global Stars Equities D € 167M€ 5 -2,39% 14,04% 9,21% 12,07% 8,47% -
161 Robeco QI Global Developed Enhanced Index Equities D € 161M€ 5 -2,59% 13,32% - - - -
162 Robeco QI Global Developed Enhanced Index Equities F € 161M€ 5 -2,35% 13,32% - - - -
163 Robeco QI Global Developed Enhanced Index Equities I € 161M€ 5 -2,25% 13,33% - - - -
164 Robeco Corporate Hybrid bonds IH € 98M€ 3 -4,07% 3,37% - - - -
165 ROBECO GLOBAL INDUSTRIAL INNOVATION EQUITIES I EUR 76M€ - -8,57% 13,71% - - - -
166 Robeco Global Industrial Innovation Equities D € 76M€ 5 -9,28% 13,70% - - - -
167 Robeco QI Global Value Equities I € 69M€ 5 -3,48% 14,09% 12,99% 14,72% 8,46% -
168 Robeco Global Credits Short Maturity IH € 59M€ 2 -1,31% 0,88% - - - -
169 Robeco QI US Enhanced Index Equities D € 58M€ 5 1,53% 15,43% - - - -
170 Robeco QI US Enhanced Index Equities F € 58M€ 5 1,78% 15,43% - - - -
171 Robeco QI US Enhanced Index Equities I € 58M€ 5 1,87% 15,43% - - - -
172 Robeco Global Growth Trends Equities D € 47M€ 5 -2,31% 13,81% 13,28% 13,30% 9,23% -
173 Robeco QI Global Conservative Multi-Asset D € 41M€ 4 -1,42% 4,17% - - - -
174 Robeco QI Global Conservative Multi-Asset I € 41M€ 4 -0,90% 4,19% - - - -
175 Robeco Indian Equities D € 40M€ 6 -3,15% 15,98% 8,79% 14,07% 12,64% -
176 Robeco Afrika Fonds 32M€ 6 -19,69% 16,00% 3,61% 11,13% -4,08% -
177 Robeco QI European Enhanced Index Equities D € 25M€ 5 -10,48% 11,53% - - - -
178 Robeco QI European Enhanced Index Equities F € 25M€ 5 -10,25% 11,52% - - - -
179 Robeco QI European Enhanced Index Equities I € 25M€ 5 -10,18% 11,53% - - - -
180 ROBECO QI GLOBAL QUALITY EQUITIES F EUR 11M€ - -1,19% 12,81% - - - -
181 Robeco QI Global Quality Equities D € 11M€ 5 -1,69% 12,80% - - - -
182 Robeco QI Global Quality Equities I € 11M€ 5 -1,16% 12,81% - - - -
183 Robeco Emerging Opportunities Equities D € 3M€ 6 -13,62% 10,60% 11,08% 12,00% - -
184 Robeco QI GTAA Plus I € 3M€ 6 -5,51% 15,58% -10,22% 9,04% -3,47% -

Para aquellos fondos que tengan más de una clase se está utilizando la rentabilidad y datos asociados de la clase con mayor patrimonio.

* Patrimonio en millones.

Aviso legal sobre productos

Los datos de evolución y rentabilidad se muestran con fines informativos. Rentabilidades pasadas no son garantía de rentabilidades futuras ni indicadores fiables de la evolución futura de un activo.

Fuente: Vdos.